JPH1063309A - Peripheral device of programmable controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance efficiency in the design of a sequence program. SOLUTION: This device is provided with a macroprogram registering means 1 for registering collective sequence programs as a macroprograms, a device registering means 2 for registering a device for extending the macroprogram which is registered by the macroprogram registering means 1 to be the sequence program, a correction registering means 3 for registering a history in a correction registering table when a macro-extending part is corrected after extension into the sequence program and a macro-extending means 4 for developing a part other than the part where is previously corrected by the sequence program to be the sequence program through the use of the correction registering table of the sequence program concerning contents when the macroprogram is corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peripheral device of a programmable controller for programming a sequence program for a programmable controller (hereinafter referred to as a PC) for controlling equipment, and more particularly to a peripheral device for a sequence program using a macro program. The present invention relates to a peripheral device of a programmable controller for performing programming.

[0002]

2. Description of the Related Art FIG. 55 shows functional blocks when a macro program of a ladder circuit used as a standard as disclosed in Japanese Patent Application Laid-Open No. 5-189012 is developed into a sequence program.

[0003] In this specification, a group of programs frequently used in a sequence program is called a macro program or simply a macro, and when it is displayed as a ladder circuit, it is called a macro circuit.

A macro program "M" to be registered in a file
ACROA "(MP) is defined by virtual devices (hereinafter referred to as labels) vd0, vd1, and vd2 for expressing devices in a macro program irrespective of symbols and numbers determined by actual control devices and programming constraints. I have.

[0005] As a correspondence table between labels and actual device numbers when the macro program “MACROA” is macro-expanded into the sequence program SP, “MACROA” is used.
-1 "device registration table DT1 and" MAC
ROA-2 ″ part device registration table DT2.

In the device registration table DT1, the device corresponding to the label vd0 is X0, the device corresponding to the label vd1 is Y100, the device corresponding to the label vd2 is Y101, and in the device registration table DT2, the device corresponding to the label vd0. Is X10, the device corresponding to the label vd1 is Y200, and the device corresponding to the label vd2 is Y201.

[0007] The macro expansion means 100 is provided with a sequence program SP “MACROA-1 START” and “MA
CROA END ”and device registration table D
The macro program “MACROA” is expanded based on the label-device correspondence registered in T1, and “MROA” is developed.
ACROA-2 START ”and“ MACROAEN
D ”, the macro program“ MACROA ”is developed based on the label-device correspondence registered in the device registration table DT2.

FIG. 56 shows a macro program expanding means 100.
Is a flowchart showing a macro expansion process according to the present invention. In the sequence program SP already macro-expanded, a process of correcting the macro program "MACROA" and then re-expanding the macro program "MACROA" will be described.

First, it is searched whether there is a program corresponding to macro expansion in the sequence program SP, that is, whether "MACROA" exists in the sequence program SP (step S2000).
If A "exists (Yes at Step S2010),
"MACROA-n" in the sequence program SP
The program description from “START” to “MACROA-n END” is deleted (step S2020), and the modified macro program “MACROA” is inserted into that part (step S2030), where n is 1 at first, and It becomes n + 1 every time the loop is repeated.

Next, the inserted macro program "M
ACROA "is searched for labels vd0, vd1, and vd2 (step S2040). If there is a label (step S2050), the device registration table DT
n, labels vd0, vd of the macro program MP
1 and vd2 are searched (step S2060), and if n = 1, the label vd0, label vd1, and label vd2 are set to the corresponding device X, respectively.
0, device Y100, and device Y101 (step S2070).

When the replacement of the device numbers is completed for all the labels, the developed macro program is converted to “MACROA-MAC” in order to associate the device registration table DTn with the developed macro program “MACROA”.
n ”(step S2080).

In the sequence program SP, the above-described processing from step S2010 to step S2080 is performed on all the programs corresponding to macro expansion, and the expansion processing ends.

FIG. 57 shows an example of mechanical equipment (extrusion production line) controlled by a programmable controller. This extrusion production line includes a first extruder 201, a second extruder 202, and a third extruder 203 arranged in a row.
And a conveyor device 2 extending in the arrangement direction of these extruders.
04.

Each of the first to third extruders 201 to 203 is provided with an extrusion cylinder 211 to 213, a backward end switch 221 to 223, and a forward end switch 231 to 233.

Position detectors 241 to 243 are provided at positions No. 1 to No. 3 where the conveyor device 204 corresponds to the first to third extruders 201 to 203, respectively.

Conventionally, a PC is often used to perform the above-described sequence control of the mechanical equipment. The PC program is called a sequence program, and it is common to use a ladder circuit or a list representing mnemonics of instructions.

The list program in the form of a list forms a one-line program by a combination of an instruction and a device number for executing the instruction. FIG. 58 shows a sequence program of a PC for performing the sequence control of the mechanical equipment shown in FIG.

This sequence program is created by using a command of a condition and a command of an operation when the condition is satisfied. The control program section A of the first extruder 201 and the control program of the second extruder 202 Part B and the third extruder 2
03, and a control program unit C. Although each of these control program units uses the same instruction,
Device numbers are different.

Next, a conventional method of programming a sequence program will be described with reference to FIGS.

In the conventional PC programming method, one basic circuit as shown in FIG. 59 (a) has a relay number and a coil number as shown in FIG. 59 (b). When creating a sequence program in which a plurality of different circuits are repeated by different numbers, it is necessary for the creator to program all of a plurality of identical circuits, and there has been a problem that programming takes time.

As one means for solving this problem, as disclosed in the aforementioned Japanese Patent Laid-Open No. Hei 5-189012,
A method is used in which a macro program and devices used therein are registered (hereinafter referred to as macro registration), relay numbers and coil numbers to be replaced are set and inserted into a sequence program (hereinafter referred to as macro diversion). .

As a display method when a macro is diverted in a sequence program, as shown in FIG. 60A, a method of displaying a macro as a symbol (hereinafter referred to as a symbol display), As shown in FIG. 60 (b), there is a method of expressing the state of a sequence program when a macro is registered (hereinafter referred to as a sequence circuit display). In the sequence circuit display, the comments "MACROA" and "MACR" indicating that the macro was diverted are displayed.
OA END "is added.

Here, an example will be given in which the creator attempts to add a contact point as a condition for executing a macro in the process of creating a sequence program.

