Digsi 4 Manual
Digsi 4 Manual
Digsi 4 Manual
Installing DIGSI 4
DIGSI 4
1
2
3
4
5
6
7
8
9
10
Start Up
Allocating Information Items
Manual
Edition: 05.11.07
E50417-G1176-C152-A5
Exclusion of Liability
We have checked the contents of this publication and every effort
has been made to ensure that the descriptions of both hardware
and software are as accurate as possible. However, deviations from
the description cannot be completely ruled out, so that no liability
can be accepted for any errors or omissions contained in the information given.
The data in this manual are checked regularly and the necessary
corrections are included in subsequent editions. We are grateful for
any improvements that you care to suggest.
Subject to technical modifications.
1.01.01
Copyright
Copyright Siemens AG 2007 All Rights Reserved
Dissemination or reproduction of this document, or evaluation and
communication of its contents, is not authorized except where expressly permitted. Violations are liable for damages. All rights
reserved, particularly for the purposes of patent application or
trademark registration.
Siemens Aktiengesellschaft
Registered Trademarks
DIGSI is a registered trademark of SIEMENS AG. Other designations in this manual may be trademarks that if used by third parties
for their own purposes may violate the rights of the owner.
Table of Contents
Installing DIGSI 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
19
25
35
Working online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
51
10
Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
57
DIGSI 4 Start Up
E50417-G1176-C152-A5
Table of Contents
ii
DIGSI 4 Start Up
E50417-G1176-C152-A5
Hello there to our new start-up manual for DIGSI 4. In this book we have
put into practice what many of you have been waiting for: a compact
overview of basic DIGSI 4 functions, including the optional software
modules.
Really Relaxed
No
Mission Impossible
Great Expectations
Before you get started, however, we will provide a brief overview of what
awaits you in this book.
As the first step, which you will generally perform only once, you will
install your version of DIGSI 4. Some tips on this topic are in chapter 1 of
this book.
Chapter 2 through to Chapter 6 is devoted to our exercise. In order to
complete it, the various components of DIGSI 4 are applied: Manager,
Device Configuration, Device Matrix, CFC and, last but not least, the
Display Editor. As you will probably have imagined by now, we have
developed it this way absolutely on purpose. After all, we want to
demonstrate to you the versatility of DIGSI 4 and introduce you to all
important program modules.
DIGSI 4 Start Up
E50417-G1176-C152-A5
Must-Reading
Encore
Chapter 9 is a bonus for all those who already have SIGRA 4 or want it
badly after reading this chapter. You can use SIGRA 4 to display,
synchronize, and analyses fault records. We will offer you a few morsels
of this program to whet your appetite for it.
Review
Call Me
If you have further questions on DIGSI 4, please call your local Siemens
office, or our hotline:
Phone: ++ 49 (0) 1 80 / 5 24 70 00
Fax: ++ 49 (0) 1 80 / 5 24 24 71
E-mail: support@ptd.Siemens.de
Courses
Please ask your local Siemens office for information on training courses,
or contact our hotline:
Siemens AG
Power Transmission and Distribution
Power Automation
Humboldtstr. 59
90459 Nuremberg
Phone: ++ 49 (0) 9 11 / 4 33-70 05
Fax: ++ 49 (0) 9 11 / 4 33-79 29
Tips
In each chapter we will provide at least one tip on the current topic. Such
a tip could be: Why not use the right mouse button? Right-clicking objects
of the Manager or Device Configuration generally opens a context menu
which contains related commands and thus spares you the detour via the
menu bar.
Homework
For all those who like to do additional work we have thought up some
homework at the end of each chapter.
DIGSI 4 Start Up
E50417-G1176-C152-A5
Installing DIGSI 4
Like any decent program also DIGSI 4 has its own installation routine
which will guide you neatly and safely through the installation process.
We can therefore move along without showing you every single dialog
box that comes up during installation. Rather, this short chapter provides
several tips that will pave the way for you to get through the installation
as easily as possible. For this purpose we ask ourselves the following
questions before starting the installation:
1. How does DIGSI 4 react to already existing software components?
2. What options should you select during the installation?
3. How many cups of coffee must be brewed before starting the
installation?
Ancestors
STEP 7 and
other Tools
Basic Rights
Dependent
DIGSI 4 Start Up
E50417-G1176-C152-A5
Installing DIGSI 4
Option
Transactions
High On Caffeine
And now to the question of caffeine: You'll need several cups of coffee
for the installation. The amount of data is considerable and, what's more,
the data must be placed in lots and lots of directories and subdirectories.
Thank you for your patience!
DIGSI 4 Start Up
E50417-G1176-C152-A5
If you want to do only the first part of our exercise, you should go directly
to the section on page 9 highlighted in different background color.
... and Pleasure
DIGSI 4 Start Up
E50417-G1176-C152-A5
If you have a bit more time find the answers in this chapter to these
additional questions:
Start me up
The way begins with the first step and for us this implies: Starting DIGSI
4! After you have been welcomed by our saxophone player DIGSI 4
Managerappears before your eyes.
The Center of
DIGSI 4
The DIGSI 4 Manager is the ultimate central element in DIGSI 4. You will
need it for managing individual components of your power supply
system. This immediately brings up three questions:
A) What are components?
B) What is a power supply system?
C) What does managing mean?
On A) Components include
On C) Managing includes
DIGSI 4 Start Up
E50417-G1176-C152-A5
Launching Pad
... DIGSI 4 Configure device. You use this tool to set parameters,
route information, display process data and accomplish many more
tasks.
Deja vu
By the way: If after your first steps in the DIGSI 4 Manager you find that
the basic operation is reminiscent of the Windows Explorer, you got the
right impression. We have done that on purpose. Being familiar with
Windows Explorer means half the battle in working with the DIGSI 4
Manager.
At first glance
But enough of dull theory for now. Let us get to some practice.
Have a look at what we have on the screen. If you have opened the
DIGSI 4 Manager for the first time, there is, quite frankly, not much to see.
We must fill our workspace with life first. Before, however, we create
something new, we look at what is already there.
The dialog-guide search function makes it easier for you to find projects.
DIGSI 4 Start Up
E50417-G1176-C152-A5
Sought, found
In order to find the demo project, we will avail ourselves of the useful
search function of the DIGSI 4 Manager. For this purpose, click Browse.
A further dialog box pops up. Within the shown directory select the name
of the folder in which you have installed DIGSI 4. Then click Find.
While the search is being executed you may have time to reflect on the
meaning of the word Demo Project. Surely you do know what demo
means! But what does project mean in the current context? We will go
into that as soon as we have opened our demo project.
