JPS588316A - Sequence controller - Google Patents

Abstract

PURPOSE:To perform the rewrite of set data intentionally, by switching the mode to various modes easily with the operation of a functional switching key and selecting the propriety of rewrite of monitor display and set data. CONSTITUTION:When a functional switching key is switched to the mode such as test, execution and adjustment and a start key is depressed, the contents of display of the display section 7 are displayed on the line display during high speed refresh based on the information stored in a user's RAM11. When a TIM key (timer designation) is depressed at this state, the displays 7 are all distinguished and the number designation of the timer is waited. When the number of timer is designated, this number of the elapsed data are displayed on the display section 7 from an RAM16 of a CPU6 via a keyboard control section IC15. When an R/W key is depressed with the numerical key depression to be specified, the numericalkey data are read, a new set data is written in the specified area of the RAM11 and the data in the monitor is rewritten.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sequence control device, and particularly to one having a monitoring function.

Conventionally, sequence control equipment has been used to display input/output status during operation and to control execution stages (also referred to as 9-in) during parallel operation in order to further improve operability and handling.
The display panel has a built-in display device such as a large number of LED displays and lamps, and these display means can be used to monitor the operating status. There was someone who looked at it. Considering the 1M capacity as a monitor, there is no one that has sufficient functionality, and as mentioned above, those that always display on one display panel have a large external shape and are expensive. There were a lot of problems with the seeds of falsehood that had to be adopted in high-grade III rights such as Naru Nenme I and Yodo Kata.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide a condition-controlled stored program type V-ken control device. The purpose of the present invention is to provide a sequence control device with excellent operability and practicality.

That is, one aspect of the present invention is that the monitor display of timers, counters, internal outputs, etc., and the availability of data rewriting processing of setting data are determined by the operating mode during operation, and furthermore, a timer is used as the monitor switching means. It is equipped with a counter and an internal output key, and after pressing this key, the above-mentioned different types of monitor displays are repeatedly displayed by pressing a numerical key. It is characterized by being configured so that it can be switched continuously and arbitrarily. - An embodiment of the present invention will be described in detail below based on the drawings.

In FIG. 1, 1 is the main body of the sequence control device of the present invention, and a push-down key 2 (hereinafter referred to as
It is called a key. ). 5 is a function switching (also referred to as mode switching) that enables the sequence control device of the present invention to perform various functions.
This is the key. 4 is an input terminal, 5 is an output terminal, and 6 is an output relay. 7 is controlled by a keyboard E (described later) and displays 6 digits by means of light emitting diodes t and 4.

A display section 17 serving as a display means for performing monitor display in the present invention is a power switch.

Next, the control structure of the V-can controller of the present invention will be explained based on the block diagram of FIG. In FIG. 2, B is a power supply section that supplies various voltages. 9 is a central processing unit (hereinafter referred to as JPU) that mainly performs logical operations.
, 1 ouv-ken control device, a read-only memory for storing processing procedures for various functions (
Hereinafter, it will be referred to as ROM. )%11 is a writable random access memory (hereinafter referred to as ``f-RAM'') that stores the contents of the sequence circuit preset by the programming key 2.

I ), the 12Fi input terminal 4! I! The input section to continue, n14, which is the output section for continuing the 1B#f@K8 power terminal 5, is the various *-
2 is installed, the electrical signals of these various keys are detected, and the CPU
Sends an interrupt signal to the CPU 9, 1 sends various key signals as key manual data to the CPU 9, receives display data from the CPUQ, and performs all controls such as display operations to display it on the display section 7. Keyboard control engineer 01
5 is a complete program setting II (also referred to as a loader part), and fsK of the CPU 9 can be used freely, and a writable system RAM 116 is built-in.

The present invention having the above configuration will now be described in detail.