Since the macro program is one independent circuit block, if the macro is diverted after writing the contact (X0) first, the previously written contact and the diverted macro become another circuit block, as shown in FIG. As has been done, they are not connected as one circuit. For this reason, the creator first diverts the macro as shown in FIG. 62A, and then places the contact included in the macro on the right side as shown in FIG. Shift, FIG. 62
As shown in FIG. 62 (c), it is necessary to write the contact X0 to be added and to adjust the vertical and horizontal lines so as to obtain a correct circuit as shown in FIG. 62 (d). .

Next, the prior art regarding the comment indicating the range of the macro will be described in detail below.

A comment indicating the range of the macro program is created when the macro is diverted. Therefore, in the case of a circuit in which a contact is added after diverting the macro, the actually registered macro program is exactly a part of the range indicated by the comment. However, the creator has decided to use the circuit shown in FIG.
Since the same comment is attached to the circuit corrected after the macro diversion in (d), it cannot be distinguished from the comment whether the circuit is a circuit registered as a macro or a corrected circuit.

FIGS. 63A and 63B show a PC and a PC.
2 shows a configuration of a programming device for PC and a screen display example in which a sequence program circuit is displayed on a monitor of the PC programming device. In FIG. 63 (a), 300
Denotes a PC programming device, 301 denotes a PC power supply unit, 302 denotes a CPU unit, and 303 denotes various PC units. The PC programming device 300 and the CPU unit 302 are connected by a cable 304.
Connected by

FIG. 63B shows a display example of a monitor screen of the PC programming device 300. In this screen display, “M.OUT” is a display of a registered macro circuit, a portion indicated by reference symbol D is a display of a normal sequence program circuit, “X0” and “X1” are input devices,
“Y10” and Y11 ”are output devices.

FIG. 64 shows an operation flow of a procedure for monitoring the operating state of the PC in the PC programming device.

In the PC programming device 300, P
When monitoring the operating state of C, first, as shown in FIG. 63A, the input devices X0 and X1 and the output devices Y10 and Y11 are acquired from the sequence program circuit displayed on the screen (step S1). S2100).

Next, the acquired input devices X0, X
1. The device values of the output devices Y10 and Y11 are transmitted from the CPU unit 302 to the PC via the cable 304.
Are sequentially read to the programming device 300 for use (steps S2110 to S2150).

It is determined from the read device value whether the corresponding device is conductive or non-conductive (step S212).
0), if it is conduction (ON), it is displayed in reverse video as in the input device X1 and the output device Y11 (step S213).
0), if it is non-conducting, it is not invertedly displayed like the input device X0 and the output device Y10 (step S214)
0).

FIG. 65 shows an example of a program of the ladder circuit, and FIG. 66 shows an example of a device controlled by the program of the ladder circuit shown in FIG.

Referring to FIG. 66, reference numeral 400 denotes a programmable controller; 401, a push button switch;
Reference numeral 2 denotes motors that operate while the push button switch 401 is pressed.

In the example of the ladder circuit program shown in FIG. 65, "X1" is a push button switch 401.
And "Y20" is a coil indicating the state of a switch for controlling the start of the motor 402.

When the push button switch 401 is pressed,
In the ladder circuit program shown in FIG. 65, the input device (contact point) X1 becomes conductive, the output device (coil) Y20 becomes conductive, and the motor 402
Starts.

The program of the ladder circuit shown in FIG. 65 includes a contact portion for describing a plurality of contacts which are operating conditions such as a push button switch and a limit switch, and a motor and the like are started when the operating conditions are satisfied. It consists of a coil unit that describes a plurality of switches, creates a circuit block by combining the contact unit and the coil unit, and describes the plurality of circuit blocks to control mechanical equipment.

As shown in FIG. 67, a conventional macro instruction registers a macro instruction by specifying a registration range in circuit block units, and as shown in FIG. 68, a macro instruction "M.MACRO". A circuit block consisting only of "" was created and diverted.

[0039]

Conventionally, when a macro program of a ladder circuit is developed into a sequence program, a change such as adding a part of the developed sequence program to replace the macro program portion in the sequence program is required. When the macro program expansion is performed after the execution, the changed part is also expanded, and in the conventional example as shown in FIG. 55, to correct the macro program by adding it to “MACROA-1” (“ MACROA
If it is desired to keep the current state without adding “−2”), it is necessary to newly create a macro program. As a result, a plurality of similar macro programs are created, and maintenance of the macro program becomes complicated. There was a problem.

FIG. 5 shows a conventional sequence program.
8, the control program section A of the first extruder 201, the control program section B of the second extruder 202, the control program section C of the third extruder 203, When the device numbers are different even if the same command is used, it is necessary to describe all programs, and there is a problem that it takes time to input the program.

Also, when the sequence program is modified during debugging, the entire program
Since correction is required, there has been a problem that errors during correction are likely to occur.

In the prior art, since the registered macro program is an independent circuit block, when registering a combination of sequence instructions for performing a certain control process as a macro program, an interface for performing the process is used. The condition part such as lock needs to be written in advance in the circuit block to be registered.Only the type of device differs, and the circuit pattern, contacts, and the number of coils are the same. Could be diverted.

However, the condition for performing a certain process may differ not only in the type of device but also in the combination of the number and conditions depending on the case where the registered macro program is diverted. FIG. 62
As illustrated in (a) to (d), after setting an input / output device or the like in the registered circuit block of the macro program to create the circuit block, the conditions are adjusted so that the circuit block is established. We needed to do some extra.

When the sequence program creator attempts to create a similar ladder circuit having a device different from the previously created circuit, a comment is added to the previously created ladder circuit (sequence program) indicating that it is a macro program. If so, consider creating a similar circuit by macro diversion. However, FIG.
As shown in (d), when the macro-diverted circuit indicated by the comment was actually edited, the next time the macro is diverted, the circuit is not the circuit intended by the creator, but is originally registered. Since the circuit before editing that has been used is diverted, there is a problem that a programming error is likely to occur such that the device to be replaced is replaced with a device at an unintended position.

In the prior art, the macro circuit is shown in FIG.
3. As shown in FIG. 64, since a plurality of devices are registered as a sequence program circuit, they are not treated as devices and cannot be monitored. Therefore, if a macro circuit is present when monitoring the operation status of the PC, whether the output of the macro circuit is conductive or non-conductive is determined directly from the display screen of the sequence program circuit in the PC programming device. There is a problem that it cannot be confirmed.