In the meantime the search has been completed successfully. As a result
of the search the names of all found projects are displayed on the right
half of the Find dialog box. Our sample object is named Project 1. Select
this name and click OK. We now have a window for the demo project
displayed on the formerly empty desktop.
Face Value
Inner Values
Structural Change
The DIGSI 4 Manager maps the displayed structure and the data
included in it to your computer's hard disk by using several directories
and files. In doing so the DIGSI 4 Manager behaves a bit egoistically as
it does not like anybody else to interfere with this directory and file
structure. This means: When you make changes to your projects, do so
only by means of the DIGSI 4 Manager! Never manipulate the directory
and file structure directly!
DIGSI 4 Start Up
E50417-G1176-C152-A5
Of Trees...
But now back to the user interface. All very well, you will probably say,
but where is the hierarchical structure? Click View Show All Levels
on the menu bar. Applying this command displays all existing folders as
a hierarchical tree structure on the left section of the window. This section
is therefore referred to as the Tree View.
The symbol system used for the tree view is overwhelmingly simple. A
folder is used as symbol for all levels. The individual folders like all other
symbols can be renamed individually in the DIGSI 4 Manager.
In the tree view click now the folder Feeder 2. On the right section of the
window you can see names and symbols of the objects within this folder.
Since it is represented in the form of a list, the right section of the window
is also referred to as the List view. You can vary the type of
representation by selecting in the menu View one of the commands
Large Icons, Small Icons, List or Detail or by clicking one of the
corresponding toolbar buttons.
To work
DIGSI 4 Start Up
E50417-G1176-C152-A5
Quite comfortably, the list view already includes a folder with the
suitable name Folder. Since any further folder you insert will be
named accordingly, we will exhibit some individuality in naming them.
Double-click the name and change it to North Region.
Now right-click the folder. Upon that, the context menu opens from
which you select Folder. As you will have no trouble guessing, this
command will create another folder within the first folder. If you want
to create a folder on the same hierarchy level as the first folder, you
must right-click the symbol for the project and proceed
correspondingly (but that is surely old hat for you). Now give the newly
added folder the name Substation 1.
Now finally it is time to add a SIPROTEC 4 device to our topology.
Now right-click the folder created most recently. Select Insert New
Object SIPROTEC 4 device in the context menu. A small window
named Device Catalog opens. You see a folder with the name
"SIPROTEC 4 devices". The plus sign to the left of the symbol,
however, indicates that there is more to see. And, indeed, the device
catalog is structured in the same way as the tree view of the project
window.
Tip 1
Tip 2
For all changes you make, bear in mind that the DIGSI 4 Manager saves
them immediately. This is advantageous in so far as you won't have to
deal with data management while working on projects. At present,
however, there is no undo function available (we are working on that).
Therefore, changes can not be undone via menu command.
If you want to try things out for the sake of exercise, you should first make
a backup copy of the project in question. For this purpose, click File
Save As. Enter a name for the project and then click OK. You can now
give free rein to your imagination.
Tip 3
10
You can save different settings variants for one and the same
SIPROTEC 4 Device. For this purpose, click the symbol of a SIPROTEC
4 Device and select the command Create Variant in the context menu.
Initially, this variant has the same settings as the original. You can
subsequently modify the settings of the variant as you like without
changing the settings of the original.
DIGSI 4 Start Up
E50417-G1176-C152-A5
Please do not use the commands Copy and Paste to create objects
which are to communicate with one and the same SIPROTEC 4 device.
Applying these commands changes the device address which is
necessary to unambiguously identify a device within a project. If you want
to know more on this chapter, please read Chapter 8.
Tip 4
Homework
The data you have created and compiled are of course not inevitably
confined within the boundaries of your PC. You can save the data of an
individual device to give a colleague access to them. Or you can
compress the entire data of a project within one single file for archiving
purposes. Try out both procedures. For exporting and importing
individual devices, the context menu provides the commands Export
Device and Import Device. To archive or retrieve projects select the
corresponding commands in the menu File.
DIGSI 4 Start Up
E50417-G1176-C152-A5
11
12
DIGSI 4 Start Up
E50417-G1176-C152-A5
Also the second part of our serial will give you an understanding of
interesting facts. You will learn:
If you want to do only the first part of our task, you should go directly to
the section on Page 15 highlighted in different background color.
... and Pleasure
DIGSI 4 Start Up
E50417-G1176-C152-A5
If you have a bit more time find the answers in this chapter to these
additional questions:
13
In this chapter we want to look into a SIPROTEC 4 device to find out what
is already there and what we can add, omit or modify - just as we need it.
For this purpose, we imagine the device as a box which we can open to
look inside. We achieve this by right-clicking the name of a SIPROTEC 4
device within a project. For our task please select the device 7SJ631 V
4.2 for this action. From the context menu select the command Open
Object.
Some
Hamlet
Until, however, the device opens before us, there is first the Open
Device dialog box to deal with. Offline or Online, this is the question. To
be able to answer this question, we must first define the meaning of these
two terms. When we speak of a SIPROTEC 4 device within the scope of
a project, we always means the image of a real SIPROTEC 4 device
which we can also call a virtual device. This virtual device contains all
data relevant for the real device. The real SIPROTEC 4 device may still
sit on your desk freshly unwrapped. Though generally, it will be found
somewhere within a power distribution system and thus is not
immediately available to you. DIGSI 4 allows you to work exclusively with
the image in the beginning and to form its functionality according to your
requirements. During this procedure you are working in the operating
mode Offline. All data is saved on your PC. F. you want to transfer this
data into the real SIPROTEC 4 device, you must establish a
communication link to this device. From that moment on you are working
Online.
A communications link in
the operating mode
Online works of course in
two directions. It not only
transfers data into the
device but also requests
indications, measured
values and fault records
from the device.
Furthermore, this
operating mode enables
you to carry out test
functions and switch
operations. More on this
topic in Chapter 8.
For the time being, we are going to work offline. Therefore, select the
option Offline in the Open Device dialog box and then click OK. After
some status indications, which you will simply ignore for the time being,
DIGSI 4 Configure device is opened. And provide us access to
everything you have always wanted to know about your SIPROTEC 4
device, but were afraid to ask.
But I see things differently, you will probably say. Well, you are right
since currently you merely see one symbol in the
tree view that is named Offline. It indicates your
current operating mode. The list view shows four
icons with the names Settings, Measurement,
Annunciation and Oscillographic Record. From
that you reason incisively that there will be more
icons displayed in the operating mode online.
Again, you are right! DIGSI 4 was developed
according to the philosophy: What you see, is
what you need!. (Now you know what WYSIWYN stands for). For this
reason, DIGSI 4 offers you only what you currently really need. As criteria
DIGSI 4 uses the device type, the device design, the current operating
status and, of course, the functional scope you have determined.
