JPS5995612A - Control state display system - Google Patents

Abstract

PURPOSE:To grasp speedily and easily the current control state and control states before and after it by displaying a control sequence in a two-dimensional diagram, and inverting the black-and-white relation of parts in the diagram before and after the current time. CONSTITUTION:When actual control operation is performed, the control sequence is specified on a keyboard 3 firstly. An MPU1 reads data on this control sequence out of a data memory 4 to generate and display the pattern, etc., of the control sequence on a diagram display device 6, and then displays the completion of preparations on the device 6. The MPU1 after starting the actual control operation sets data corresponding to an elapsed time up to now, i.e. a column address corresponding to the current time on the time axis on the screen in a latch circuit 16 at specific intervals of time. Then, the output of a comparing circuit 14 is in an on state while the column address indicated by a column address signal outputted from a counter 12 is smaller than said column address, and a black/white inverting circuit 22 performs black/white inversion.

Description

[Detailed Description of the Invention] The UAFi of the present invention is a heat treatment furnace! Adjustment needles used for degree control, etc., are controlled according to a preset control sequence #! The present invention relates to equipment for controlling pipes, and in particular to a method for displaying the control status in equipment such as a pipe.

For example, as a device of the type C, Japanese Patent Application Laid-Open No. 56-11190
There is a program setting device shown in No. 3 and Japanese Unexamined Patent Publication No. 56-111904. When operating a device like Jin, it is important to check how the current control state is a trap, and whether the control state is a preset control sequence (control pattern).
In some cases, it may be helpful to know where it is located on the top. As a method to achieve this purpose, for example, as disclosed in the Publication No. 4, the step number of the control sequence currently being executed, the control parameter tube light emitting element selected at that time, etc. It is also valid to indicate C. In addition, the elapsed time from the start of control) II to the present is displayed numerically, and the current control status a can be estimated from the elapsed time and the control sequence diagram (table).
It is necessary to prepare a table), and it takes some time to understand the current control state by associating it with the control sequence, which is inconvenient in an emergency. Easy cape, there is room for improvement.

Therefore, it is an object of the present invention to provide a device for controlling a CflilJ lifting object according to a preset control sequence, in which the zero operation time and the control states before and after that can be directly read in correspondence with the control sequence. The purpose of the present invention is to provide a control status display method that can solve all problems.

The ff1lJ status Il1 display method of the present invention is as follows:
A two-dimensional figure is displayed on the screen of a figure display device in association with the control sequence time, and the black-and-white relationship is reversed between the part before the current time and the part after the current time. However, this only applies to black and white display, and generally the relationship between the density or color of the lines of the displayed figure and the margins is reversed as described above.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

1ryJ is a block diagram of a control device according to the present invention.

In the figure, 1 is a microprocessor (MPU). Reference numeral 2 denotes an input control circuit, through which data input from the keyboard 3 and feedback No. 16 from a controlled object (not shown) are taken into the MPUIK. 4 is a nonvolatile data memory, and the MPU 1 stores input data from the keyboard 3 (control sequence d (constant data, etc.),
Other data to be saved is stored in this data memory 4.

The program for MPU 1 is stored in a fixed memory (not shown). Reference numeral 5 denotes an operating circuit, which outputs tube 1δ for operating the controlled object according to data given from j and MpUl. If the delay time of the μm1 controlled object is unreasonable, the output No. 16 of the operating circuit 5 or No. 16 related thereto may be used as the feedback signal.

Reference numeral 6 denotes a graphic display device using a liquid crystal display panel, and the display will be described later.

An analysis of the operation of C's writing device is as follows.

First, when setting a control sequence, the operator inputs a command to that effect from the keyboard 3. When the command C is completed, the MPU 1 starts a control sequence setting program and displays the input data items on the tube graphic display device [6]. The operator selects the keyboard 3 according to the displayed content.
When more necessary numerical data is input, the MPU 1 sequentially stores the input data in the data memory 4 while generating a control sequence pattern according to the input data and displaying it on the graphic display device 6.

As shown in C, the operator displays the display contents t&1. 'In the desired control sequence t-set.