A sequence diagram in which the normal relay sequence is expressed as a logic symbol, as shown in FIG. 3 when the power switch 17 is turned on and the function changeover key 3 shown in FIG. 1 is switched to the "program" mode (position P in the diagram). program setting section 1
Program using the programming keys 2&C provided at 4 and 9. This programming key 2 is equipped with several types of keys as described in the first section.As command keys, KAND, OR, END, T-M (# Y
There are keys such as ON'r (count I, specification), %2 (internal output specification), and OUT for output specification.

An R/W (read/write) key is provided.

In addition, an input key 2A and an output key 2B are arranged in a 1:1 correspondence with the input terminal 4 and the output terminal 5.

Specify numbers such as T, ONT, Z, etc. above, and
Numerical keys used for specification etc. are provided.

AND2 starts with input specification such as OR, 10, output specification, R
One coherent logic leading to /W is called a line, and END is programmed in the final part of the program, 4ψ, ie, the final line, by pressing the END key. These programs are naturally stored in the user RAM 11 by pressing the R/W key #F' for each twin. After programming in this way, the function switching key 5t, for example, "Test", "Execution", a Adjustment #
Mode 1!Switch to 'I'-E position in Figure 1,
When the start key (18 in the figure) is pressed, the sequence control device of the present invention starts from the first entry 00 to E (not shown in the figure).
Repeated high-speed refresh between the last line up to ND1
1. When the input condition is satisfied, the output is output to the output key or the output terminal, and conversely, when the input condition is not satisfied, the output to the output key or the output terminal is turned off. Now, the main points of the present invention and the monitor function to be faked will be explained. Press the - movement key 18 with a key other than 'Program' 1. If the operation does not start, the program will always be in the RUN state with false information stored in the user RAM 11 as described above. At this time, the display content of the display section 7 is
.

As shown in the figure, twin display is performed during high-speed refresh to fake it. Although the timer is used in Figure 3, the timer is controlled by the power supply section 8, which is not shown in Figure 2.
4o from the power supply frequency.

ms timer signal T8 is generated and this signal is sent to the CPU.
9 is always detected and given top priority when receiving signals.

Run a special program. This program runs every <1 ams as described above, so it is possible to control the timer. Here, the above-mentioned program that refreshes at high speed, ie, the main program, and the program that runs when key 2 for previous IB programming is pressed, ie, the interrupt program,
It goes without saying that the three programs for every 100 m5 run independently.To explain the timer control in detail, the timer data set in the program mode is shown in Figure 5 as described above. The specific area 11AO of the computer RAM 11 shown in FIG. The system RA%16 built into the cpp9 is cleared to "00#" at the start of operation, and this V
A specific area of the stem RAM 16 is assigned as a timer working area, +1A 1dA, and "progress data"
A 3-byte area designated as KIIffa100
mg's special program increases the count value every 1oom8
The value added by 1 is written and stored again. This allows timer elapsed data to be stored. The special program of 100ff18 is the timer working area 1$uF)m defined area γtic1.
After X1x, the added value, for example, TKDl shown in FIG.
A comparison process is performed to see if it matches the TSDl shown in the figure, and if it matches, the main program
I set the flag FA on the software to make it work. Therefore, the main program can process one phantom time using these seven lags. If the timer start input condition disappears or the reset condition is input, this flag FA is naturally cleared, and
Working element for the timer.

The memory of Lite1dA is also cleared to "oo".

In the V-ken control unit of the present invention, multiple timers can be specified, and the distinction between these is controlled by a flag on the software. Tonatsuna timer only flag F
B is set, this flag is monitored by the 100mθ program, and the working area 1 of the timer that should be validly output is set.
．． In terms of 8 units, only the 11 working numbers corresponding to the valid timer numbers are added, and the unspecified timer and input conditions are not satisfied. Is the flag F'B and work area corresponding to the number of the reminder timer immediately lIi? m', o o
# Amano is cleared. Therefore, sequence control is possible with the tie V- value set as described above, and in the present invention, as described above, the timer information is set to the specific area 11A of user RA & N1 and V The stem RAM 16 is configured to store data in two areas of the 7-king area 16A provided in the stem RAM 16, and the recording area 1
The 6A side is an addition system, and the progress data of this working area is displayed by a display means, which enables a monitoring function. That is, 1. The monitor function in the present invention is a mode other than the program mode, for example, when the start key (18
) to display the main program, interrupt program, 1
The program 00m5 runs independently, and the main program displays a false line on the display w7, as shown in FIG. 4, and enters the operating state. In this state, if you press the above-mentioned T/M key, an interrupt will be generated.The T/M key will be recognized and the display section 7 will be blanked out.
1. , L) Light up the T/M key with built-in pD.