14
DIGSI 4 Start Up
E50417-G1176-C152-A5
Practice
Try it out! Double-click Settings in the list view. The four objects of the
list view now appear in tree view below the object Offline. The list view
shows you all objects subordinate to the object Settings. Have a look at
the object named Settings Group; Settings Group A, strictly speaking.
The device features three further settings groups named B, C, and D.
However, the switching of the settings groups is disabled. This is why
DIGSI 4 does not display the objects for the further settings groups
although the are basically available.
Open the functional scope per double-click or via
the context menu. In the
topmost line of the Device
Configuration dialog box
you see the Settings Group
Change Option. Now select
the value enabled from the
dropdown list and click OK.
The list view now shows the
objects for all four settings
groups.
Take your time and click a bit
about each object. Don't
worry, you can do no harm.
All changes you make are
only temporary until you save the data explicitly To
discard all changes,
simply close the device without saving.
To work
Let us tackle now the second part of our task. In this part you will open a
SIPROTEC 4 device, enable the Settings Group Change option and
change several parameter values. All those who have already actively
worked through this chapter can skip the first three steps.
Within our project we have named Manhattan (Bronx, Beverly Hills,
or whatever you have selected) right-click the SIPROTEC 4
device7SJ631 V 4.2. A reminder: You will find it under North Region/
Substation 1. From the context menu select the command Open
Object.
In the dialog box Open Object make sure that the option Offline is
enabled. Click OK and look a bit about you. This will not only relax
your eye muscles but it will give DIGSI 4 enough time to load all data.
This done, DIGSI 4 Configure device is displayed.
DIGSI 4 Start Up
E50417-G1176-C152-A5
15
Now open the Power System Data 1within the list view. The dialog
box Power System Data 1 contains the names of different
parameters including their current values. For this purpose, the
parameters are combined in several tabs. This dialog box is an
example of most dialog boxes for entering parameter values. In all
dialog boxes, the number and kind of the displayed parameters and
tabs depend on the current operating situation. Click the tab CT's
which contains parameters for the current transformer. Change the
value for the parameter CT rated primary current to 1200 A and the
value for the parameter CT rated secondary current to 5 A. Click the
tab VT's which contains parameters for the voltage transformer
Change the value for the parameter VT Rated Primary Voltage, to
12 kV and the value for the parameter VT Rated Secondary Voltage
to 120 V. Click OK.
After you have practically become a semi-professional in working with
DIGSI 4, you can immediately go to the next step. If, however, you
prefer a short coffee break, you should make a quick save of the
changes made so far. Keep in mind: All changes you have made are
only temporary until you save them explicitly. Thus click File Save.
16
DIGSI 4 Start Up
E50417-G1176-C152-A5
If you prefer the keyboard to the mouse, you should try the following:
Open the dialog box Device Configuration. Press the tab key
repeatedly until the first dropdown list is selected. Use the vertical arrow
buttons to move to and from between the individual lists. To open a list,
hold down Alt and press one of the two vertical arrow buttons. After you
have released Alt, you can select an entry within the list with the arrow
buttons and confirm it by pressing Return. An even faster way is to select
a dropdown list and enter the first letter of
an entry, e.g. e for enabled. The corresponding entry is selected directly.
Homework
The especially industrious reader may now have a look at and edit the
start characteristic of our SIPROTEC 4 device. Before you can do that,
however, you must change the setting for 5O/5I Phase in the Device
Configuration to user-defined pickup curve. Then open the function
Overcurrent of settings group A and click the tab 51 User Pickup In the
column value 1 all values are set by default to infinite. Change two or
three settings in this column.
Now click Graph. As a result, the values from the table are displayed
graphically as a characteristic curve. You can now modify the
characteristic by moving the break points with the mouse. When you do
that you can observe how the values in the table change. Another
method is to change the values in the table and see how the
characteristic curve changes its shape.
DIGSI 4 Start Up
E50417-G1176-C152-A5
17
18
DIGSI 4 Start Up
E50417-G1176-C152-A5
We are very pleased to welcome you to the next part of our saga. We will
reward you by showing you:
If you want to do only this third part of our exercise, you should go directly
to the section on page 22 highlighted in different background color.
... and Pleasure
DIGSI 4 Start Up
E50417-G1176-C152-A5
The reader who thirsts for more knowledge will find in this chapter the
answers to these additional questions:
19
On the Train
As a child, did you have a model train or maybe you still have one? Then
you will surely agree that switching is one of the best things about trains.
One locomotive makes up a coach to be collected by a second
locomotive that brings it to its final destination. When working with DIGSI
4 you can also do switching operations, however not with trains, but with
information items such as metered values, measured values, indications,
and commands. And instead of an extensive track system we use a
clearly structured matrix.
The Matrix
Now you might remember that back in your schoodays matrix calculation
was not really one of your most favorite subjects. But don't worry! You
won't have to calculated anything. All you have to do is allocate the
mentioned information items to different sources and destinations via
mouse-click. And how that works we will show you.
Out of sight
20
After the double-click the display has become wider and you will see a lot
more than before. If not, you should check the two dropdown lists in the
toolbar. At the beginning of our lesson you should select the setting
Indications and Commands only for the left dropdown list, for the right
dropdown list choose the setting No Filter.
DIGSI 4 Start Up
E50417-G1176-C152-A5
You use the device matrix to assign information items to sources and destinations and thus you determine cause and
action.
We want LED 5 to be lit for as long as the indication is present. For this
purpose, right-click the common cell of the indication >Test Mode
(information) and of LED 5 (destination). From the context menu select
the letter U for unlatched.
The character > means
that an indication was
caused by a signal at the
binary input, i.e. by an
external event.
DIGSI 4 Start Up
E50417-G1176-C152-A5
21
All-rounder
As you see the device matrix not only enables information items to be
quickly allocated, what is more it provides a constant overview of all
existing allocations. Take your time to get acquainted with the device
matrix and also with the different options for modifying the displayed
informational scope. Before you continue with our task you should
restore the original state. The best way to do this is to close the device
without saving your changes and then re-open it.
To work
In the third part of our exercise you will allocate existing information items
and those you have created yourself to sources and destinations.
Now double-click Masking I/O (Configuration Matrix) to open the
device matrix. Make sure that the settings Indications and
Commands only and No Filter are enabled in the toolbar for the
dropdown lists.
Double-click the button Change Group to show the information items
on the settings group switching. Following our WYSIWYN principles
this button is only visible if the settings group selection was configured
as available. So if you cannot change group in the device matrix, you
should go back and have another look at Chapter 4.
