Technical Manual: Pavone Sistemi
Technical Manual: Pavone Sistemi
Technical Manual: Pavone Sistemi
TECHNICAL MANUAL
WARNINGS.................................................................................................Page 2
INTRODUCTION ..........................................................................................Page 3
INSTALLATION .............................................................................................Page 5
DISPLAY INDICATIONS..................................................................................Page 9
SET-UP .........................................................................................................Page 12
TROUBLESHOOTING ...................................................................................Page 28
Rel ID 173904 Sw. 0.9
Page 1
WARNINGS
READ this manual BEFORE operating or servicing on the instrument.
FOLLOW these instructions carefully.
SAVE this manual for future use.
CAUTION
The installation and maintenance of this instrument must be allowed
to qualified personnel only.
Be careful when you perform inspections, testing and adjustment
with the instrument swithced on.
Failure to observe these precautions may be dangerous.
DO NOT allow untrained personnel to work, clean, inspect, repair
or tamper with this instrument.
Page 2
INTRODUCTION
The DAT 200 is a weight transmitter to be matched to the load cells to detect the weight in every situation.
The module is easy to install and can be mounted on 35 mm DIN rail.
The display allows easy reading of the weight, the configuration parameters and errors.
The 3 keys located below the display and protected by the front door allow the Operator to perform
the functions of ZERO and CALIBRATION as well as datasheet and real calibration.
The DAT 200 use RS232 serial port with ASCII and Modbus RTU protocols to be connected to PC, PLC
and remote units.
The presence of the most common fieldbus, also allows interfacing the transmitter with any supervision
device currently offered by the market.
Fieldbus available:
PROFIBUS
PROFINET
DEVICENET
PAVONE SISTEMI
It’s important to communicate this data, in the event of a request for information. The software
number and release number are shown on the cover of the manual and also displayed when
the instrument is switched on.
WARNINGS
The following procedures must be performed by qualified personnel.
All connections must be performed when the instrument is switched
off.
Page 3
TECHNICAL FEATURES
Power supply 24 Vdc ±10% protected against reverse polarity.
Protection with resettable fuse.
Max. absorption 2W
Isolation Class II
Operating temperature -10°C ÷ +50°C (max. humidity 85% non-condensing)
Storage temperature -20°C ÷ +60°C
Weight display Numerical with 5 red led digits and 7 segments (h 7
mm)
Led 2 LEDs of 3 mm
Keyboards 3 mechanical keys (behind the red front door)
Overall dimensions 112 x 119 x 35 mm (l x h x w), including terminal
boards.
Installation Brackets for DIN section or OMEGA bar
Material Self-extinguishing Blend PC/ABS
Connections Removable terminal boards with screws, pitch 5.08
mm
Input of the load cells with following features max. 4 of 350 Ω in parallel (or 8 cells of 700 Ω).
Load cell excitation 4 Vdc
Linearity <0.01% of the full scale
Temperature drift <0.001% of the full scale / °C
Internal resolution 24 bit
Measuring range -3.9 ÷ +3.9 mV/V
Digital filter To be selected from 0.2 Hz to 25 Hz
Number of decimals weight 0 ÷ 4 decimal places
Calibration of zero and full scale From the buttons.
Check of load cell cable interruption Always present
Page 4
INSTALLATION
GENERAL INFORMATION
The DAT 200 consists of a motherboard, to which are added the options available, accommo-
dated in a plastic enclosure for DIN rail 35mm.
The DAT 200 should not be immersed in water, subjected to jets of water and cleaned
or washed with solvents.
Do not expose to heat or direct sunlight.
OVERALL DIMENSIONS
101
112
119 35
ELECTRIC INSTALLATION
DAT 200 is equipped with removable screw, pitch 5.08 mm.
The load cell cable must be shielded and channeled away from power cables to pre-
vent electromagnetic interferences.
17 18 19 20 21 22 23 24
The instrument is powered through the terminals 23 and 24. The
power supply cable must be channeled separately from other cables.
The internal circuit is galvanically isolated from the supply voltage.