In the prior art, as shown in FIGS. 67 and 68, registration and diversion are performed in units of circuit blocks, so that a circuit having the same contact configuration and coil configuration as the registered macro instruction is created. However, there is a problem that the efficiency can be reduced only when it is used.

Further, when the relationship between the contact and the coil is established between a plurality of diverted macro instructions, the relationship must be separately programmed, which is inefficient.

The present invention has been made in view of the above-described problems. Even if a macro expansion is performed after a change such as addition of a part of the expanded sequence program is performed, the changed portion is macro expanded. Or create a program using pre-registered instructions so that the display can be easily switched between the program using the registered instructions and the program that expands the instructions. If you create a circuit that connects the conditions for executing the macro and the symbol expression macro, you can adjust the sequence program so that the circuits are connected correctly when displaying the sequence circuit, or connect the circuit that connects the contacts and the macro to the sequence circuit When displayed, the original macro instruction part that does not include the contact is displayed separately, or is it conducting as a macro circuit during monitoring? Can be checked directly from the sequence program circuit display screen to improve macro program creation efficiency, maintainability, and sequence program design efficiency. It is intended to provide a peripheral device for a controller.

[0049]

To achieve the above object, a peripheral device for a programmable controller according to the present invention comprises: a macro program registering means for registering a set of sequence programs as a macro program; and the macro program registering means. Device registration means for registering a device for expanding the macro program registered by the above into a sequence program, and correction registration means for registering the history of the macro expansion unit in the correction registration table when the macro expansion unit is corrected after being expanded into the sequence program And macro expansion means for, when the macro program is corrected, expanding the contents other than the part already corrected by the sequence program into the sequence program using the correction registration table of the sequence program.

In the peripheral device of the programmable controller according to the present invention, even if the macro program expanded in the sequence program is corrected and the macro program is expanded again, the corrected portion can be excluded from the expansion target.

A peripheral device for a programmable controller according to the next invention specifies instruction sequence means for designating a set of sequence programs and registering them as one instruction, and performs sequence processing using the instructions registered by the instruction registration means. And an instruction expansion processing means for creating a program.

In the peripheral device of the programmable controller according to the present invention, a group of sequence programs can be registered as one instruction, and a sequence program can be created using this instruction.

The peripheral device of the programmable controller according to the next invention is the same as the peripheral device of the above-mentioned programmable controller, except that the display of the sequence program created by the instruction expansion processing means is displayed by the registered instruction and the original series is displayed. Command display processing means for switching the display of the sequence program.

In the peripheral device for a programmable controller according to the present invention, in a sequence program created by using a command registered as one command by designating a group of sequence programs, the created sequence program is displayed on the screen of the peripheral device. When displaying,
By switching between the display with the registered instruction and the display of the original sequence program, a detailed analysis can be easily performed when analyzing the operation of the sequence program.

A peripheral device for a programmable controller according to the next invention comprises a macro diversion processing means for creating a circuit connecting a macro for executing a macro program and a symbol expression macro, and a macro diversion processing means created by the macro diversion processing means. And a sequence program adjusting means for adjusting a sequence program so that the circuits are correctly connected when a circuit in which conditions for executing the above are connected to a symbol expression macro is displayed as a sequence circuit.

In the peripheral device of the programmable controller according to the present invention, when a circuit in which a macro execution condition and a symbol expression macro are connected is created, the sequence program is adjusted so that the circuit is correctly connected when the sequence circuit is displayed. Can be.

In the peripheral device for a programmable controller according to the next invention, when a circuit connecting a contact and a macro program is displayed as a sequence circuit, an original macro instruction portion containing no contact is extracted and the original macro instruction not containing a contact is extracted. It has a macro range display processing means for performing a process of distinguishing and displaying parts.

In the peripheral device of the programmable controller according to the present invention, when the circuit connecting the contact and the macro is displayed as a sequence circuit, the original macro instruction portion not including the contact can be displayed in a distinguished manner.

A peripheral device of a programmable controller according to the next invention comprises an output device acquiring means for acquiring an output device from devices registered in a macro circuit, and a state of the output device acquired by the output device acquiring means. From the output device state obtained by the output device state obtaining means, and macro state display processing means for performing processing for displaying the conductive / non-conductive state of the macro circuit from the state of the output device obtained by the output device state obtaining means It is.

In the peripheral device of the programmable controller according to the present invention, the conduction / non-conduction state of the registered macro circuit can be displayed on the sequence program circuit display screen during monitoring.

A peripheral device for a programmable controller according to the next invention comprises a contact macro registration means for registering a circuit composed of a plurality of contacts as a contact macro command in programming a ladder circuit, a plurality of contacts and a plurality of coils or a plurality of coils. Coil macro registration means for registering a circuit consisting of the following as a coil macro instruction; a contact macro instruction registered by the contact macro registration means at a contact portion; and a coil macro instruction registered by the coil macro registration means at a coil portion. Macro diverting means.

In the peripheral device of the programmable controller according to the present invention, a circuit including a plurality of contacts is registered as a macro instruction, and the plurality of contacts and a plurality of coils or
Register a circuit consisting of multiple coils as a macro instruction,
These registered contact macro instructions can be used in combination with the contact part, and coil macro instructions can be used in combination with the coil part.
The program of the ladder circuit can be created by diverting the combination of the contact part and the coil part separately selected.

A peripheral device for a programmable controller according to the next invention is characterized in that, in programming of a ladder circuit, a block macro instruction registration means for registering one circuit block as a block macro instruction, and a block macro instruction registered by the block macro instruction registration means. Macro diversion means for combining and diverting the contact part and the coil part, and adding the device used for the coil of the block macro instruction described in the contact part as a contact before the block macro instruction described in the coil part and diverting it, It has.

In the peripheral device of the programmable controller according to the present invention, one circuit block is registered as a block macro instruction, and the registered macro instruction is combined with a contact portion and a coil portion to be diverted to a coil of the macro instruction described in the contact portion. The device used can be added as a contact before the macro instruction described in the coil section to divert the program.

[0065]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

(Embodiment 1) FIG. 1 shows an embodiment of a peripheral device of a programmable controller according to the present invention.

This peripheral device has a macro program registration unit 1, a device registration unit 2, a correction registration unit 3, and a macro expansion unit 4.