For as long as a settings group is active, the corresponding indication
Change Group A to D is present. The trigger for that is accomplished
internally by the device itself. Therefore, you cannot allocate
information of the type Internal Single-Point Indication (Int SP) to
any source. You can, however, allocate it to a destination.Our
exercise wants an indication to appear on the display when settings
group B becomes active.Therefore, allocate the information item
Change Group B to the Default Display as destination. You achieve
that by right-clicking the common cell of the information item and of
the column D. From the context menu select the letter X voil!
Pressing the F1 function key at the SIPROTEC 4 device is to activate
the starting unit of a motor connected to the binary output BO1. It is,
however, not possible to assign the function key directly to the binary
output. Rather, pressing the function key generates an indication
which acts upon the contact of the binary output. But as we all know
indications don't grow on trees. So what can we do? The answer: We
create our own so-called user-defined information.
Click Insert Information on the menu bar. This action displays the
information catalog. The content of this catalog is structured similarly
to the device catalog of the DIGSI 4 Manager. As you already know
how to handle the device catalog, the operation should not cause you
any problems. Open the folder Indications and then the folder
Tagging. Click the indication O/O (Int SP) and hold the mouse button
down. Drag the indication to the button Change Group and release
the mouse button.
A new indication is added within the opened group. Double-click the
default display text IntSP OO and change it to Motor on. Assign this
new indication in the column F to Function Key 1. Thus you have
determined the source. As destination select the binary output BO1
with the option U unlatched.
22
DIGSI 4 Start Up
E50417-G1176-C152-A5
The actual starting of the motor can now take place. However, our
task stipulates a switching of the settings groups. We will have a logic
function perform this switching, which we are going to configure
ourselves by using DIGSI 4 CFC as described in Chapter 6. To this
end, we must make several information items available to DIGSI 4
CFC. One of them is the fact that the motor was started. For this
purpose you must allocate the indication Motor on to CFC as the
destination.
Tip 1
If you want to modify parameter values, you do not have to leave the
device matrix to do so. Simply right-click one of the group buttons. From
the context menu select Properties. This works, however, only with
information groups that are present.
Tip 2
If you want to save space on your screen and still have all important
information items available, you can switch from Standard View to Short
View. Click View Short View on the menu bar. In the short view, one
common column is displayed each for the source Binary inputs and for
the destinations Binary outputs and LEDs. Inside each cell of a
common column, abbreviations inform you about the type of routing of an
information item. The abbreviation R5 in the common column BI means
for example that the associated information is active when voltage is
present at binary input 5. If an information item is allocated to several
DIGSI 4 Start Up
E50417-G1176-C152-A5
23
24
If you are interested now, you can take the following small additional task
to go: Complement the allocation so that the settings group selection is
signalled by two LEDs at the SIPROTEC 4 device. One LED is to be
illuminated as long as the associated settings group is active.
DIGSI 4 Start Up
E50417-G1176-C152-A5
How to add blocks from the catalog, and how to parameterize and
interconnect them,
The reader on the fast lane can again go directly to the section on
page 27 in highlighted background.
... and Pleasure
DIGSI 4 Start Up
E50417-G1176-C152-A5
However, the epicures among you who reads the chapter from A to Z will
obtain answers to the following questions:
25
Promised!
When browsing the folder Settings you will soon come across the object
named CFC. A double-click on it reveals to us that this is a folder which
contains further entries. These entries are the names of so-called CFC
charts. Each CFC chart contains at least one logic function which
interconnects the input values with each other and, from the
interconnections, derives a result. We promise you that you won't have
to do any programming. Some basic knowledge of boolean algebra will
suffice completely.
Crash Course
The basic proceeding for creating logic functions is rather simple: First
you must allocate all information items, which you need as input values
or as results for your logic function, to CFC as the destination or the
source in the device matrix. We have already done that in Chapter 6 and,
therefore, we don't have to go into detail at this point. In the next step we
add a new CFC chart and open it. Our information items are linked by
means of function blocks which are found in various types in a catalog.
You place them into the CFC chart via Drag & Drop, parameterize them
and finally interconnect them with the input and output information items.
How the blocks work in detail is not important for you to know. And, last
but not least, the chart is compiled into a language that the SIPROTEC 4
device understands and it is saved together with the settings group.
Function
blocks
Catalog
Output
information
Input
information
With DIGSI 4 CFC you can create logic functions without programming.
26
DIGSI 4 Start Up
E50417-G1176-C152-A5
Building Plans...
Before we are putting the above said into practice, we will illustrate it by
example of an existing CFC chart. Double-click the chart name
Interlocking. DIGSI 4 CFC is opened and the selected chart is loaded.
What you now see before you is not some abstract design pattern but the
graphic representation of a logic function. Have a look at the status bar
and you will find A/Sheet 1 written there. This is because every chart can
consist of several partial charts with each partial chart comprising up to
six sheets What you see now is sheet 1 of the partial chart A.
In the center of the sheet there are several rectangles. They are the
already mentioned function blocks. Each function block has a number of
inputs to its left side which can partly be parameterized. On its right side
you can see the outputs. The inputs and outputs of the function blocks
are connected visually via lines that symbolize the logic interconnection
of signals. You will find all available function blocks within a catalog on
the right border of DIGSI 4 CFC.
Need for
Information
What is still missing now are the information items you have allocated in
the device matrix. Move the horizontal scroll bar so that the left section of
the sheet is displayed. Here you can see the information items which you
have allocated to CFC as the destination in the device matrix. They serve
as input information for the logic function. By the way, you will not
necessarily see all allocated information items but only those that were
already interconnected with function blocks. A glance at the right side of
the sheet shows us the output information items which are generated as
the result of a logic function. These information items must be allocated
to CFC as the source in the device matrix. Now close the chart and go
ahead to the next part of the exercise, i.e. Logic functions.
To work
first part
During this part you will add function blocks to a new chart, parameterize
them and interconnect them. Afterwards, you will have the plan compiled.
In the list view of DIGSI 4 Configure device select the object CFC.
Click Insert CFC chart on the menu bar. This command opens an
empty CFC chart. In this chart you will create a logic function which is
to generate an indication as soon as all currents at the same time are
smaller than 5% of their nominal value. Therefore, change the name
of the chart into limit value currents. To keep things from becoming
to easy, you cannot just rename the object directly. Rather, you must
open the dialog box Object Properties via the context menu and
rename the object there.
To open the chart you must double-click the chart name. At first you
will see an immaculately white screen before you that virtually invites
you to do some experimenting. On the right section of DIGSI 4 CFC
you should see the catalog with the function blocks. If not, click
View Catalog on the menu bar.
Within the catalog double-click Other Blocks,
select the block named Lower_Setpoint, hold the mouse button
down and drag it onto the sheet. Place it approximately in the left
upper corner of the sheet and release the mouse button. (Where you
place the block is of course only relevant for the overview of the entire
DIGSI 4 Start Up
E50417-G1176-C152-A5
27
28
DIGSI 4 Start Up
E50417-G1176-C152-A5
DIGSI 4 Start Up
E50417-G1176-C152-A5
29
SSM or SMS?
