JPS5810205A - Sequence controller - Google Patents

Abstract

PURPOSE:To improve the operability and practicality, by performing alarm display of time-up or count-up for a monitor display, during the monitor display of a timer and a counter. CONSTITUTION:When the operation is started by depressing a start key 18 in the modes other than ''program'', the program is normally in RUN state based on the information stored in a user's RAM 11, and the content of display of said display 7 makes a line display during high speed scanning. In the control of a timer, a timer signal TS in 100ms is produced from a power supply frequency with a power supply section 8, this signal is always detected with a CPU 9 and a special program is run with the highest priority at the signal reception. This program is run at each 100ms, allowing to control the timer.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sequence control device, and particularly relates to a
Concerning things inspired by MS Noh.

Conventionally, in order to further improve operability and ease of handling, sequence control devices display input/output status during operation, flint stages (also referred to as lines) during parallel operation, etc.
The display panel has a number of built-in display devices such as ED displays and lamps, and these display means are used to monitor the state during operation, which is called a monitor. If you think about the functions of a monitor and 1-5, there is no one that has sufficient functions, and as mentioned above, a system that always displays on one display panel requires a large number of display means. This increases the external shape of the main body and increases the cost, so it must be used in high-end models such as advanced models (
There were many problems such as A.

This issue 111 aims to take into account the drawbacks listed in H (
In terms of conditional programmable store program type sequence control devices, we provide a sequence control device that is equipped with a variety of monitoring functions and is easy to operate and practical. .

Immediately, during the monitor display operation of the timer or counter of the present invention, when the elapsed data matches the set data or is thicker than the set data (if the elapsed data is thicker than the set data) It is characterized by displaying obituary information by increasing the number of people or by counting them up.

An embodiment of the present invention will be described in detail below based on the drawings.

In FIG. 1, ``g'' is the main body of the sequence control device of the present invention, and the programming key 2 (hereinafter referred to as
It is called a key. ). Rid is a function switching (also referred to as mode switching) key that enables the sequence control control 1t of the present invention to perform various functions and to switch the functions. 4t is an input terminal; 5 is an output terminal;
The 6ii output relay 67 is controlled by the keyboard IC (described later) and displays 6t4j.It is made up of a light emitting diode and a diode to obtain I/'1, and has two lines of 72 display, the top display means, and the 17 display. St (, 17 is the power supply switch F
Next, based on the block diagram of FIG. 2, the m1-in-one configuration of the sequence control device of the present invention will be explained. In Fig. 2, 8 is an α source that supplies each bolt pressure.The central processing unit (hereinafter referred to as CP
6), 10 is called U;
And L7's seed/warrior function's 9-filling procedure is remembered one after another, and a dedicated lead-only memory (hereinafter referred to as R○1φtoS-
t le. ) 11Vi Write and read the contents of the sequence circuit pre-programmed by the programming f-2, and read/write flexible random access.
A memory (hereinafter referred to as user RA1□A), 12 is an input section that connects the input terminal A4, 13
is the 7ζth output section that connects the output terminal 5.

14 is equipped with each of the above-mentioned programming keys 3-2, detects the electrical signals of these various keys, and selects 0P.
The CPU 9 receives the display data and displays it on the display section 7, etc. A program setting section (i) equipped with keyboard control 1Q15'(i)
O-da part is also Hayashi-ru. ). In addition, there is a system R1φ that can freely read and write data inside the 0PU9.
16 are built-in.

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

With the power switch 17 turned on, the function selector key 3 shown in Fig. 1 is switched to the "program" mode (position P in the figure), as shown in Fig. Program setting section 14 as shown in the diagram
Programming is performed using the programming key 2 provided on the screen. As described below, the key 2 of this Brigramming A is equipped with several types of keys, and the command keys are AND, OR, END, and 'I'J:M (timer specification) for manual conditions.

There are CNT (counter designation) and Z (internal output designation) keys, and OUT and R/W (read/write) keys are provided for output designation. In addition, the input terminal 4 and the output terminal 5nl: Friend key 2 is arranged corresponding to 1.
Person, oyster-2B, father above TI M4. Numerical keys are provided for specifying numbers such as ON'T and Z, and for specifying data. Starting from input specification such as AND or OR,
A single piece of logic leading to output designation and R/W is called a line, and END is programmed in the final part of the program, ie, the final line, using the EEND key. These programs are, of course, stored in the user RAM 11 by pressing the R/W key line by line.

After programming in this way, press the function changeover key 3 outside the program setting section, for example, in the "test"
, PA execution ", 6g4 adjustment", etc. T-E in Figure 1
If you switch to normal injection and press the start key (18 in the figure),
The sequence control device of the present invention repeatedly scans the last line from the first 5 ins OO to POND shown in Fig. 3 at high speed, and when the input condition is satisfied, outputs the output to the output key or output terminal. When the input condition is not satisfied, the output key is also set to 1. < gives an output to the output terminal and can perform conditional control type sequence control.