+24 Vdc
0V
Page 5
LOAD CELL CONNECTIONS
The cable of the load cell (or load cells) should not be channeled
with other cables, but has to follow its own path.
The instrument can be connected up to maximum 4 load cells of 350
ohm in parallel. The supply voltage of the load cells is 4 Vdc and is
protected by temporary short circuit.
The measuring range of the instrument involves the use of load cells
with a sensitivity of up to 3.9 mV/V.
The cable of the load cells must be connected to terminals 2-7 of
the 7-pin removable terminal board. In the case of 4-wire load cell
SENSE+
SENSE-
SHIELD
EXC+
SIG+
EXC-
SIG-
+EXC 6 3 EXC+
SHD 7 1 SHD
+EXC 1 +EXC
-EXC 2 -EXC
+SGN 3 +SGN
-SGN 4 -SGN
SHD 5 SHD
+EXC 1 +EXC
FIELDBUS
-EXC 2 -EXC
25 PIN CONNECTOR
+24V
+SGN 3 +SGN
-SGN 4 -SGN 23 +VDC
24 VDC 2W
SHD 5 SHD 24 GND
+EXC 1 +EXC
-EXC 2 -EXC
+SGN 3 +SGN
-SGN 4 -SGN
SHD 5 SHD
SERIAL COMMUNICATION
RS232:
The RS232 serial port is always present and can handle several
protocols.
To achieve the serial connection use a suitable shielded cable and
S.GND
SHIELD
RXD
TXD
make sure to ground the screen at one of the two ends: to pin 13,
if attached on the side of the instrument, to the ground, if connected
on the other side.
The cable must not be channeled with power cables, maximum
16 15 14 13 12 11 10 9 8 7 6 5 length
4 3 2 of
1 15 meters (EIA RS-232-C), beyond which you should take
Page 6
FIELDBUS CONNECTION
PROFIBUS DP:
Pin Signal Description
1 - -
2 - -
3 B line +RxD/+TxD, level RS485
4 RTS Request to send 6 9
8 A_LINE
6 +5V BUS
5 GND BUS
4 RTS
3 B_LINE
7 - -
8 A line -RxD/-TxD, level RS485
9 - -
Housing Cable shield Internally connected to protective
earth according to Profibus
specification
For connection to the Profibus Master, use a standard Profibus cable.
For a reliable operation of the Fieldbus, should be used a line ter-
mination at both ends.
In the case of multiple DAT 200 instruments, use the line termination
at only one instrument.
For configuring the instrument, the GSD file is available (hms_1810.
GSD) that must be installed in the master.
Page 7
FRONT PANEL
The DAT 200 transmitter has a front door that protects the 5 digits display, the 2 status LEDs and the
three front keys.
In operating mode the display shows the weight and the LEDs indicate the status of weight (net-gross).
The set-up parameters are easily accessible and can be changed through the use of the three front keys
used to select, edit, confirm and save the new settings.
DISPLAY
On the 5 digits display the lowest digit indicates the least significant digit.
Normally, the display shows the measured weight. During set-up procedure,
the display shows the sequence of the parameters and theyr values, that allow
the operator to set the instrument.
LED INDICATORS
In the upper part of the display there are two LED indicators:
LED 1 (on = net weight, off = gross weight, flashing = peak)
LED 2 (on = tare entered, off = no tare)
In bar-graph view, both LEDs are flashing.
t Short press: Sending the data to the serial line (if the manual protocol was selected)
Long press: Set point programming (DAT 200/A)
u Access its submenu, or access the set up or confirms the selected parameter.
Page 8
DISPLAY INFO
When the instrument is switched ON the test-display is performed. In sequence there are: software
code, software version and hardware version.
P r
J E
3 J
0 0
2 1
It’s important to communicate these data in the event of a request for assistance.
ERRORS NOTIFICATION
In the operating mode, the display can report the following error codes.
- n E N E
0 o f - r
- C b C N
L A U O E
L S N N
- Overload: The weight applied to the load cell exceeds by more than 9 divisions the maximum
capacity of the weighing system.