The macro program registration means 1 registers a set of sequence programs in the macro memory 5 as a macro program MP.

The device registration means 2 is a macro program M
P is the sequence program SP of the program memory 6
Are registered in the device registration table DTn of the macro memory 5. In the example of FIG. 1, as in the conventional example, "MACROA" is used as a correspondence table between labels and existing device numbers when the macro program "MACROA" is macro-expanded into the sequence program SP.
-1 "device registration table DT1 and" MAC
ROA-2 ″ part device registration table DT2.

When the macro expansion unit is modified after being developed into the sequence program SP, the modification registration unit 3 stores the history of the modification in the modification location registration table CT of the macro memory 5.
Register with. The correction location registration table CT exists for each macro expansion unit, and the example of FIG. 1 shows a table for MACROA-1. The correction location registration table CT includes a data field indicating the content of the correction (change, addition, deletion, movement),
It consists of data fields indicating these correction positions.

The correction location registration table CTa shows the state when the additional row is moved after the program, and the correction location registration table CTb shows the state when the additional row is justified and the correction row is reset. I have.

The macro expanding means 4 expands the macro program MP into the sequence program SP of the program memory 6 based on the label-device correspondence registered in the device registration table DTn,
When P is corrected, the contents are developed into the sequence program by using the corrected part registration table, except for the part already corrected by the sequence program SP.

FIGS. 2A to 2F show the state of the sequence program when the expanded macro program portion is modified by the user and the state when the macro program is expanded.

FIG. 2A shows the state of the program when the user changes “Y100” in “MACROA-1” of the sequence program SP to “Y300”.
(B) shows the sequence program SP “MACROA-
1 shows a state when the user adds “Y301” between “Y300” and “Y101”, and FIG. 2C shows that the user deletes “Y101” in “MACROA-1” of the sequence program SP. Fig. 2
FIG. 2D shows a state in which the added line is moved to the last line and the deleted line is made a blank line, and FIG. 2E shows a state in which the added line is moved forward and the corrected line is reset. f) shows the final state after macro expansion.

Next, the processing procedure in which the user changes (modifies) the sequence program will be described with reference to the flowchart shown in FIG.

When the user selects "Y" in the sequence program SP
When “100” is changed to “Y300” (step S1
0), the correction registering means 3 registers the corrected rows, columns, and corrected contents in the corrected part registration table CT (step S2).
0).

Next, the user enters the sequence program S
When "Y301" is added to the next row of "Y300" of P (step S30), the correction registration unit 3 registers the added row, column, and correction content in the correction location registration table CT (step S40).

Next, the user enters the sequence program S
When "Y101" is deleted from P (step S50),
The correction location registration means 3 registers the deleted row, column, and correction content in the correction location registration table CT (step S60), and ends.

Next, the macro expansion processing after the user modifies the sequence program will be described with reference to the flowcharts shown in FIGS.

First, the preprocessing of macro expansion will be described with reference to FIG. A search is made for a portion whose correction content is “added” from the correction portion registration table CT (Step S).
100), if there is “addition” (step S11)
0 is affirmative), the added program is added to the deleted line or after the larger line of the sequence program "MACROA-1", and the original line is set as a blank line in the corrected portion registration table CTa as the corrected line, column, and correction. The content "move" is registered (step S120).

Next, a portion whose correction content is "deleted" is searched from the correction portion registration table 2 (step S).
130), if there is “deletion” (step S14)
0 affirmative), and set the deleted line as a blank line (step S15).
0), a program (refer to FIG. 2E) in which the line whose correction content is “deleted” is deleted and left justified is created, and the corrected lines and columns after the left justification in the correction portion registration table CTa are moved forward. The correction location registration table CTb is created by re-registering with the rows and columns deducted from the filling row (step S160).

Next, the macro expansion processing will be described with reference to FIG. A search is performed to determine whether there is a program to be subjected to macro expansion processing in the sequence program SP (whether “MACROA” is present in the sequence program SP) (step S170). Macro program M
The label in P is searched (step S190).

If there is a label to be subjected to macro expansion processing (Yes at step S200), it is searched whether the label position is registered in the correction location registration table CT (step S210). For example, since the position of the label vd0 is not registered in the correction location registration table CTb (“0, 0” is not registered as the correction row and column No.), it is considered that the position has not been corrected by the user (step S220). No), the device No. corresponding to the label is searched from the device registration table DT1 in the same manner as in the related art, as in the case of the related art (step S230).
The macro program is expanded by exchanging the device number of the sequence program SP with the device number registered in the device registration table DT1 (step S24).
0).

On the other hand, the next label vd1 to be subjected to macro expansion processing is added to the correction location registration table CTb.
Since “0, 12” is registered as the correction row and column No (Yes at step S220), it is determined whether the registered correction content is “change” or “delete” (step S25).
0). Since the modification content of the label vd1 is "changed", the label vd1 is regarded as a location modified by the user and is excluded from the target of the macro expansion processing, and the modified sequence program SP
Leave the contents of. Similarly, for the label vd2, "1, 12" is registered as the correction row and column No. in the correction location registration table CTb (step S2).
20 is affirmative), it is determined whether the registered correction content is “change” or “delete” (step S250). Label vd1
Since the content of the modification is "delete", it is regarded as a portion modified by the user and is excluded from the macro expansion processing, so that the content of the modified sequence program SP is left.

Steps S190 to S250 are performed for all the labels of the macro program MP, and when the macro expansion processing is completed, post-processing is performed.

As post-processing, the correction location registration table C
"Delete" is retrieved from Tb (step S260), and if there is a deleted line (Yes at step S270), the program at the delete position is restored with a blank line, so that this is deleted. In this example, the correction row, column No. Since the position of “1, 12” is “delete”, the target line is deleted and the data is justified (step S280).

FIG. 2F shows the state of the sequence program 10 after the deletion. As described above, since the state before the macro expansion processing is obtained, the correction location registration table C
Tb is returned to the original correction location registration table CT so that it can be used in the next macro expansion processing (step S290),
The process ends.

The contents modified by the user are recorded in this way, and the parts other than the modified part are developed at the time of macro development, so that macro development is performed after making a change such as adding a part of the developed sequence program. However, since the changed part is not to be expanded, there is no need to newly register a macro program corresponding to the corrected part, thereby improving development efficiency and maintainability.