To execute an actual control operation, first, a control sequence is entered from the keyboard 3. The MPU 1 reads the data of the control sequence determined in 18 from the data memory 4, generates a turn of the control sequence, etc., and displays it on the graphic display device 6, and when it is completed, the graphic display device indicates that preparation is complete. Display on 6. After that, wake up from keyboard 3!
When the II command is input, the MPU 1 activates the control II tactile log system, calculates the deviation tη between the target value at each point determined by the control resistance and the value of return fi(+!!), and calculates the deviation tη. The operation circuit 5 is controlled so that the maximum /j% is achieved.From this point on, the control state according to the present invention is displayed on the graphic display device 66, which will be explained below.

FIG. 2 is a block diagram of the 1g type display device 6.

It is composed of 12 is a counter that changes its body Vb based on the clock that can be supplied from the MPUI. 0 LCD display panel 1
The row/column address No. 16 for the rask eclipse of 1 is generated by this counter 12, and the liquid crystal display)
13. Further, column address No. 16 can also be input to the comparison circuit 14.

15.16 are latch circuits connected to the data node of MPU1, and the contents held in these latch circuits 15.1B are manually input to the control circuit P?S13 and the comparison circuit 14, respectively.1F and Ill are randomly selected. Access memo!J (RAM
), which is omitted by the control circuit 13. 19
Fixed memo +7 (ROM) for generating 4 turns, such as Fi characters and symbols.

20 is an OR circuit, ROMI 9 and R/, Mlll
The output data (bit parallel) is converted into the 11th logic. 21 is a parallel/serial conversion circuit (for example, a shift register) that converts the output data of the OR circuit 20 into bit serial data. Parallel/serial variation of C ("Each circuit 21 (1) 91 data is inputted to the liquid crystal display panel 11 as a video 14 via, for example, white/black anti-beast +91 path 22. White/#3 inversion of C The circuit 22 calculates the input data r I J (/, v
)1marlJ and L'C1rOJ (white) are "Oj and °[
It can be used as is, but when output No. 16 of the comparator circuit 14 is on, input data "1" and "0" are
It is inverted and output to OJ and rIJ.

The details of the controls 1+i of each part are omitted from the figure.

A stone that explains the next VC display operation.

Before the start of the i91 work, the MPUj inputs control sequences and other pattern data for displaying the liquid crystal display panel ILK to RhyIB, and also data for generating character and symbol pattern 1 (ROM 19). Address) omit it to kRhy1γ. Pruning of these data is performed by control ILIJ path 13. That is, CPU1
The transfer control circuit 13, which is included in the transfer mode 't' via the data bus and the latch circuit 15, receives the data 't-, 1I-J transferred from the MPU 1 to the latch circuit 15.
<38 with the address data transferred to the latch circuit 15
V# is stored in the specified address of RAM11 or #i18.

When the imprinting of the data necessary for R*MITs 1B is completed in this way, the MPU 1 switches to the control circuit 13tl- read mode through the second fIil11 path 15t-, and also resets the latch circuit 16. When switching to the read mode, the control circuit 13 selects the RAM 251 with the row/column address 1d supplied from the counter 12.
17.18 while addressing the same uAM17. I8
access continuously. yltBL of RAM 17, data is given to Roy 19e) 7 dot 1/,
On the other hand, from RAM1g, the control sequence and time! Dot pattern data such as the I-axis is used for the bit sequence I/C. These two dot pattern data are ORed (OR 11, 20''), converted into bit serial data by a parallel/serial conversion circuit 21, and then sent to a white/black inversion circuit 22.
The signal is sent to the liquid crystal display panel 11 via , and displayed.

At time C, since the latch circuit 16t is 7)-J, the output of the comparator circuit 14 is in the OFF state over the entire running distance M of the relay crystal display panel 11, and the white/silent inversion circuit 22 is in the black and white state. Do not perform inversion. An example of the screen display of the liquid crystal display panel 110 at the time of C is shown in FIG. 1, At is a control sequence pattern, B is a time axis pattern with elapsed time scaled, and C is a pattern in which control (for example, temperature) is confused. C our putter/ASB
, Cj are displayed as r JA J over the entire area, and the margins are displayed in "white". Generally, numbers, letters, and other symbols indicating the scale units of the pattern BSO are also displayed, but the middle characters are omitted to avoid a complicated formula.