O-L O-L : No signal from the load cells or outside of the field of measurement mV/V.
noCAL NOCAL: Transmitter not calibrated. Recalibration needed.
Efbus EFBUS: Fieldbus interface absent or not working.
n-coN N-COM: Fieldbus interface of the instrument is not connected to the network.
E-CrC E-CRC: CRC error during communication with the fieldbus interface of the instrument.
ErNEN ERMEM: Error in E2PROM. You can reprogram the instrument to the factory settings, erasing
any calibration by pressing u key.
Page 9
VIEWING, ZEROING THE WEIGHT AND AUTO TARE
When the instrument is switched ON, the display shows the current net weight.
8 3 Press the key s to toggle between the net weight to gross weight
and vice versa. The value displayed is reported by the LED 1 (lit:
3 5 net weight). If you have not entered the tare, the net weight is equal
6 2 to the gross weight.
5 0 In case of negative weight, it is displayed the minus sign before the
☞ ▲◆ ▲
◆
most significant digit. In case of negative weight greater than 9999,
▼ ▼ the minus sign is displayed alternatively with the most significant digit.
The gross weight reset command does not run under the following
conditions:
3 sec. ▲ ▲ Unstable weight.
☞ ◆
▼
◆
▼ Gross weight greater (positive or negative) than the 0BAND value set.
If you previously performed the autotare function, this is automatically
delayed. When the instrument is switched off, it is restored the value
of Zero made during calibration.
AUTOMATIC TARE
To perform the auto-tare function, it is necessary to switch the display
to Net weight (LED 1 on).
Press u key for 3 seconds to to perform Autotare function. Led 2
switched on. The automatic tare command does not run under the
1 following conditions:
6 Unstable weight.
2 Negative gross weight.
5 0 Gross weight greater than the maximum capacity.
3 sec. ▲ ▲
☞ ◆ ◆ If the automatic tare is performed with gross weight = 0, the display
▼ ▼ shows again gross weight (Led 1 switched off).
Page 10
PEAK FUNCTION
The peak is related to the gross weight and is always calculated, ✹
even when it is not displayed. When you see the peak, the top LED
flashes. 3 3
To store the value press s key for 3 seconds. To go back to weight 7 7
display press s key for 3 seconds. To reset the peak value press u 4 4
key for 3 seconds. 3 sec.
6 6
The calculated peak is not retained at power off. ☞ ▲◆ ▲
◆
3 sec. Back
▼ ▼
Page 11
SET UP
GENERAL INFO
All functions of the DAT 200 can be and amended through a simple setup menu, shown on the next
page. All the settings activated or selected are stored even after switching off the transmitter.
The DAT 200 is factory set. See the “default” parameters on the following pages.
At the first installation in the field some parameters need to be amended to obtain a correct indication
of the displayed weight (datasheet adjustment).
This procedure may be required when you purchase the DAT 200.
The settings of the setup menu can be changed using the three front buttons.
To access the setup menu press simultaneously for 3 seconds u and t keys.
The display shows the message ConfG which is the first of the main menus.
The parameters of the menu can take selectable values and numerical value.
s key. Increment the flashing digit, select the next alternative value, goes back to the higher level
or exits the setup menu.
u key. Select the next digit, confirm the setting of the selected parameter, access the set up para-
meters and access the set up submenu.
t key. Decrement the flashing digit, select the previous alternative value.
NB. To exit and save the changed data, press the s button until the indicator returns to the operating
mode.
Page 12
Page 13
FLOW CHART MENU
ConfG
▼
▲▼
▲▼
▲▼
▲▼
SEr
▲▼
▲▼
▲▼
▲▼
▲
◆
▼
▲▼
▲▼
▲▼
▲▼
▲▼
▲▼
▲
◆
▼
CAL1b CAL
▲▼
Used to Perform Calibration
▲
◆
▼
ConFG CapaC sEnst dspdJ s1GnL
▲▼
▲▼
▲▼
▲▼
▲
◆
Normal View
▼
◆
☞
3 sec.