Those readers who only care for the highlighted sections of our exercise
should now wait before immediately leafing through to the next chapter,
since our exercise is continued below. First, however, we want to relate
the above said to our famous SSM, that is the seven-steps-method.
1. Make all allocations in the device matrix required for each new logic
function. Often, you will have to add new internal single-point
indications (flags) for this purpose. When all allocations are done,
save your changes.
2. Insert a new CFC chart, name it as you like and open it.
3. Before you insert the first block you must first verify the priority class.
You may have to select a different priority class if necessary. (Please
do not flip back through the pages now to find out where exactly you
have overlooked this piece of information as our explanations on this
topic will be given following our SSM.)
4. Insert the blocks into the CFC chart, parameterize them and
interconnect them with each other.
5. Launch the compilation run. Possible messages displayed at the end
of the compiling process will indicate errors in the CFC chart. he most
common causes are different tasks within a chart and also a wrong
run sequences (see also below).
6. Close DIGSI 4 CFC and save your entries in DIGSI 4 Configure
device.
7. Transfer the parameter set into the SIPROTEC 4 device to activate
the generated logic functions there.
Priority run
And now to the topics priority class and run sequence. We will,
however, present only the most important facts. We will, however,
present only the most important facts. For detailed information, please
refer to the manual and the help for DIGSI 4 CFC.
The reason for processing logic function in different priority classes is
primarily a technical one: To use the processor capacity of the
SIPROTEC 4 device to its maximum capacities. Therefore, the individual
priority classes differ in their way of processing the tasks they have been
assigned. Firstly, tasks are processed with different priorities,
irrespective of their priority class. Secondly, the cause for the processing
may be cyclic or event-driven. Basically, there are four priority classes
available. Within a chart you must, however, select exactly one of them.
Equally important is the run sequence. It determines the order in which
the individual blocks are processed. In this context, please remember the
following rule: A block whose output is connected to the input of another
block must be processed before this second block.
You can conclude the processing sequence from the so-called sequence
number in the green box of a block. (The priority class is also indicated
here). The run sequence is determined by the order in which the
individual function blocks were inserted. To display or modify the run
30
DIGSI 4 Start Up
E50417-G1176-C152-A5
sequence, click Edit Run Sequence on the menu bar. The already
well-known tree structure now shows us the current order of the function
blocks. You can change them via Drag & Drop.
To work,
second part
Let us go back to our exercise. The first logic function, which we have
already configured, compares the currents with a limit values and
generates a user-defined indication if they fall below this value. This
indication is transmitted to a second logic function which interprets it as
a criterion for switching.
You already know the following steps: insert a CFC chart, rename it,
open the chart. The second logic function triggers the actual switching
of the settings group. Therefore, name the CFC chart for example
Change Group.
When DIGSI 4 CFC has opened the chart, have a look at the status
bar on the right bottom. Here you can see which priority class is
currently set. At present this should be class MW_BEARB which was
required for the first logic function. We must now set it to PLC1.
Click Edit Run sequence on the menu bar. The window is now
split into a tree and a list view. n the tree view select the priority class
PLC1_BEARB. Then click Edit Predecessor for installation. If all
works correctly, you will receive a message confirming your change.
Close the message box and verify again the display on the status bar.
PLC1_BEARB is now displayed as priority class. The installation
Start means that no function block has yet been integrated in this
priority class. Now you only have to get back to the sheet view. To
accomplish that select the menu item Edit Run Sequence a
second time.
Following these restructuring measures, let us begin with the
configuration of the second logic function. We remember: One
criterion for switching the parameter group is the expiration of
10 seconds following the motor start. We have this period signalled to
us by means of a timer which we start together with the motor.
Therefore, drag a function block of the type Timer from the catalog
onto the sheet.
Right-click the start input BO S of the timer and select
interconnection to address from the context menu. Here select the
indication Motor On and click OK. When the motor is started, exactly
this indication is output which then serves as the starting criterion for
the timer.
Now you must set the timer. For this purpose, open the object
properties dialog for the connection T1 of the timers. Into the box
Value enter 10000. Subsequently click OK.
The second criterion for switching the settings group is the indication
I<5%, which is transmitted when the result of our first logic function is
TRUE. Since only one of the two criteria must be fulfilled for switching
the parameter group, we interconnect both result with a function block
of the type OR. Drag such a function block onto the sheet.
DIGSI 4 Start Up
E50417-G1176-C152-A5
31
Connect the output Q T1 of the timer to one of the two inputs of the
OR block. If you don't remember how to do that, re-read the first
paragraph. Interconnect the second input of the OR block with the
indication I<5%.
For the parameter group switching to take place, the internal singlepoint indication >Set Group Bit 0 must assume the value 1, i.e. must
be true. Therefore, interconnect the output of the OR block with
exactly that indication and our logic function is completely configured.
As was done for the first logic function you must also imitate a
compilation run. After the compilation run has been completed, you
can close DIGSI 4 CFC.
You have completed also the logic part of our exercise successfully! We
will conclude this lesson by giving you some helpful tips.
Tip 1
A block has among its object properties also Name and Comment.
Especially the name is helpful: The more descriptive you make it, the
easier it becomes for another person to read the chart since the name is
displayed on the blocks.
Tip 2
You can save a lot of time by multiplying blocks via the commands Copy
and Paste. But be careful: Check the run sequence afterwards and
change it if necessary.
Homework
To reward for having done your homework properly so far, we will give
you two more bits to do. First you will create a new logic function which
is to activate the parameter group C by pressing the function key 3.
Remember that for this purpose you must insert a new information item
in the device matrix and that you must configure the bit 1 for the
parameter group selection correspondingly.
32
DIGSI 4 Start Up
E50417-G1176-C152-A5
If you have still some energy left, make an LED of your choice flash. The
flashing is started by means of the function key 3, and it is stopped with
function key 4. If that is not difficult enough for you, use only one function
key for switching on and off.
By the way: You can find this and further examples in our manual for
DIGSI 4 CFC, including solutions.
DIGSI 4 Start Up
E50417-G1176-C152-A5
33
34
DIGSI 4 Start Up
E50417-G1176-C152-A5
A picture says more than thousand words. This could be the reason for
our keeping this chapter very brief. Another reason could be the salary of
the author. The true and only reason is, however, the really easy
operation of the DIGSI 4 Display Editor which enables us to finish our
exercise in a very short time.
Work...
How to load the Default Display into the DIGSI 4 Display Editor for
editing,
If you are only interested in our exercise, you can go directly to the
highlighted section on page 38.