After that, the system waits for the timer number to be specified. Said.

The monitor switching means includes the T, M, and numeric keys.
If the numerical key, for example 1" is not pressed, the 1 interrupt program will be programmed as '100m8' and the timer number,
Turn on the flag FOI indicating that the side of the monitor has started.
Then, the 10oms program determines this flag FQ and the timer number, and after performing the above-mentioned addition of the nine elapsed data and comparison processing with the setting data, the timer is selected from the timer working area 16A as the elapsed data storage area. Search the address for the area γ that corresponds to the specified number, and if you do not press #1# above, move to working area 16.
The elapsed data consisting of the first 5 bytes TKD1 of A is stored in the display data IB buffer 1-6B provided in the system RAM 16 along with the timer designation number.The data editing method will be described in detail. n,)CPU)
When the data is transmitted to the keyboard controller C15 via the 1 dB output, the keyboard controller C15 displays the display section 7 at the first digit as shown in FIG.

The second digit is blank (light off), the third digit is the timer designation number, and the fourth to sixth digits are the progress data.

2) The figure shows the monitor display when timer 1 has elapsed for 51 seconds, and this display continues for a period of 100 m8.

When 5.2 seconds have elapsed, the button elapsed a shown in Figure (6) is displayed on the monitor, and this is repeated thereafter. In the present invention, (0) as shown in the figure (the 99.9 second speed is displayed as a decimal point, and the display is displayed when Ln2O3 seconds has not been reached), the decimal point goes out as shown in the figure, and then 999? Until then, an integer is displayed unless the timer activation input condition disappears or a reset condition is applied. After reaching the maximum time of 999 seconds, the progress data of the working area also stops being added, and a:
Hold a and do b. Therefore, the monitor display continues for 999 seconds, but it goes without saying that the soil is constructed in such a way that there is no problem. Also, in discussing the present invention, a time-up display is also provided. That is, in a special program of 100m8, if the elapsed data I does not match the set data, or if the elapsed data I is larger than the set data b#j, 1m, (IEI)! ! !
As shown in JK, the time tip alarm means 19, such as a decimal point, is turned on at the lowest digit, that is, the sixth digit, and the monitoring function is further improved and false. In addition, if you are monitoring a timer number that is not specified, or if you are monitoring in a de-energized state because the input conditions for that timer are not satisfied, or if the timer reset F input is not applied, etc. (as shown in Figure 0), , the elapsed data is displayed as "00.0 seconds" to distinguish it from the state in which addition is displayed while the timer is energized.Also, in the present invention -
For example, when the timer 1 is being displayed on the monitor, press the numeric keys to press "0" as shown in Figure 8. , and the other digits are displayed blank (unlit), and when you press two numeric keys further, the display as shown in the figure (Φ) is displayed, and with the 5-digit numeric key pressed, press the R/W key (read/write key). Then, the display data I to send the keyboard controller CK
Display buffer as a save area of 11 dB, 1: The 3-digit key manual data, regardless of the retimer number, is read by the interrupt program, and the corresponding area LC of the knee f-RAM 11 is immediately set to the 3-digit 3-digit key. Data can be written and data can be rewritten during monitoring.
From that point on, the configuration is such that the setting data base is used to continue the program. In the above, if the closing price key is pressed for four or more digits in succession, the fourth digit will be repeated as the first digit. Furthermore, in the present invention, the R/W key provided in the program setting section can be pressed while the monitor is operating, without pressing a numerical key, while visually checking the display value displayed on the monitor by a display means such as a display section. The writing operation of the data writing means (the display data being displayed can be immediately rewritten as new setting data I).The principle is the same as described above, when the R/W key is pressed. The purpose of the interrupt program is to immediately rewrite the progress data from the display buffer 1tSB to the user RAM 11 as desired setting data.If such a function is to be installed, for example, as shown in FIG. 1. Transport the object 20 and
When controlling the transport of another object 21 when reaching a point, it is possible to control the transport to point A using a timer.