CONFIGURATION PARAMETERS
Through the setting of the parameters listed below, the DAT 200 Full Scale datasheet calibration is
performed. You must complete these steps with the zero calibration described on the next page. The
procedure ensures, in the absence of mechanical problems, a good accuracy of the system (maximum
error <1% FS).
ConFG
CaL1b
▲ ▲ ▲
It defines the value corresponding to the sum of the rated capacity of the
load cells. In case of single load cell systems and “N” fixed supports,
enter the capacity value of the load cell for the total number of sup-
▼ ▼ ports. This figure represents the full scale value of the weighing system.
◆ Following the change of the parameter value, the datasheet calibra-
CapaC
tion is recalculated.
Values: from 0.5000 to 4.0000 mV/V
◆ Select Value ◆
Default: 2.0000
The ratio between the maximum capacity of the system and the
.
0378
Page 14
CALIB - CALIBRATION
The calibration method below, is used to correct or reduce the linearity error of the weighing system.
The calibration should be performed with the use of sample weight or pre-weighed product on a sample
weighing system.
Before proceeding with the calibration of the full scale, always perform the zero calibration.
During the calibration phase, the display shows the weight intermittently with the inscription CAL.
ATTENTION: at power off without exiting the set-up menu, the programming executed are not stored.
NB In the event that after calibration the system has linearity errors, verify that the structure weighed is
completely free from mechanical constraints.
ZERO CALIBRATION
Perform the operation when the system is empty (including the fixed
ConFG
CALIb
PAraN
▲ ▲ ▲
tare) and the weight is stable. The zero of the system is done by pres-
sing the t key. The display shows 2-Ok confirming the operation.
The weight displayed resets and the display shows CAL alternated ▼ ▼
by 0. It is possible to repeat this operation more times.
CAL
2-oh
CALIBRATION OF FULL SCALE
35
◆ ▼
Prior F.S. calibration load the sample weight on the system and wait
for the stabilization; the display shows a weight value.
Press the s key to adjust the weight. The display shows 00000 with
CAL
the first digit flashing.
Use the s or t keys, enter the weight value starting with the first ◆
digit flashing. Switch to the next digit by pressing u . The confir- 0
mation of the last digit performs the correction of the weight. The Load Weight
CAL
19982
CAL
30000
The display shows CALIb. To store the new setting and exit the setup
menu, press the s key. ◆
Page 15
PARAM - WEIGHING PARAMETERS
The parameters in this menu allow to adjust the timing of the acquisition and updating of the display
and the manual or automatic zeroing that the transmitter performs.
PAraN
SEr
▲ ▲ ▲
This parameter adjusts the refresh speed of the display and the
analog output.
Low values of the filter speed up the display refresh.
▼ ▼
◆ High values of the filter slow down the display refresh.
F1Lt
4 16 Hz 2.5 Hz
5 12 Hz 1.5 Hz
◆ Select Value ◆ 6 10 Hz 1 Hz
7 8 Hz 0.7 Hz
▲▼ 8 6 Hz 0.4 Hz
Aut-O
9 4 Hz 0.2 Hz
Default: 5
◆ Enter Value ◆
stab WEIGHT STABILITY
▲▼ Value Change
Oband
Default: 2
Page 16
Otrac TRACKING THE ZERO
This function allows a momentary zero calibration compensating the
eventual temperature drift of the weight.
At power off it automatically returns to the previous calibration.
The maximum weight resettable by this parameter is 2% of the range
of the system.
To disable this feature, use the value 0.
Value Change
0 Control OFF
1 0.5 div/sec
2 1 div/sec
3 2 div/sec
4 3 div/sec
Default: 0
Page 17
SER - SETTING THE SERIAL COMMUNICATION PORTS
SEr
INoUt
▲ ▲ ▲
It defines the RS232 serial port baudrate.
The value must be set to the same value of the PC / PLC or remote
display.