'5A, since the simulation was started, data corresponding to the elapsed time up to Mpult and tfJl's presence during a certain period of time R, S, ie, ii1! The column address corresponding to the current time on the time axis of iM1 is set in the latch N16 through the entire data bus. During the period when the column address indicated by the column address No. 1- that can be output from the counter 12 is smaller than the 9th column address set in the latch circuit 16, the output of the comparison circuit 14 is in the ON state. A white/focus inversion circuit 22 performs white/focus inversion.

Therefore, the display on the liquid crystal display panel 11 is as shown in FIG. 4, for example. That is, in the area on the n side of the column address position corresponding to the time of the boundary, patterns A and B are displayed as "white" on a black background, and the black and white relationship with the area on the right is reversed. Become. The boundary position of black and white reversal gradually moves to the right in the figure as time passes. In this way, 1llI1
11! Since the pattern of the entire sequence can be displayed by inverting the white lines before and after the current time, the relationship between the current, previous and subsequent control states and the control sequence is obvious at a glance.

Figure 5 shows another example of screen display.

In this meeting, multiple relays are set at a constant full speed over time.
? +111 sequence, turn on/me7, etc. ~j combination, the pattern indicated by the sign is 11t! 1
These patterns as a whole represent an Ibll cape sequence. B is the pattern of the previous example and the four pillars of Ichimasuke, and E is the pattern of letters etc. that drink each relay etc. In the example of C, since the column address position that corresponds to the current time is displayed as a border, the black-and-white relation 7 is grayed out, so the full color of the previous 1st skin and the 8th river are displayed. 13 with cape sequence
'J Section - Can be read directly.

In this embodiment, a white dot is displayed on the liquid 11+'l public display panel 11, but a graphic display may be performed using green shading (light and dark), for example. , the display controls are the same as for black and white display. It is also possible to use a display panel that displays figures in two colors, and in that case, instead of the white/p, % inversion circuit 22, a circuit fft that can invert the color relationship.
- may be set and controlled by the output of the comparison circuit 14.

Although the -yH example has been explained up to C\, the present invention cannot be used to achieve the 4f' of the central ship example.

For example, other devices capable of displaying graphics may be used, such as a 1-type display device or a 1-plus 1 display panel. The circuit configuration of the graphic display device is also a must! Various changes may be made depending on the situation. This also applies to the overall configuration of the device 6 to which the present invention is applied.

As described in detail above, the present invention displays a control sequence as a two-dimensional figure, and the part before the current time and the part after the current time of the same figure are reversed to have a black-and-white relationship (density or color relationship is not controlled). ), the operation time and its previous control state can be directly read from the display screen, and the current and previous state can be quickly and easily read. It has many effects, such as being able to understand information and reducing the risk of misrecognition.
be qed.

[Brief explanation of drawings]

Figure m1 is a schematic block diagram showing one embodiment of the present invention;
The figure is a detailed block diagram of the graphic display device in the same example.
5 through 5 are display examples showing one threshold. 111...i microprocessor (MPU), 6.e.graphic display device, 11...liquid crystal display panel, 12...
φ counter, 13...control circuit, 14-...comparison circuit, 15.16...latch circuit, 17,1
11.e. Random access memory (RAM), 1
9...16] Constant memory (ROM), 20... Mair circuit, 21... Parallel/1! , sequence order circuit, 22
@・Mental white/silence reversal circuit.

Claims (1)

[Claims] In a device that controls a controlled object according to a preset control sequence, the control 1 is displayed on the screen of a graphic display device.
One sequence is displayed as a two-dimensional figure in correspondence with the elapsed time, and the part before the current time of the IrIJ figure and the part after it are displayed as follows: A control status display method characterized by the ability to reverse the relationship.