In such a case, set the timer setting value to a thick η value TA' in program mode in advance, and follow the procedure described in 1. In actual adjustment mode, the object 20#Jll is sent b
monitor the status of the timer while displaying it on the monitor.
When the object 20 reaches the point A, if you press the R/W key, the monitor display at that point [TA will be registered as the desired setting data, so the object 20 will move from that point on to other objects at exactly 1 cA. It is possible to control the conveyance of the object 21.

After adjusting the set value in the adjustment mode.

When the mode is switched to execution amount mode, EM control is performed at point A. In addition, in the case of the execution amount - mode, even if you press the R/W key in both the interrupt program and the 8-key 1, to prevent a third party from changing the set value by mistake, The user RAM 22 is guarded against writing.

Therefore, in the present invention, the monitor operation is possible in the #death8%adjustment1wline mode excluding the program mode, and the setting data can be rewritten only in the test and adjustment mode. In the setting data rewriting described above, after pressing the R/W key, the screen=i is displayed again. 4: During monitor operation, press L to stop the monitor function and return to normal operating state.
When the operator presses the N (line) key, the display section 7 displays the line again as shown in Fig. 4, and the normal operating state 1
In the embodiment of the present invention, the operation of monitoring the timer was discussed in detail, but in addition to monitoring the % timer, it is also possible to monitor the counter and internal output. It is. Like the timer, the counter is also stored in the user RAM 11 and the system R as shown in Figure wi5 and Figure 6.
AML6 has dedicated areas 11B and 16C, and operations such as monitoring methods and data rewriting are almost the same.

The differences are that the counter addition process is performed by the main program, and that data setting and data rewriting can only be done with integers, whereas the timer can also specify decimal points. Also, as shown in FIG. 10), if the counter M does not count up to a value set, a count-up warning means such as a decimal point is lit on the lowest digit of the display section, similar to a timer. 111E10 (to) means that the count has increased by 10 Ki[I]. After the count-up decimal point lights up.

Unless the starting input condition for the counter disappears or a reset condition is applied, the lowest decimal point is lit and the count is displayed up to the maximum value of 999 times.

If the activation input condition disappears as described above, the counter value does not increase, but displays the counter value immediately before the activation input condition disappears. When the reset condition is applied, the count value will display "000" as shown in (■) in Figure 10 in the same way as the timer.The monitor of the primary internal output will be described, but in this case the internal output and teeth.

In order to reduce the number of % lines as much as possible when programming the sequence shown in (f) of FIG.
< replaces the V-cence with multiple inputs specified by OR etc. into one coherent internal output as shown in (b), and this internal output is input on another line. This method is used as a condition and outputs to the output key or line output terminal.The internal output is called internal output, and the specification in program mode and in other modes other than program To monitor, as mentioned above, press the Z key and the 2-digit numeric key. To monitor the internal output, press the 2-digit key after starting # at a command other than the program mode, then press the 2-digit numeric key. This is possible by pressing the button, and when the input condition for the internal output is met, that is, in the excitation state, the decimal point 19 lights up in the lowest digit as shown in Figure 12, 4. If the input condition force monitoring is not satisfied, the lowest The decimal point of the lower digit is turned off. If an unused internal output is specified, the decimal point will not be lit, and only the internal output symbol, such as % (b), will be lit. There is no data rewriting function, and monitoring of internal output is done by the main program. timer, counter I,
Both of the internal outputs are equipped with built-in LEDs, T-engine M, and C.
Since the monitor display is performed on the display when the NT and Z keys are lit in the 1 and Th states, you can see what is being monitored.
Since the monitor can be distinguished from the other, even if the timer, counter, and internal output monitor operations are repeated one after another, the above monitor display can be reliably made. Although a 6-digit LED display may be used, a liquid crystal display, etc. may also be applied, and the number of display digits, 1 display position, 1 display element, etc. is not limited to the embodiment, and various types may be used within the scope of the claims of the present invention. Needless to say, various hairstyles and application examples are possible, and area configurations, sizes, and various data configurations of the system RAM, user RAM, etc. are not limited to the examples.