▼ ▼
◆ Selectable Values:
bAudr
2400
4800
◆ Select Value ◆ 9600
19200
▲▼ 38400
CoN1
57600
115200
◆ Select Value ◆ Default: 9600
Selectable Values:
None
◆ Select Value ◆
Contn
Deman
▲▼
Autom
dELay
Slave
◆ Enter Value ◆ Modbs
Default: Modbs
▲▼
Page 18
dr
▲▼
CoN1
frANE COM1 DATA FORMAT
◆ Select Value ◆
It defines the data format of the RS232 serial port.
The value must be set to the same value of the PC / PLC or remote ▲▼
FraNE
display.
In the case of MODBUS or SLAVE protocol, selections of the 7-bit data
formats (E-7-1 and O-7-1) are not accepted (error message “nVaLId”). ◆ Select Value ◆
Selectable Values:
N-8-1 ▲▼
CoN2
N-8-2
E-8-1
◆ Select Value ◆
O-8-1
E-7-1
▲▼
0-7-1
AdPrF
Default: N-8-1
NodE
Selectable Values:
None ◆ Select Value ◆
ProFb
Default: ProFb ▲▼
dELay
AdPrF ADDRES PROFIBUS
Setting the PROFIBUS address. The communication speed is auto- ◆ Enter Value ◆
matically configured
Values: from 1 to 126: ▲▼
Default: 000
Page 19
SERIAL COMMUNICATION PROTOCOLS
Where
STX (start of text) = 0x02h
ETX (end of text) = 0x03h
EOT (end of transmission) = 0x04.
<state> = character encoded as per the following table (bit = 1 if condition TRUE)
<weight> = field consisting of 8 ASCII characters with the weight value justified on the right. (without
leading zeros, with possible decimal point and negative sign).
The weight value transmitted can be the net weight, the gross weight or the peak value based on the
selection of the transmitted data (MODE parameter) in the setting menu of the serial communication
ports (see relevant paragraph).
Under conditions of overload, the weight field assumes the value: “^^^^^^^^”.
Under conditions of underload (negative weight greater than 99999), the weight field assumes the
value: “_ _ _ _ _ _ _ _”.
In reading error conditions, the weight field assumes the value: “ O-L ”.
<csum> = checksum of the string data. It is calculated by performing the exclusive OR (XOR) of all
characters from STX (or from <ind>) to ETX excluded the latter; the result of the XOR is decomposed
into 2 characters by considering separately the upper 4 bits (first character) and lower 4 bits (second
character); the 2 characters obtained are then ASCII encoded (example: XOR = 5Dh; <csum> = “5Dh”
namely 35h and 44h).
In the case of continuous communication protocol, the given string is transmitted at a frequency of 10
Hz, regardless of the weight filter selected.
In the case of automatic and manual communication protocols, between 2 consecutive weight transmis-
sions, they must undergo a corresponding change to the value set in DELTA parameter, in the setup
menu of weighing parameters (see relevant paragraph).
Page 20
• Peak value reset command.
The unit connected to the instrument (typically a personal computer) acts as a MASTER and is the only
unit that can start a process of communication.
The process of communication must be made by the transmission of a string by the MASTER, followed
by a reply from the SLAVE concerned.
FIELDS DESCRIPTION
The double quotes enclose constant characters (observe upper and lower case); the <and> symbols
contain variable numeric fields.
STX (start of text) = 0x02h,
ETX (end of text) = 0x03h,
EOT (end of transmission) = 0x04h,
ACK (acknoledgment) = 0x06h,
NAK (No acknoledgment) = 0x15h.
<Addr> = Serial communication address + 0x80h (i.e., address 2: <Addr> = 0x82h (130 decimal
number)).
<status> = character encoded as per the following table (bit = 1 if condition TRUE)
Page 21
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Tare en- Zero Stable Zero cen-
0 0 1 1
tered band weight ter
<gross>, <net>, <peak> = field consisting of 8 ASCII characters with the weight value justified on the
right (no leading zeros, with possible decimal point and negative sign).
Under conditions of overload, the weight field assumes the value: “^^^^^^^^”.
Under conditions of underload, the weight field assumes the value: “_ _ _ _ _ _ _ _”.