(Embodiment 2) FIGS. 6 and 7 show an embodiment of a peripheral device (programming device) for a sequence program according to the present invention. The programming device includes an auxiliary storage device 10, a display 11 such as a CRT, a keyboard 12 as input means, an instruction registration processing unit 13, an instruction development processing unit 14, an instruction display processing unit 15, a device number It has a position counter 16, a read-out row counter 17, an instruction storage memory 18, a sequence program storage memory 19, a used device storage memory 20, and a search position counter 21.

The instruction registration processing section 13 designates a set of sequence programs, and registers them in the auxiliary storage device 10 as one instruction. In the instruction registration, a unique instruction name is defined for each instruction. The instruction name is input by text input from the keyboard 12 on a screen as shown in FIG. The instruction name is displayed on the screen, and is determined by the enter key input or the like.

The instruction expansion processing unit 14
The instruction registered and stored in the memory is read out to the instruction storage memory 18, and a sequence program is created using the registered instruction.

The instruction display processor 15 displays the created sequence program on the screen of the display 11
A process of switching between display by the registered instruction and display by the original sequence program is performed.

FIG. 9 shows a group of sequence programs to be registered as one instruction. This sequence program is a sequence program of one reciprocating operation of the extrusion cylinder of the extruder in the conventional example shown in FIG.

The sequence program as described above is processed by the instruction registration processing unit 13 into one instruction (instruction program).
Can be registered as FIG. 10 shows an example in which the sequence program of FIG. 9 is registered as an instruction name “PUSHER”. Note that a specific example is shown in parentheses in FIG.

This instruction is a character string (;
Command PUSHER), a line declaring the number of arguments (; argument 5), an argument definition area (; VD1 to VD5), a program area (LD to RST), and a character string indicating the end of the instruction (; instruction END) Have been. The program area (LD to RST) indicates the device number in the sequence program shown in FIG.
VD1 to VD5) are represented by virtual devices (variable definitions VD1 to VD5) having the same names as the arguments (functions) defined in VD1;
Arguments are passed here.

FIG. 11 shows an example of a sequence program including registered instructions. This sequence program is created by the user for the entire sentence, and is a sequence program for the same sequence operation as that of the conventional example shown in FIG. In this sequence program, each of A, B, and C in the conventional example
It is replaced by the statement on the first line, the sixth line and the ninth line. This statement consists of a command name and an argument.
In the line, “PUSHER” is the instruction name and “M100
Y101 X101 Y100 X100 "is the argument.

The used device storage memory 20 stores a used device table as illustrated in FIG. This used device table is equivalent to the device registration table, and has a label corresponding to a virtual device (function name) and a device No (argument) in which a used device actually exists.

FIG. 12 shows the instruction expansion processing unit 14 of FIG.
2 shows a sequence program after the instructions of the first sequence program are expanded. In FIG. 12, part A is an expanded part of the instruction on the third line of the sequence program of FIG. 11, and part B is part 6 of the sequence program of FIG.
This is the expansion unit of the instruction on the line, and part C is the expansion unit of the instruction on the ninth line of the sequence program in FIG.

In the part A, each function name VD1, VD2, VD
Device number M as an argument after D3, VD4, VD5
100 Y101 X101 Y100 X100 are described, which are each passed to the variable definition.

The used device storage memory 20 stores a used device table as illustrated in FIG. This used device table is equivalent to the device registration table, and the label corresponds to a virtual device (function name).
This corresponds to the device number (argument) in which the used device actually exists.

Next, the operation will be described. First, a program to be registered as an instruction is created. When creating this program, for example, it is created as shown in FIG. 9 as a sequence program of the mechanical equipment shown in FIG. 63, and the created sequence program is registered in the auxiliary storage device 10. This registration is performed, for example, by inputting an instruction name from the keyboard 12 on a screen display as shown in FIG. When the registration is executed, an instruction registration processing routine by the instruction registration processing unit 13 is started.

This instruction registration processing routine is shown in FIG. 14. First, a character string of ";instruction" and an instruction name input on the screen display as shown in FIG. It is stored in the device 10 (step S300, step S310).

Next, it is determined whether or not the program is the last (step S320). If it is not the last (No at step S320), the device number of the current line of the program (shown in FIG. 9) is fetched (step S330), and the fetched device number is used as shown in FIG. It is confirmed whether or not it has been registered in the device table (step S340).

If not registered (step S35)
0 negative), the device number is set to the device number counter 1
6 is additionally registered at the designated position of the counter of the used device table (step S360).

Next, the number of the counter designated position in the used device table is replaced with a device number as a virtual device (step S370).

Steps S330 to S370 are repeated until it is determined that the program is at the end. If it is determined that the program is at the end (Yes at step S320), the character string of ";argument" and the used device table are registered. The number n of the obtained device numbers is sequentially stored in the auxiliary storage device 10 (step S380).

Next, "; VD for the number of device numbers"
The virtual device of n ″ is stored in the auxiliary storage device 10 (step S390).

Next, the program statement (sequence program) is stored in the auxiliary storage device 10 (step S40).
0) Finally, the character string of “; instruction END” is stored in the auxiliary storage device 10 (step S410), and the process ends.

Thus, the registered instruction is a program description as shown in FIG.
0 is stored.

When a sequence program using registered instructions is created, a sequence program including an instruction statement is created as illustrated in FIG.

When a sequence program created as shown in FIG. 11 is displayed on a programming device, it is possible to switch between a normal display and a display in which instructions are expanded and a display mode. For example, as shown in FIG. 7, it is possible to adopt a configuration in which the display mode is switched by operating the function key F1 of the keyboard 12.

The sequence program created as shown in FIG. 11 is stored in the sequence program storage memory 19, and when the display mode is switched,
The instruction expansion routine is executed by the instruction expansion processor 14 as shown in FIG.
Are executed according to the flowchart shown in FIG.

In the instruction expansion routine, first, the read line of the sequence program by the read counter 17 is set to "1".
(Step S500).

Next, it is determined whether or not it is the last line (step S510). If it is not the last line (Yes at Step S510), the instruction (character string) of the current read line is read (Step S520), and the auxiliary storage device 10 is read.
It is searched whether the instruction read from is registered (step S530). If it is determined that they do not match (No at Step S540), the number of rows read by the read counter 17 is increased by one (Step S630), and Step S51 is performed.
Return to 0.

