JPH045703A - Sequence program generating device - Google Patents

Abstract

PURPOSE:To shorten the time and to reduce labor required for generating a program by executing grammatical error check, double coil check and correction, and the optimization of a circuit simultaneously with an interactive system every time generating one circuit at the time of the generation of the program. CONSTITUTION:A CPU 11 executes double coil check processing, etc., based on a system program stored beforehand in a system program memory 12. The memory 12 stores the system program to make the CPU 11 execute the double coil check, etc. A user program memory 13 stores a user program converted by a user based on a ladder diagram, and a data memory 14 stores tentatively retrieved double coil data, etc. An input circuit 15 is provided with a large number of input signal sources such as various kinds of switches, an operating coil and so on, and an output circuit 16 is provided with a large number of control realys. A peripheral device interface 17 matches a voltage level, etc., between a programmable controller and a programming console of its peripheral device.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention allows input of a sequence command to be executed in the form of a ladder diagram, and this command and an executable machine language are one; Programmable command system corresponding to 1
The present invention relates to a sequence program creation device for a controller.

(B) Prior Art Conventionally, there is a program creation device for a programmable controller that can input sequence commands using a ladder diagram. The above-mentioned sequence program creation device is, for example, a sixth
Create a program based on the ladder diagram shown in 0. Error checking of sequence programs input in this way and circuit optimization (Patent application 1986-116)
No. 79) There is an apparatus that performs corrections of a double coil (Japanese Patent Application No. 63-322759) after creating a sequence program.

(c) Problems to be solved by the invention By the way, with this method, when the user creates a program and performs checks, optimizations, corrections such as double coils, etc. after creating a program, an error list etc. There was a problem in that it took time and effort to check and modify the program because the program had to be downloaded and checked while referring to it.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to reduce the effort and time required to create a sequence program by checking, optimizing, and modifying the program for each circuit.

(d) Means for Solving the Problems In order to achieve the above object, the program creation device of the present invention includes a grammatical error processing means for checking the grammatical errors in the user program in response to a command input from an operator. , a double coil processing means for searching and modifying double coils, and an optimization circuit processing means for optimizing the circuit, and these processes are performed interactively with the user.

(e) According to the sequence program creation device configured as above,
When creating a program, you can simultaneously perform syntax error checks, double coil checks and corrections, and circuit optimization in an interactive format each time you create a circuit. This eliminates the need to check for errors after inputting the entire program and modify the program while looking at an error list, thereby reducing the time and effort required to create the program.

(F) Embodiments Below, embodiments of the sequence program creation device according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows the functional blocks of the program creation device.

This sequence program creation device includes an input section (1) for inputting user program commands, etc., and a grammar error processing section (2) for checking grammar errors each time a circuit is created.
When there are no grammar errors, the double coil processing unit (3) searches for a double coil and makes corrections, and the circuit is optimized to reduce the number of steps in the circuit and improve execution speed. Optimal circuit processing section (4), (2), +31 (
It has a display section (5) necessary for displaying the results of the processing section 4) and performing the processing in an interactive manner with the user.

FIG. 2 shows a hardware configuration diagram of the sequence program creation device.

The pass line (18) of this sequence program creation device
) includes a CPU 1ll), a system program memory (12), a user program memory (13), a data memory (14), an input circuit (15), and an output circuit (
16) and a peripheral device interface (17) are connected.

CPU (11) has system program memory (1
2) Based on the system program stored in advance,
Executes double coil check processing, etc.

The system program memory (2) stores a system program that causes the CPU (11) to perform double coil check processing and the like. The functional block diagram shown in FIG. 1 above is based on this system program.

The user program memory (13) stores a user program converted by the user based on a ladder diagram. Further, the data memory (14) temporarily stores searched double coil data and the like. Furthermore, the input circuit (15) has a large number of input signal sources such as various switches or operation coils, and the output circuit (16) is equipped with a large number of control relays.

The peripheral device interface (17) is a programmable controller and its peripheral devices.
The voltage levels, etc. between consoles are matched.

FIG. 3 shows an operation panel f15a) connected to the sequence program creation device.

The operation panel (15a') has number keys f1 from 0 to 9.
5b), element keys (15c), command keys (15dl), various processing keys (15el), and numeric keys (15c), command keys (15dl), and various processing keys (15el).
5b) is.

The various processing keys (15e) are used to input element numbers, etc. when creating a user program, and the various processing keys (15e) are equipped with various function keys operated when creating or modifying a program.The command key (15c) is used to input sequence commands. used when entering.

FIG. 4 shows the initial display screen of the input circuit, and FIG. 5 shows a flowchart of the sequence program creation processing program.

In such a configuration, the operator immediately creates a circuit program (FIG. 6). If this circuit is checked and it is found that there is nothing, the next circuit is created (FIG. 7). - After inputting the circuit, pressing the ``Create Circuit'' key starts checking the circuit. In this case, the message "grammar error rLD, there are 8 or more AND instructions" is displayed.

Then, when the circuit is corrected and the ``Create Circuit'' key is pressed again, the circuit is checked and nothing is found, so the process moves on to creating the next circuit (Figure 8). After creating the third circuit (Figure 9), press the "Create circuit" key and the flow will be as shown in Figure 5.
Check and display the results (Figure 9). The message "Double coil exists. Do you want to modify it? <Y/N>J,""Do you want to optimize it? <Y/N>" appears. If you select "Y" for both, the result will be as shown in Figure 10. . Then press the "Create Finish" key to finish creating the program.

With the program creation device with the above configuration, the program can be created while checking each time a circuit is created, so compared to the method of checking after creating the program and modifying the program while looking at a list etc. Time and effort can be reduced.

(G) Effects of the Invention As described above, according to the sequence program creation device of the present invention, it is possible to create a program in an interactive manner while checking each circuit. This method has the unique effect of reducing the time and effort required to create a program compared to the method of making corrections while checking the program, and further reduces the possibility of erroneous movements of the controlled object due to programming errors.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram of a sequence program creation device according to the present invention, FIG. 2 is a hardware configuration diagram of the sequence program creation device, and FIG. 3 is a sequence program creation device according to the present invention.
Fig. 4 is an external view showing the operation panel of the program creation device;
The figures are flowcharts of the program creation process, figures 6 to 10.
The figure is a schematic state diagram showing the display form of the display section of the input circuit. t, ll)...CPU, (12)...-system program memory, (13)...user program memory, (14)...data memory, (15)...input circuit, (16)... ... Output circuit, (17) --- Peripheral device interface.

Claims (1)

[Claims] 1) An input means for inputting a user program for sequence control of a controlled object circuit by circuit in an interactive format using a ladder diagram, a storage means for storing the input user program, and a grammar error check in the user program. A sequence program creation device comprising: a grammar error processing means for correcting a double coil in a ladder diagram; a double coil processing means for correcting a double coil in a ladder diagram; and an optimization processing means for optimizing a circuit.