Next, the Ubesa monitor function will be explained as the main point of the present invention. If the start key 18 is pressed to start operation in a mode other than 'Program', as described above, user 1 (
Based on the information stored in AJ, 1111, the program is always in the RUN state, and at this time, the display content on the display section 7 is a single line display during high-speed scanning, as shown in FIG. I am doing it. The sequence using the timer is shown in FIG. 5. The timer control is as follows: The timer signal Ts of iooms is generated from the power frequency from the power supply section BVC shown in FIG. It detects the signal, gives top priority when receiving the signal, and turns on a special program.This program is as described above (10
0]'llS, it is possible to control the timer.

Here is the fast scanning program mentioned earlier.

That is, the main program, the program that runs when the programming key 2 is not pressed, that is, the interrupt program, and the three programs that run independently. In detail, the control of the h0 timer up to u5 is as follows. As mentioned above, the timer data set in the program mode is written to the designated 2-byte area of the specific area i1A of the user RAM 11 shown in Figure 8g5. and is stored as "setting data".
The built-in system RAM 16 is cleared to 110017 at the start of operation, as shown in FIG. This specific area of the system RAM 16 is allocated as the timer working area 16A, and the 100nl8 special program updates and writes 1111, which is the count value added by +1, every tooms to the 6-byte area designated as 'elapsed data'. This allows the elapsed data of the timer to be stored. 1 Tooms' special program 7 adds the data to the designated area of the timer tooling area 16A, and then records the addition. For example, the values shown in Figure 6'-
tTKD1 is the data in the corresponding crotch in user RAlvH1, for example! 9. If the result is 1, the flag FAi on the software is set to notify the main program. A7)6 Therefore, the main program can perform retime-up processing using this flag FA.

If the timer activation input condition disappears or the reset condition is input, this flag F''A is naturally cleared and the timer warginog area 16A is cleared.
The memory of "on" is also cleared (8).The sequence control device of the present invention allows multiple timers to be specified, and the distinction between these is controlled by flags on the software, and the main In the program, a flag FB is set only for timers whose input conditions have been met and become valid, and the 100m5 program monitors this flag and determines the tooling area, tool, etc. of the timer that should be validly output.
-19- 8゛Only the working area corresponding to the valid timer number is added to the weight, and the flag FB corresponding to 1-6 is added to the unspecified timer and the number of evening and f-mers whose input conditions are not met. The working area is immediately cleared to "00". Therefore, sequence control is possible with a chain of timers set as described above. In the present invention, as described above, 'C' transmits timer information to user E'1. A Mll specific area 11A and a narking area 16A provided in the system RAM 16 are configured to store data, and the 9-king area 1
(The SA side is an addition system, and the progress data of this working area is displayed by the display means, thereby enabling the monitoring function.1. In other words, the monitoring function in the present invention is as follows. When the start key (18 for the first time) is pressed in a mode other than the program mode, such as the aforementioned test mode, the main program, interrupt program, and tooms program run independently, and the main program is displayed on the display section 7. As shown in @41MIK, the 0 wine is displayed after refretuning, and it becomes operational.In this state, if you press the TIM key as mentioned above, the interrupt program will start this TI.
Determine the M key and leave the display 7 blank (unlit) 17
, LL"J's built-in 'r I Iφ key is turned on (-1
After that, the system waits for the timer number to be specified. Said T-engineer M
The keys and numerical keys are referred to as monitor switching means. When the numeric key, for example 1'' is pressed, the interrupt program sets the timer number and flag FC to the 100m5(2) program to notify the start of the monitor function.
After the 100m5 program determines this flag FC and the timer number and performs the above-mentioned addition of the progress data and comparison with the setting data, the timer is added to the progress data storage area 1 and the timer working area 16A. An address search is performed for the 7-hier 17a corresponding to the specified number, and when the ``1'''' is fully pressed, progress data consisting of the first 3 bytes TKD1 of the working area 16A is stored in the system RAM 16 along with the specified number of the timer. (The method for editing the data will not be described in detail.

and sends it to the keyboard controller C15, the keyboard controller ICl based on the data in the display buffer 1 (SB)
3 shows the display unit 7 as shown in FIG. 7(a), blank (unlit) on the 1st and 2nd digit days, the timer designation number on the 3rd digit, and 4.
Progress data is displayed in the 6th to 6th digits. (a) shows the monitor display when timer 1 has elapsed for 5.1 seconds.