On the other hand, if it is determined in the search that they match (Yes in step S540), the instruction program is read from the auxiliary storage device 10 to the instruction storage memory 18 (step S550). The read program is a registered program, which is, for example, a program as shown in FIG.

Next, the device number position by the device number position counter 16 is initialized to "1" (step S560).

Next, it is determined whether or not the argument number n is smaller than the device number position by the device number position counter 16 (step S570).

When it is determined that the argument number n is smaller than the device number position (Yes at step S570), the device number at the current device number position is read from the program (instruction line) of FIG. 11 (step S580), and The corresponding virtual device VDn is replaced with the read device number (step S590), and the replaced device number is inserted into the portion of the virtual device corresponding to the device number position in the argument definition area (step S60).
0).

Next, the device number position is incremented by one by the device number position counter 16 (step S61).
0), the process returns to step S570, and steps S580 to S580 until the number of arguments n is determined to be larger than the device number position.
S610 is repeated.

If it is determined that the number of arguments n is larger than the device number position (No at Step S570), the instruction of the current read line is replaced with the program of the instruction storage memory 18 (the program as shown in FIG. 10) (Step S570). S620).

Next, the number of rows read by the read counter 17 is increased by one (step S630), and step S51 is performed.
Returning to 0, if it is determined that it is the last line (Yes at Step S510), the process ends.

In this way, the sequence program including the instruction as shown in FIG. 11 is developed into the sequence program as shown in FIG. 12, and this program is stored in the sequence program storage memory 19. It is displayed on the display 11.

When displaying a sequence program after instruction expansion as shown in FIG. 12 by a registered instruction program, an instruction display processing routine by the instruction display processing unit 15 is shown in FIG. It is executed according to such a flowchart.

In the instruction display routine, first, the read line of the sequence program by the read counter 17 is set to "1".
(Step S700).

Next, it is determined whether or not it is the last line (step S710). If it is not the last line (No at Step S710), the command (character string) of the current read line is read (Step S720), and it is determined whether or not the character string is “; command” (Step S730). If the character string is not “; instruction” (No at Step S730), the number of lines read by the read counter 17 is increased by one (Step S840), and the process returns to Step S710.

If the character string is ";instruction" (Yes at step S730), the instruction name following the character string of ";instruction", for example, "PUSHER" is extracted (step S7).
40).

Next, the extracted instruction name is stored in the instruction storage memory 18 (step S750), and the device number in the argument area is stored after the instruction name in the instruction storage memory 18 (step S760).

Next, the search position by the search position counter 21 is initialized to "1" (step S780).

Next, it is determined whether or not the command (character string) at the current search position matches "; command END" (step S790). If not (No at Step S790),
The instruction (line) at the current search position is deleted (step S80)
0), the search position by the search position counter 21 is increased by one (step S810), and the process returns to step S790.

If the command (character string) at the current search position matches "; command END" (Yes at step S790), the command (line) at the current search position is deleted (step S820), and the current reading is performed. The instruction of the line is stored in the instruction storage memory 1.
8 (step S830), the readout line of the sequence program by the readout counter 17 is incremented by one (step S840), the process returns to step S710, and when the last line is determined, the process ends.

The developed sequence program (FIG. 12) is converted into a program using instructions as shown in FIG. 11, stored in the sequence program storage memory 19, and displayed on the display unit 11. Is displayed.

In this embodiment, in a sequence program represented by a list, a program can be created using instructions registered in advance, and a program using the registered instructions and a program expanding the instructions Can be easily switched and displayed.

(Embodiment 3) FIG. 17 shows another embodiment of a sequence program peripheral device according to the present invention. This peripheral device includes a macro registration unit 30, a device registration table storage memory 31, a macro diversion processing unit 32, a symbol display processing unit 33, a sequence program adjustment processing unit 34, a sequence circuit display processing unit 35, a CRT And the like.

The macro registration means 30 stores a circuit area to be registered in the macro designated in the program, for example, as shown in FIG. 18, a circuit under the name "A" as one macro program. The registered device of the program is replaced with a virtual device according to the device registration table stored in the device registration table storage memory 31, and a macro program for macro reuse as shown in FIG. 19 is registered.

The device registration table written in the device registration table storage memory 31 is illustrated in FIG. The device registration table is a device registration table for registering a device (registered device) to be changed by a creator when diverting a macro among devices used in a macro program to be registered when performing macro registration. , The virtual devices VD1, VD2... Are given to the registered devices Xn, Yn, and comments can be written to the registered devices Xn, Yn so as to determine what kind of device was used when the macro was diverted. It has become.

When the creator designates to divert the macro A after the devices X0 and X1, the macro diversion processing means 32 stores the macro A circuit registered in the macro registration means 30 and the device registration table storage. The device registration table of the memory 31 is read into the internal memory, and a process of displaying a device diversion table as shown in FIG. 21 on the display 36 based on the device registration table is performed. , A virtual device in the circuit registered as a macro is replaced with a device specified by the creator based on the device diversion table.

The device diversion table is used to specify a device after change for a device registered as a virtual device in the device registration table when performing macro diversion.

As shown in FIG. 22, the symbol display processing means 33 performs a process of displaying the circuit A, which has been diverted from the macro, following the device X1 on the display 36 with "[MA]" as a symbol. FIG. 22 is a symbol representation of a circuit to which contacts X0 and X1 are added as conditions for executing the macro "A".

Sequence program adjustment processing means 34
As shown in FIG. 22, when a circuit is created by connecting a macro for symbol execution and a condition for executing a macro, a sequence program is adjusted so that the circuits are correctly connected when the sequence circuit is displayed. I do. Here, adjusting the sequence program so that the circuits are connected correctly means adjusting the circuit display of the incomplete connection as shown in FIG. 23 to the fully connected circuit as shown in FIG. .

The sequence circuit display processing means 35 performs processing for displaying the sequence circuit on the display 36 as shown in FIG. 24 based on the sequence program adjusted by the sequence program adjustment processing means 34. In FIG. 24, a portion indicated by a symbol a is a sequence circuit display portion of the macro A.

Next, the operation of the peripheral device according to this embodiment will be described with reference to the flowcharts shown in FIGS.

Referring to FIG. 25, a description will be given of a processing flow for macro-registering a circuit to be registered.

The creator specifies a range of a circuit to be registered as a macro in the program (step S900). Here, the entire range enclosed by the rectangle in FIG.