As described above, according to the present invention, various operation modes can be easily switched by rotating the function switching key, as shown in Fig. 15 KF3.
As shown in the table below, the monitor display and setting data are configured so that whether or not to rewrite them can be selected, and the monitor display of timers, counters, internal outputs, etc. is in good condition in the appropriate operation mode, and the setting data I. Rewriting can be done consciously. In other words, the user.

First, program the sequence in the "Program" mode, set the setting data such as %-timer, counter, etc., and test whether the set value button corresponds to the "Test" mode by operating the input key in the "Test" mode. If you display the LED on the output key and the setting value is obviously not appropriate, you can correct the setting data in this "test" mode. In some cases, such as when a load is not connected to the output terminal section, it may be necessary to slightly modify the settings in 'Test' mode due to the load startup characteristics and mechanical operation timing. is obtained in "adjustment" mode. After adjusting the set values in the "adjustment" mode, normal operation is performed in the "a execution" mode, and in this state, the normal set values may be changed to unauthorized data due to an erroneous operation by the user of the device or a third party. 11 during which it is rewritten to
It is guarded by an interrupt program and an 8-doue test to prevent the occurrence of I#l, and is configured to prevent data from being rewritten. As described above, the setting data allows the operation mode to be adjusted stepwise by using the function changeover key, and the accuracy of the setting value can be greatly improved. Furthermore, timer, click 1. By pressing an extremely simple combination of the internal output key and the numeric key that specifies these symbols, the timer, counter, and internal output monitor display can be repeatedly and continuously switched instantly. , these interrelationships can be utilized as effective progress data I for an extremely short period of time, and it is possible to greatly improve the MO=a function, providing excellent operability and practicality.

[Brief explanation of the drawing]

FIG. 1 is a front view of the sequence control device of the present invention. Figure 2 is a block diagram showing the control configuration, Figure 3 is a V-ken diagram without logic symbolization, and Figure 4 is the state of the display! a Explanatory diagram, Figure 5, and g6 traces are RAM area configuration diagrams, Figures 7-
FIG. 10 is an explanatory diagram showing the operating state, FIG. 11 is a sequence diagram, and FIGS. 12 and 13 are explanatory diagrams showing the operating state. 2: Data writing means, 2a: Numeric keys, 3I mode switching means, 7: Monitor display means, Figure 1 Figure 3 number (b) a no (b) B] Geiichiban (C) [ ]”圀↓ 3d・[]ヱヱm↓. 8, I'jc'D' Banzan

Claims (1)

[Claims] Mode switching means capable of switching various operating modes during tM, monitor switching means and display means for visually switching the operating state of sequence control, and a bell finger? , number keys for setting data, data book 4! Configuration 1. includes a data writing means that enables P, and the monitor display and data I rewriting processing are determined by the % operation mode. A sequence control device characterized by: 2. Three types of monitor switching means are provided: a timer, a counter, and an internal quantity key, and after pressing this key, the 1 number designation is repeated to the above-mentioned type A monitor display by a combination of numerical key presses. Series #I! 2. The control sequence control device according to claim 1, characterized in that the control sequence control device is configured such that it can be switched arbitrarily.