This display continues for a time of 10 cliTIS, and when 5.2 seconds have elapsed, (1) elapsed value is displayed on the monitor as shown in the figure, and this is repeated thereafter.

In addition, in the present invention (as shown in OE), the 999 second pressure is displayed as a decimal point, and when LA1QQ seconds are reached, the display is (d
) As shown in the figure, after the decimal point goes out, the timer activation input condition disappears until 999 seconds, or reset condition X5: Integer display is performed as long as I/-1 is not applied.

Maximum time and 11. After reaching 999 seconds, stop adding the elapsed data in the working area and maintain that state.
Ru. Therefore, although the monitor display continues for 999 seconds, it goes without saying that the configuration is such that there is no problem in operation. In the eleventh aspect of the present invention, a time-up display is also provided. That is, in a special program of 100m5, if the elapsed data matches the set data, or if the elapsed data is larger than the set data, the decimal point, etc. The time-up alarm means 19 is turned on 17, further improving the monitoring function. In addition, if you are monitoring a timer number 1 that is not specified, or if the input conditions for that timer are not met and monitoring is performed in a de-energized state, or if a timer reset input is applied, etc. As shown, the progress data is “o
o, o'' is displayed, and when the timer is energized, it is distinguished from the state in which addition is displayed.In addition, in the present invention, during the monitor display, for example, when the numeric key is pressed on the monitor of timer 1, If you manually press 11 Q II during the display, the timer number and numeric keys will be displayed on the 3rd and 4th digit day, and the other digits will be blank (unlit), as shown in Figure 8 (a).
If you further press two numeric keys, ■) will be displayed as shown in the figure, and if you press the R/W key (read/write key) with the 3-digit numeric key pressed, the display data 2-7 will be sent to the keyboard control IC. - The 3-digit key manual data excluding the timer 1 number is read from the display buffer 16B as a viewer by an interrupt program, and new 3-digit setting data is immediately placed in the area corresponding to the timer 1 number of the user RAM 11. It is possible to write the data and rewrite the data during monitoring, and from that point on, the monitoring processing is continued based on this setting data. If 4 or more digits are pressed, the 4-digit day will be repeated as a 1-digit day. Furthermore, in the present invention, while the monitor is operating, the displayed value is displayed on the display unit such as the display section (b) without pressing the numerical key.
The display data being displayed can be instantly rewritten as new setting data by a write operation of data writing means such as an R/W key provided in the program setting section.The principle is as described above. Similarly, when the R/W key is pressed, the progress data from the display buffer 16B is immediately rewritten as new setting data in the user RAM 11 by the interrupt program tz.If one function is provided in this way, As shown in FIG. 9, for example, when the object 20 is transported 111 and the gold object 21 is transported once it reaches the point A, the transport control to the point A can be controlled by a timer. possible, and in such a case, change the timer settings in the iLn to the program mode in advance.
Set with ilTTA' and actually use the adjustment mode mentioned above in L7.
The state in which the object 20 is being transported is displayed on the monitor of the timer. When the object 20 reaches point A, pressing the R/W key displays the monitor display value TA at that time. Since this is registered as new setting data, the object 20 can accurately control the conveyance of another object 21 at point A from that point on.

After adjusting the set values in the adjustment mode, when the mode is switched to the execution mode, control is performed accurately at point A. In addition, in the case of execution mode, to prevent a third party from changing the set value by mistake, the hardware protects the user RAM 11 from being written even if the R/W key is pressed. That's it. Therefore, in the present invention, the monitor operation is possible in the test, adjustment, and execution modes, excluding the program mode, and the rewriting of setting data is discussed only in the test and adjustment modes. '' In the double setting data display, the monitor display is performed again after the R/W key is pressed t'. During monitor LJ operation, if you stop the monitor function and press the L/N (line) key without going through normal operation, the line will be displayed again in section 7 at 4-11 as shown in Figure 4. Display or done, normal! g1' returns to the 1yo state and consists of 6. In a simple embodiment of the present invention (A), the timer monitor operation was explained in detail, but the counter is also in contrast to the timer monitor.The counter is also the same as the timer. As shown in Figure 5 and Figures 0 and 6, the user RA !vt
11 and system RAM Dedicated area II in M16
B and 16C + m′τ, monitor ability test, T-・
) Rewriting and other productions are almost the same. The difference is that the m calculation of the dot counter is done in the main program, and that the data setting and data fortune timer can also specify a decimal point, but only w'21 fingers and toes are used. It's 4 and 5. Further, as shown in FIG. 10(a), when the counter has counted up by 1 at the set value, a count-up warning means such as a decimal point is lit at the lowest digit of the display section, similar to a timer. (a) in FIG. 10 means that counter No. 5 has counted up 10 times. After the decimal point of the count up is lit, unless the manual start condition for the counter disappears or the reset condition is applied, the maximum value of 9 will continue until the lowest decimal point is lit.
The count is displayed up to 99 times. If the starting input condition disappears as described above, the counter value does not increase and displays the counter value immediately before the starting input condition disappears. When the reset condition is applied, the count ffl displays "o o o" as shown at (0) in FIG. 10, similar to the timer.