... and Pleasure
DIGSI 4 Start Up
E50417-G1176-C152-A5
The reader who want to score additional points by reading the whole
chapter will get answers to the following questions:
35
Works of the
21st century
Default and Control Displays are illustrations that can be shown on the
display of your SIPROTEC 4 device, provided, of course, you have
invested in a SIPROTEC 4 device with a large display.
The picture visible during normal operation on the device display is called
Default Display. The Default Display shows operational measured values
dynamically and contains a blank panel also with a dynamic
representation of the current switching states. The Control Display,
however, is used for performing switching operations. You can use the
DIGSI 4 Display Editor to change existing Default and Control Displays
or to create new ones. Here some examples:
Admittedly, you can argue the informational content of the right picture.
From the artistic point of view, however, it is worth further discussion.
And, what is more, it demonstrates the versatility of the DIGSI 4 Display
Editor.
Drawing board
To start the DIGSI 4 Display Editor, open the object Settings and
subsequently one of the two objects Default Display or Control
Display. DIGSI 4 Display Editor is started and loads the selected
display. Normally, you will now see a picture similar to one of the
examples shown above (not including our little matchstick man).
36
DIGSI 4 Start Up
E50417-G1176-C152-A5
Toolbar
Standard
Library
Toolbar
Display
Toolbar
Library
Drawing
area
The toolbars of the DIGSI 4 Display Editor can be arranged in any way you prefer.
Elementary
particles
To insert an element into the Default or Control Display, you must first
click the corresponding button within the library. Click the cursor to a
position on the screen where you want to place the element. Additional
information that may be required is entered directly via dialog boxes after
you have placed the element. A dynamic element such as a disconnector
or a circuit breaker can always be moved to a different position at a later
time.
You can do a lot of experimenting with DIGSI 4 Display Editor, too,
regardless of the consequences, as you can simply close it afterwards
without saving.
DIGSI 4 Start Up
E50417-G1176-C152-A5
37
To work
To all those who are joining us at this point: Welcome to the last part of
our task. During this part of the exercise you will open the DIGSI 4
Display Editor, insert a text object and interconnect it with the active
settings group.
Open the object Settings and subsequently the object Default
Display. In doing so, the Display Editor is started and the Default
Display is loaded.
Click the button
in the Library toolbar. The library Value Display
is opened. If you don't see the required toolbar anymore, click View
Toolbars. You can determine in the following dialog what toolbars are
to be displayed. Within the displayed library click the symbol A Text.
If you move the mouse cursor on the display shown it turns into a
pencil.
Click on any position within the display. The dialog box Link opens.
This dialog box shows the display texts of all information items which
are allocated to the Default Display as the destination in the device
matrix. Each state of one of these information items could now be
used as criterion for displaying a user-defined text. Our text is to be
displayed when the settings group B is active. Therefore, select the
indication Group B and then click OK.
Now finally we have the opportunity of proving our skills as a writer
and must formulate a concise text. Although it seems unpretentious
at first glance, our proposal is unbeatable in terms of clarity and easy
understanding: Active. Should our proposal convince you, enter the
five letters and then click the green checkmark.
At the present time, you would obtain as display of the active settings
group only a two-digit bit pattern. Since this is of not much use for us,
we will change it. Click the arrow icon on the toolbar Display. Now
double-click the displayed value or select the command Object
Properties from its context menu. In the dialog box Object
Properties - User Text enter the letter A for the value 01, for the
value 10 enter the letter B. Close the dialog box
To conclude your creative activities move the text and the associated
letter to an appropriate position within the display by means of drag
and drop.
Click View Normal Size and the Default Display embedded in a
SIPROTEC 4 device is displayed. You like the outcome? In this case
you should save it and afterwards close DIGSI 4 Display Editor
without reservations.
You have completed also the logic part of our exercise successfully!
However, this does not mean that we have reached the end of the book.
38
DIGSI 4 Start Up
E50417-G1176-C152-A5
Must-Reading
Tip 1
If you have started the DIGSI 4 Display Editor for example with the
Default Display, you do not have to start it again to open the Control
Display. In the menu Display you will find commands which you can use
to open one of the two displays independently of each other.
Tip 2
If you are rather a fan of painting by numbers, then open one of the
existing templates via Display Template Open. Maybe you can
use these templates to implement your specific requirements more
quickly.
Homework
For all untiring readers we have two more little exercises. Exercise
number one: Integrate a text or graphical indications into the display
which indicates that the key switch is set to Local and not to Remote.
Exercise number two: Expand exercise 1 so that this information flashes.
For this purpose you must fall back on DIGSI 4 CFC (see Homework in
Chapter 6).
DIGSI 4 Start Up
E50417-G1176-C152-A5
39
40
DIGSI 4 Start Up
E50417-G1176-C152-A5
Working online
DANGER!
Please observe that operational equipment connected to the binary
outputs such as circuit breakers or disconnector switches can be
switched in the operating mode Online. Those carrying out operator
actions must be suitably qualified and have a good knowledge of
system conditions. Improper handling can cause death as well as
serious injury or damage to property. Therefore, for test and
training purposes use a device that is not connected with the
system.
So far we have worked in the operating mode Offline. Everything we
have accomplished within the scope of the exercise was saved to files
and is now stored somewhere on our PC. What we must do now is
transfer this data into the SIPROTEC 4 device. We will also receive
information from the device. For this purpose we will go online by
establishing a communication link between the PC and the SIPROTEC 4
device. You will see in the following that this operating mode makes a lot
more possible.
Must Reading
DIGSI 4 Start Up
E50417-G1176-C152-A5
41
Working online
It is important that the type and the design of the virtual device in
DIGSI 4 and of the real device are identical. Otherwise an error
message is bound to come up while the connection is established.
Therefore, the best idea is to insert a new SIPROTEC 4 device into your
project of the same type as the real device. During this process enter the
order number (MLFB) of the device and, thereby, determine the version
in DIGSI 4. You will find the MLFB on top of the SIPROTEC 4 device.
Contact
(S)election day
42
DIGSI 4 Start Up
E50417-G1176-C152-A5
Working online
Solution
approaches
You are probably glad that something has happened after all, although
the contents of the message does not really give you relief. Something
has gone wrong while the connection was being established. The
message also offers us hints on the possible causes.
The connecting cable is not plugged into the correct
PC port
We can verify this quickly and assume that this is not the cause.
The connecting cable is not connected to the correct
device:
As your desktop propably does not spill over with SIPROTEC 4
devices this cause also seems rather improbable at this point.
Parity or stop bit do not match:
Nor should this option apply unless you have changed the interface
default settings.