Next, the creator specifies a device to be changed when the macro is diverted. The device to be registered is represented by a virtual device, and the creator specifies a device to be registered (registered device) and a comment for determining what kind of device it was when diverted, corresponding to the virtual device. This creates a device registration table as shown in FIG. 20 (step S
910). Here, the devices used in the macro registration circuit shown in FIG. 18, X10, X11, X12,
Y20 and Y21 are designated as virtual devices as devices for macro registration.

Next, the registered device specified by the creator is replaced with a virtual device by the macro registration means 30, and a circuit as shown in FIG. 19 is created (step S920), and this is registered as a macro A. .

A processing flow for diverting a macro will be described with reference to FIG. The devices X0, X in FIG.
If the specification to divert macro A is made after 1
The macro A circuit that has been registered and registered in the macro and the device registration table stored in the device registration table memory 31 are read out to the memory of the macro diversion processing unit 32 (step S1000).

Next, the device diversion table of FIG. 21 is displayed on the display 36 based on the device registration table as shown in FIG. The creator specifies a change device of the device diversion table corresponding to each virtual device with reference to the comment description. With this designation, the macro diversion processing unit 32 replaces the virtual device in the circuit registered with the macro with the device specified by the creator based on the device diversion table (step S1010).

Here, the devices at the time of macro registration are “X10, X11, X12, Y20, Y2” in FIG.
1 ”, which is represented by“ X20, X2 ”in FIGS.
1, X22, Y30, Y31 ".

Next, a macro circuit diverted from the macro following the device X1 is written into the program, and the symbol diverted circuit is used by the symbol display processing means 33 as shown in FIG. [MA]] is performed to display a symbol.
This is displayed on the display 36 (step S102).
0).

In order to display a circuit, data of a contact point and a coil are sequentially created on the memory at coordinates with the upper left being (0, 0). In a circuit in which the data is stored in the memory before being displayed on the display 36, the coil command is also created left-justified following the contact, and this is displayed on the display 36.
Is adjusted so that the coil instruction is displayed at the right end. The macro instruction is handled as a coil instruction when displaying a symbol, and is displayed on the right end when displayed on the display 36.

When displaying a sequence circuit, a macro circuit is created in the circuit data on the memory. At this time,
The coordinates to be actually created are (2, 0) following the device X1, but the coordinates (2, 0) are used as internal processing.
Is (0, 0) and circuit data is created. Then, the circuit on the memory at the time of creating the macro part is in a state where the circuit is not connected as shown in FIG.

Therefore, it is determined whether or not the contact in the leftmost column of the macro A is composed of two or more circuit rows (step S1030). Here, since the contact in the leftmost column of the macro A is formed of three circuit rows by three contacts X20, X21, and X22 (Yes in step S1030), the sequence program adjustment processing means 34 causes A process of drawing a vertical line connecting the uppermost circuit row to the lowermost circuit row is performed (step S1040). Here, in the transition state circuit shown in FIG. 23, X20 to X22 are connected by a vertical line.

As a result, the sequence circuit display processing means 3
5 is a sequencer circuit in which the circuits as shown in FIG.
6 is displayed.

(Embodiment 4) FIG. 27 shows another embodiment of a sequence program peripheral device according to the present invention. In FIG. 27, portions corresponding to those in FIG. 17 are denoted by the same reference numerals as those in FIG. 17, and description thereof will be omitted.

In this embodiment, a macro range display processing means 37 is provided in addition to that of the third embodiment. The macro range display processing means 37 extracts the original macro instruction portion and displays the original macro instruction portion which does not include the contact when the circuit connecting the contact and the macro is displayed as a sequence circuit as shown in FIG. Perform the process of distinguishing and displaying.

Next, the flow of the macro range display processing by the macro range display processing means 37 will be described with reference to FIG.

First, the X coordinate next to the rightmost column contact point before the macro A and its Y coordinate are defined as macro start coordinates (SX, SY).
(Step S1100). The coordinates are counted as (0, 0) at the upper left. Here, FIG.
Is the contact point in the rightmost column, and its coordinates are (1, 0), so the macro start coordinates are (2, 0).

Next, the lower right coordinate when the macro A is displayed from (0, 0) is stored as (MX, MY) (step S1110). Here, the device Y21 in FIG. 18 is the lower right coordinates, and it is assumed that ten contacts and coils are horizontally displayed.
Are (9, 2).

Next, the macro end coordinates are calculated (step S1120). The macro end coordinates are expressed by the following formula. That is, macro end coordinates (EX, EY) = (MX, SY + MY). Applying this to FIG. 24, (EX, EY) = (9, 0 + 2) = (9, 2) is the macro end coordinate.

Next, a rectangular range having the macro start coordinates (SX, SY) at the upper left and (EX, EY) at the lower left is determined as the macro range (step S1130), and the macro range is displayed in reverse video. It is displayed by a method such as enclosing it in a rectangle (step S1140).

By the above-described processing, a macro range can be distinguished from a circuit displayed as a sequence circuit.

(Embodiment 5) FIG. 29 shows another embodiment of a peripheral device (programming device) for a sequence program according to the present invention. In FIG. 29,
Reference numeral 40 denotes a PC programming device, 41 denotes a PC power supply unit, 42 denotes a CPU unit, and 43 denotes various PC units. The PC programming device 40 and the CPU unit 42 are connected by a cable 44. ing.

The PC programming device 40 includes a programming processing unit 51, an internal memory 52 for storing the configuration (device) of the macro circuit as shown in FIG. 30, as shown in FIG. 31, and a display. Unit 53, an output device obtaining unit 54 for obtaining an output device from the devices registered in the macro circuit, and an output device state obtaining unit 55 for obtaining the state of the output device obtained by the output device obtaining unit 54 from the programmable controller. And a macro state display processing unit 56 that performs a process of displaying the conduction / non-conduction state of the macro circuit on the display unit 53 from the state of the output device acquired by the output device state acquisition unit 55.

FIG. 32 shows an example of a screen display in which the sequence program circuit is displayed on the display unit 53 in the PC programming device. In FIG. 32, an N portion is a display of a normal sequence program circuit, and is denoted by “MO”.
UT "is a display of the registered macro circuit, and M is a detailed display of the macro circuit. The output device in this macro circuit is" Y20 ".