Next, I will describe the monitor of the internal output. Here, the internal output means that when programming the sequence shown in Figure 11 (a), %AND is also used to extremely reduce the number of wines. If multiple inputs are specified using riOR etc.
As shown in (b), the sequence is changed to 16 internal output procedures71/>, and this internal output is used as an input condition in another wine,
This is a method of outputting to the output key or output terminal, and the internal output is called internal output.When specifying the program mode poem and monitoring in other modes other than the program, the above-mentioned [[ 7 ta like Z key and numeric key 2
This is done by pressing the digit key. Monitoring of the internal output is possible by pressing the Z key after startup in a mode other than program mode, and then pressing the 2-digit numeric key.The input conditions for the internal output are strange.
When the input fruit juice is established, that is, in the excited state, the decimal point 19 lights up at the lowest digit as shown in Figure 12, and when the input fruit juice is not established, the decimal point 19 at the lowest digit turns off. If you specify a layer internal output, the decimal point above will not light up, and only the internal output number will light up as shown in (b).When monitoring the internal output, the data There is no rewriting action.Also, the internal output is monitored by the main program.The timer, counter, and internal output monitors each have built-in LEDs, TiM, and ONT.

In order to display the monitor information on the display when the Z key is not lit, it is easy to distinguish what is being monitored and what is causing the noise, so repeat the operation to monitor the timer, counter, and internal output one after another. This also ensures that the above monitor display is possible. In the present invention, the display section is a 6-digit LED display as an example, but a liquid crystal display or the like may be applied, and the table shows a display element at the digit i & 1 display position 1. etc. are not limited to implementation V], and within the scope of the present invention,
There are endless possibilities for various modifications and applications.

The system RAM and user RAII (7) area configuration, size, and each inserted data configuration are also limited to the embodiments in fx and IA.

As described above, according to the present invention, during the monitor display operation of the timer and counter, when each elapsed value or time alarm 7'' is counted up, the lowest digit of the display section performing the monitor display indicates the time up or count up. By configuring the alarm display, it is possible to monitor the display unit to confirm that the Nkennu control is operating correctly at the set value set by the data setting and data rewriting operations during program mode or monitor display operation. In addition to improving reliability by monitoring on the display, you can also check that the user's program is normal, and that the operating status is normal. It is necessary to be able to easily understand whether the state is normal or not after power-up, and if it is narrowed down to the monitoring operation of internal outputs, it is possible to immediately understand whether the internal outputs are in an energized state or a de-energized state. We can offer you seven very good things.

[Brief explanation of the drawing]

FIG. 1 is a front view of the sequence shaft control device of the present invention, FIG. 2 is a block diagram showing the control configuration, FIG. 6 is a logic symbolization sequence diagram, and FIG. 4 is an explanatory diagram of the state of the display section. Figures 5 and M6 are of J3A-1 Eli Ryo.
FIG. 10 is an explanatory diagram showing the operating state. FIG. 11 is a sequence diagram, and FIG. 12 is an explanatory diagram showing the operating state. 6: Monitor switching means, 7: Display means, 9; Central performance-) I
Processing unit, 10: ROM, 11; RAM Fig. 1
4 No. 32 Og diagram ↓ ・C ``] Congee number d ・ [■■ group ↓ Sai 9 figure (b) mouth] Ikasumi no) [I welcome Og/215 ■2 72] 23- /- 72

Claims (1)

[Scope of Claims] 1. A central processing unit having a monitor switching means for visually changing the operating state of the sequence control and the display means, and a central processing unit as a cutting unit for performing all the monitoring operations inside the main body. and 2 storage memory systems, a user RAM for storing setting data, and a system RAM for storing progress data, and the monitor switching means allows timer, counter, internal output, etc. to be displayed on the monitor. 17. Monitor display of timer and counter During operation, progress data matches setting data or progress data 4! is greater than the set data, each of the display section V time-up or count-up, respectively, Il! A sequence control device characterized in that an F report display has a line display configuration. 2. The sequence control device according to claim 1, characterized in that a decimal point at the least significant digit of the display is used as a time-up or count-up warning means. 5. During internal output monitoring operation, when the internal output input conditions are met and the excitation state is established, the excitation state is displayed on a part of the display, and if the input conditions are not met or reset 2. The sequence control device according to claim 1, wherein the display indicating the excitation state is turned off when a condition is applied.