Given the present conditions, the option number 3 is the reason for the
failed connection: The device has not yet been initialized. We must admit
that we have confronted you with this error message quite deliberately to
show you the necessity of device initalization.
An identity is born
No exception
from the rule
DIGSI 4 Start Up
E50417-G1176-C152-A5
43
Working online
that? It is because the two virtual devices are not identical in every detail.
Each device must be unique in the project to be identified. Simply
speaking, a unique address is automatically assigned to each
SIPROTEC 4 device. If you create a copy of an existing virtual device,
this device automatically obtains a new address. Consequently, this
address cannot be the same as that of the real device. Everthing's clear?
Exchanging
addresses
The dialog box Initialize Device again shows you the current settings for
the PC interface (set it according to the interface you have selected), the
device interface (must be set to Front) and the frame (please leave it to
8E(ven)1 ). Close the dialog box by clicking OK. You will receive another
warning that the existing data in the SIPROTEC 4 device will be
overwritten by the initialization. If these values are not relevant for you or
if you have already saved them to files, click Yes.
44
DIGSI 4 Start Up
E50417-G1176-C152-A5
Working online
New perspectives
Threesome
DIGSI 4 Start Up
E50417-G1176-C152-A5
And now to the already mentioned online functions. Let us begin with how
to tell your SIPROTEC 4 device the time we live in. Click Device Set
Date & Time on the menu bar. The dialog box Set Date & Time in the
45
Working online
Device generally offers you two options for achieving your objective:
Either you take the easy way and take over date and time of the PC; or
you are an individualist and set both values manually. Since DIGSI 4 also
wants some say in this matter, it does not allow you to set the weekday
as you like. It is calculated automatically from the entered date.
Whichever way you choose, PC or manually, click OK to transfer the time
setting into the SIPROTEC 4. To check whether the device has really
received the time setting, press the button MENU on the SIPROTEC 4
device and go via Settings Setup/Extras Date/Time to the
display of date and time. Here you can study the result of your work.
Goal-oriented
Some parameter and
function settings cannot
be transferred to the
device individually, but
they must transferred
together with an entire
parameter set. In this
case, you are prompted
for the password for the
parameter set and not for
the single parameter.
Comparison
46
Let us now get from the menu to the operating tree. Double-click Setting.
We want to show you how you can change individual parameter settings
selectively in the SIPROTEC 4 device. For this purpose open the
Settings group A and subsequently the function Overcurrent 50/51, for
example. Change the value of any parameter. If you now closed the
dialog box by clicking OK, the modified setting would be saved
temporarily. However, this would not yet have any consequences on the
corresponding setting in the device. We want, however, to transfer the
modified setting immediately into the device. Therefore, click DIGSI ->
Device. In the following password prompting use again the default
password 000000, unless you have already changed it. Click OK and
things take their course.
The parameter setting was only changed in the device. The setting in the
parameter set, saved on your hard disk for this device, was not changed.
This happens only when you explicitly save the changed settings. To
avoid that you lose track of things after having made several changes,
DIGSI 4 features a compare function. You can use it to compare the
settings in the device parameter set with the file parameter set. Click
EditCompare Parameters. In the dialog box that display click
Deselect All and thus reduce the scope of the comparison initially to
zero. Afterwards select Settings Group A as parameter settings are to
be compared only within this area. Click Start to launch the comparison.
When the comparison is completed, the results are displayed in the box
Differences.
DIGSI 4 Start Up
E50417-G1176-C152-A5
Working online
Mission Control
In the operating tree we go now one step further down from Settings to
Control. When you open this object you will see two further objects in the
list view named Breaker switches and Tagging. The first provides
access to controlling devices, i.e. disconnector switches, ground
switches, circuit breakers, etc. The other can be used to set flags.
Remember: Flags are internal indications without any physical link with
the process. They are important for the SIPROTEC 4 device and the
control center. They may have logical connections with the process, for
example, in the form of interlock conditions. We will, however, not go into
that at this point. For detailed information please refer to the help for
DIGSI 4 Configure device.
A briefing on
indications
DIGSI 4 Start Up
E50417-G1176-C152-A5
We climb further down to the object Test. Upon opening it, we are
rewarded with three further functionalities. With Hardware Test you can
test binary inputs, binary outputs and LEDs of a SIPROTEC 4 device.
Generate Indications really lives up to our expectations. This
functionality enables all indications allocated to the system interface to be
generated manually for test purposes and to be transmitted via the
system interface. You use Test Wave Form to trigger a test fault record
which you can subsequently view or evaluate. We will explain the first
and the last of the three mentioned functionalities in more detail.
47
Working online
Input/Output
Calculation
Open the object Hardware Test and then the dialog box Test device
inputs and outputs. You use this dialog box to capture and modify the
current states of the binary inputs, binary outputs and light-emitting
diodes. This means we must get really serious at this point and make you
aware of the following dangerous situation:
DANGER!
Please observe that the change of the operating modes at the
SIPROTEC 4 device really take place. This activates equipment
connected to the relays, such as circuit-breakers or disconnector
switches. If you do not want this to happen, you need to activate the
output blocking on the SIPROTEC 4 device. To find out how to do
this, please refer to the device documentation.
The display area of the dialog box is subdivided vertically into three
groups: BI for binary inputs, BO for binary outputs LED for light-emitting
diodes. In the left-hand part, a correspondingly labelled button is
assigned to each of these groups. Double-click one of these buttons to
hide or show information on the associated group. But you are already
familiar with this behavior from the device matrix.
Hide the two groups BI and BO so that only the group of the light-emitting
diodes is left. LEDs, lighting at the connected LED, are also represented
in on-state in the dialog box. The same applies of course also vice versa,
i.e. for the LEDs in off-status. The column Scheduled contains a button
for each LED labelling the non-active state. Since you are already itching
to press one of buttons, you can do so now. Unfortunately, Digsi puts a
curb on your zest for action by another password prompt. This is,
however, only the case when you first try to open the dialog box. For the
password applies as usually: If you have not yet made changes, enter six
times zero and click OK. The command for changing the state is now
transmitted to the SIPROTEC 4 device and after a short while only the
LED changes its state on the device and also in the dialog box.
Whose fault?
48
Last but not least you may trigger a test fault record. Fault records are
normally recorded when a fault occurs. For test purposes they can,
however, be triggered manually. Simply open the object Test Fault
Record and - ooops - that was all there is to it. But where can we find the
generated test fault record? It is neatly put away! In the tree view open
the object Records and afterwards click Fault recording. The list view
now provides access to all available fault records, neatly classified
according to network fault number, fault record number, date and time.
With a double-click you can open the fault record for viewing and, under
certain circumstances, also for evaluation. But wait: This action will be
explained in the next chapter.