In reading error conditions, the weight field assumes the value: “ O-L ”.
<csum> = checksum of the string data. It is calculated performing the exclusive OR (XOR) of all cha-
racters from STX (or from <ind>) to ETX excluded the latter; the result of the XOR is decomposed into 2
characters considering separately the upper 4 bits (first character) and lower 4 bits (second character);
the 2 characters obtained are then ASCII encoded (example: XOR = 5Dh; <csum> = “5Dh” namely
35h and 44h).
Page 22
MODBUS RTU PROTOCOL
WARNINGS: The addresses listed in the tables below follow the standard routing specified in the
reference guidelines of the Modicon PI-MBUS-300 Rev.J (www.modbus.org), referred to below is an
excerpt that helps the user to communicate with the instrument.
“All data addresses in Modbus messages are referenced to zero. The first occurrence of a data item is
addressed as item number zero. For example:
The coil known as ‘coil 1’ in a programmable controller is addressed as coil 0000 in the data
address field of a Modbus message.
Coil 127 decimal is addressed as coil 007E hex (126 decimal).
Holding register 40001 is addressed as register 0000 in the data address field of the message. The
function code field already specifies a ‘holding register’ operation. Therefore the ‘4XXXX’ reference
is implicit.”
The values of the registers with address greater than 40100 are permanently stored in memory only
after the data save command (see Command Register table). If this function is not performed by turning
off the instrument, it will return to the value before the change.
If not otherwise specified, the numerical values (such as addresses, codes and data) are expressed as
decimal values.
Code Description
1 ILLEGAL FUNCTION (The function is not valid or not supported)
2 ILLEGAL DATA ADDRESS (The address of the specified data is not available)
3 ILLEGAL DATA VALUE (The received data have invalid value)
SUPPORTED FUNCTIONS
FUN 03 READ HOLDING REGISTER
FUN 06 WRITE SINGLE REGISTER
FUN 16 WRITE MULTIPLE REGISTERS
Page 23
LIST OF THE MODBUS PROTOCOL HOLDING REGISTERS
BIT 15 14 13 12 11 10 9 8
Description - - - - - - - -
BIT 7 6 5 4 3 2 1 0
Wrong Tare Stable Zero
Description - Over-load Under-load Zero band
weight entered weight center
Page 24
COMMAND REGISTER CODING TABLE FOR MODBUS PROTOCOL
Register value 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Division value 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 20 50
Page 25
PROFIBUS PROTOCOLS
The data exchange with Fieldbus is done on two separate areas of memory, described in the tables
below.
The “Input Data Area” is 38 bytes (register from 1 to 19) and the “Output Data Area” is 30 bytes
(register from 1 to 15).
The addresses from 0x0001 to 0x0009 are always written in the input area with a frequency of 25 Hz.
The addresses from 0x000A to 0x0013 are written in the input area at switch on, or if one of these
parameters is modified.
Page 26
OUTPUT DATA AREA
The value in the data register must be entered when the command register is programmed.
Example of full scale calibration: The sample weight to be set must be equal to the value that you want
to calibrate, taking into account also the decimals. For instance, if you have 30 kg scales with a 0.02
division value and if you want to perform a 15 kg calibration in sample weight, you need to put 1500
(0x05DC), that correspond to 15.00 kg.
Page 27
TROUBLESHOOTING
Page 28
EU Declaration of conformity (DoC)
We
The object of the declaration described above used as indicated in the installation manual and use, is
in conformity with the relevant Union harmonisation legislation:
The following harmonized standards and technical specification have been applied:
EN 61000-6-2:2005
EN 61000-6-3:2007 + A1 2011
The following harmonized standards and technical specification have been applied:
EN 61010-1:2011
Page 29
PAVONE SISTEMI S.R.L.
Via Tiberio Bianchi 11/13/15, 20863 Concorezzo (MB), ITALY
T 0039 039 9162656 F 0039 039 9162675 W en.pavonesistemi.it
Industrial Electronic Weighing Systems since 1963