DIGSI 4 Start Up
E50417-G1176-C152-A5
Working online
50 ways to leave
your lover
At some point you will surely want to disconnect from the SIPROTEC 4.
Unlike Paul Simon does in his great song, we can offer only 2 ways to do
so: Either you close that particular device in the Device Configuration or
you exit the Device Configuration completely. In both cases, DIGSI
automaticall disconnects from the SIPROTEC 4 device.
And now we are entering the final lap with Chapter 9!
DIGSI 4 Start Up
E50417-G1176-C152-A5
49
Working online
50
DIGSI 4 Start Up
E50417-G1176-C152-A5
We offer you this chapter as a little extra, like the bonus track on a bestof CD so to say. And what is more, an excellent one as we will show you
what you can all do with a fault record - provided you have the right tool.
For worse...
If you (or your boss) have acquired only the basic version of DIGSI 4, you
will have to content yourself with the supplied Comtrade Viewer for
viewing fault records. Pay attention to our choice of words: We said
viewing, and this is the only action Comtrade Viewer allows (as its name
already suggests).
Autonomy
Grand Opening
Right-click the name of the fault record and select Open from the context
menu. SIGRA 4 is started and as default view displays selected
measured values as time signals. If you move the display via the vertical
scroll bar you will see analog measured and binary measured values
represented.
DIGSI 4 Start Up
E50417-G1176-C152-A5
51
Selecting
the views
Values
depend on
cursors
Handle
Cursor
Above the graphical display area you will find a kind of table. This table
displays values depending on the position of two cursors. You can see
these cursors as vertical, colored lines in the graphic display area. At its
upper end each cursor has a handle. Simply click this handle and move
it, mouse-button depressed, to and fro in horizontal direction. As you will
immediately see, the leftmost time values in the table are updated. This
is, however, about all you see since we have not yet selected any
measuring signals. We quickly do that now by availing ourselves of the
two dropdown lists. If, afterwards, you move one of the cursors, the
instantaneous and r.m.s. values of the corresponding measuring signal
are updated. If you have selected two identical physical variables, SIGRA
4 calculates also the delta between the displayed values.
52
DIGSI 4 Start Up
E50417-G1176-C152-A5
Worst-case
scenario
Imagine you have worked for hours without a break (What's bad: You are
not allowed to go home yet. Or even worse: You don't want to go home
yet!). Your hands are trembling with fatigue and you are no longer able
to adjust the cursors down to the tenth of a millisecond. Here comes the
solution: Click in one of the two cells t in ms. Now set a value by means
of the two arrow buttons or enter a value directly.
A point of view
Shared Views
DIGSI 4 Start Up
E50417-G1176-C152-A5
53
Adaptable
In the graphical display area you can see a number of curves and bars
representing analog or binary measuring signals. The number of
diagrams is set by default and contains an appropriate combination of
signals. It is of course not ideal and can be adapted to your needs in any
way you like. What options do you have for this? Well, you can add or
remove measuring signals in an individual diagram. But you can also
delete entire diagrams or complement them. We will perform the last
mentioned action first.
Use the right mouse button to select the diagram above which you want
to insert the new diagram. Select New from the context menu. An empty
diagram is inserted. Double-click the diagram to open the dialog box
Diagram properties. The box Name shows you the title SIGRA 4 has
given the new diagram. Since we will use this diagram for exercising
purposes, rename it into exercise diagram. Select the checkbox Name,
to have the diagram name displayed.
Matrix II
54
DIGSI 4 Start Up
E50417-G1176-C152-A5
The basic operation is identical to the device matrix. Rows and columns
are maximized or minimized by double-clicking the corresponding button.
If the exercise diagram was already selected before we have opened the
signal matrix, the column belonging to this diagram is already maximized.
Assigning signals to a diagram is even easier than in the device matrix.
Since there are only the two states available, i.e. assigned or not
assigned, a click in the cell suffices to bring about the other state. You
can display any analog signals, impedances, symmetrical components
and power within one and the same diagram. However, these signal
types cannot be represented together with binary signals or status
signals in a common diagram. This rule is automatically controlled by
SIGRA 4 and prevents faulty inputs. Don't hesitate to give your creativity
free rein and assign any signal to the exercise diagram. Click also the
button F on the left border of a signal name. This action opens a dialog
box which enables you to change the display of a signal in a diagram.
Attention
By the way: Closing the signal matrix by clicking Cancel or the x in the
upper right corner results in the loss of all changes you have made unless
you have clicked Apply previously. To hand your work down to posterity,
therefore close the signal matrix always by clicking OK.
Syn-Crowning
DIGSI 4 Start Up
E50417-G1176-C152-A5
55
not just mean open a second fault record in a new window. That goes
without saying. Rather, you add the signals of another fault record to the
current signals. This offers you the excellent opportunity of displaying
signals from different fault records in one diagram - and, what is more,
synchronize them on a common time basis!
Thus we first add a fault record. For this purpose we use the second
demo fault record, named Line 2, supplied together with SIGRA 4. Click
Insert Fault Record on the menu bar and select the mentioned fault
record. The measuring signals of the second fault record are displayed
after the signals of the first fault record. For you not to loose track of
things, the individual fault record signals are numbered from K1 to Kn.
Next you insert a new diagram as you have learned. Also you know
already how to assign signals to this diagram, i.e. by means of the signal
matrix. Select K1:UL1E and K2:UL1E_1 as signals. When you do that,
change also the line color of one of the two signals. (A little tip: Click the
button F.) In the newly added diagram you can see the curves of the two
voltages. These two curves must now be synchronized to each other. For
this purpose, select a signal curve and a synchronization time with each
of the two cursors. Click Edit Synchronize fault records on the menu
bar. The dialog box Synchronize fault records enables you to verify the
two selected times and to correct them, if necessary, via numerical entry.
If everything is all right, click OK. The two signal curves are now
synchronized and can be compared easily. In the figure you can see an
example of two synchronized curves.
Buy, buy
56
So, that was it with our startup manual for DIGSI 4. We would be glad to
hear from you, for example whether you have liked it or not. See you,
your DIGSI 4 team.
DIGSI 4 Start Up
E50417-G1176-C152-A5
10
Review
Wait a second, we nearly forgot one thing: Below you will find a compact
flow chart giving a little review of what you have accomplished. You can
also use it as guideline for future projects.
Manager
Configuring a Power
Distribution Structure
Device Configuration
Setting protection
functions
Device Configuration
Allocating
information items
CFC Editor
Creating
logic functions
Display Editor
Device Configuration
Working
online
SIGRA
Evaluating
fault records
DIGSI 4 Start Up
E50417-G1176-C152-A5
57
Review
58
DIGSI 4 Start Up
E50417-G1176-C152-A5