In this screen display, the output device status acquisition unit 5 is displayed by the display process by the macro status display processing unit 56.
From the state of the output device obtained in step 5, the display is inverted if the macro circuit is conductive, and non-inverted if the macro circuit is non-conductive.

Next, a procedure for monitoring the operating state of the PC in the PC programming device will be described with reference to FIG.

First, a device is acquired from the sequence program circuit displayed on the screen as shown in FIG. 32 (step S1200).

Next, it is confirmed from the sequence program circuit on the screen display whether or not a macro circuit is included (step S1210). If a macro circuit is included in the sequence program circuit on the screen display (Yes at step S1210), the output device acquisition unit 54 of the PC programming device 40 searches the internal memory 52 for an output device of the corresponding macro circuit (step S1210). Step S1220).

If an output device is found (Yes at step S1230), the found output device is added to the device displayed on the screen (step S124).
0).

Next, when the detailed display of the macro circuit is designated (Yes at step S1250), the input device of the corresponding macro circuit is searched from the internal memory 42 of the PC programming device 40 (step S1260). If the input device is found (step S1270)
No), the found input device is added to the device displayed on the screen (step S1280), and the corresponding input device, output device and circuit symbol are displayed on the screen (step S1290).

Next, the obtained device value (device status information) of each device is read from the CPU unit 42 of the PC to the PC programming device 40 via the cable 44 (step S1300). It is determined whether the corresponding device is conductive or non-conductive based on the device value read in this way (step S1310). If the device is conductive, it is displayed in reverse video as devices X1 and Y11 (step S132).
0), if it is non-conducting, the display is not inverted as in the devices X0 and Y10 (step S1330). Thereafter, it is determined whether or not all devices have been completed (step S1340),
If it is determined that the processing has not been completed (step S134)
0 negative), returning to step S1310 to continue the processing,
On the other hand, if it is determined that the processing has been completed (Step S134
(0 affirmation), the series of processing ends.

In the case of a macro circuit, the output device status obtained by the output device obtaining unit 54 is obtained by the output device status obtaining unit 55. If the device value of the output device registered in the macro circuit is conductive, The macro circuit is displayed inverted, and if it is not conductive, it is not displayed inverted.
When the detailed display of the macro circuit is designated, if it is conductive, it is inverted and displayed like devices X4 and Y20, and if it is not conductive, it is not inverted and displayed like device X3.

By specifying the output device of the macro circuit registered as described above as a device to be monitored and reading the device state from the PC, the conduction and non-conduction of the macro circuit can be displayed during monitoring.

(Embodiment 6) FIG. 34 shows another embodiment of a peripheral device (programming device) for a sequence program according to the present invention. The programming device includes a processing unit 60, a memory 61, a keyboard 6
2 key input control unit 63, screen display control unit 65 of display 64, auxiliary storage device control unit 67 of auxiliary storage device 66
And

The processing section 60 includes a programming processing section 71 for the ladder circuit and a macro instruction (hereinafter referred to as a contact macro instruction) for programming a circuit composed of a plurality of contacts (circuits indicated by hatching in FIG. 36) in programming the ladder circuit. And a contact macro instruction registering section 72 for registering the contact macro instruction as a macro instruction (hereinafter referred to as a coil macro instruction). And a macro diversion unit 74 that diverts the registered contact macro instruction to the contact part and diverts the coil macro instruction to the coil part in combination.

FIG. 35 shows an example of a ladder circuit. In this ladder circuit, the contact devices X0 and X1 are program ranges to be registered as contact macro instructions, as indicated by hatching in FIG. 36, and the coil devices Y0 and Y1 Figure 3
As indicated by hatching in FIG. 7, this is a program range to be registered as a coil macro instruction. These macro instructions are
As shown in FIG. 38, in the case of a macro instruction name, for example, a contact macro instruction, “M.LD” is set.

FIG. 39 shows a contact macro instruction M. LD and coil macro instruction 4 shows an example in which a circuit is created by using a contact macro instruction M.OUT. Figure 4 shows the registered contents of LD.
2 (c), the coil macro instruction M. The registered contents of OUT are shown in FIG.

FIG. 40 shows a processing flow in which the contact macro command registration unit 72 and the coil macro command registration unit 73 register the contact macro command and the coil macro command from the ladder circuit. When registering a contact macro instruction and a coil macro instruction, first, a ladder circuit (program) as shown in FIG. 35 is created by a ladder circuit programming device and is displayed on the display 64 ( Step S1400).

Next, as shown in FIG. 36, the circuit data portion to be registered as a contact macro or FIG.
As shown in FIG. 7, a circuit data portion to be registered as a coil macro is specified (step S1410). Next, the circuit designated as a contact macro or a coil macro is converted into a complete circuit block including a contact portion and a coil portion (step S1420).

Next, in the screen display as shown in FIG. 37, the contact macro command or the name of the coil macro to be registered is input and set from the keyboard 62 (step S).
1430). FIG. 37 shows that the name of the contact macro instruction is “ML”.
This is an example when D "is set.

Next, as the contact macro command or the coil macro command, the circuit data obtained by converting the registered circuit data into a complete circuit block, and the input contact macro command name or the coil macro command name are stored in the auxiliary storage device 6.
6 (step S1440). The recording method is the same as the conventional method of recording a macro instruction for a circuit block, and thus the description thereof is omitted.

As shown in FIG. 36, the processing procedure for converting a designated circuit into a complete circuit block consisting of a contact portion and a coil portion as a contact macro instruction is shown in FIGS.
This will be described with reference to FIGS.

First, a vertical bar is drawn from the uppermost line on the right end of the registration unit to the lowermost line of the horizontal bar extending from the right end of the registration unit (step S1500). In the circuit data of the registration unit shown in FIG. 42A, there is no change because there is a vertical bar from the beginning to the right end.

Next, the right end of the registration section is examined from top to bottom, and the right bar is deleted (step S1510). By this processing, the circuit data of the registration unit shown in FIG.
The right bar at the right end is deleted as in the circuit data shown in FIG.

Next, a complete circuit block is created by adding a dummy coil DM (step S1520). By this processing, the circuit data shown in FIG.
Complete circuit block data having a contact portion and a coil portion like the circuit data shown in FIG. As shown in FIG. 37, as a coil macro instruction, a processing procedure for converting a specified circuit into a complete circuit block including a contact portion and a coil portion is shown in FIGS. 43 and 44 (a) to (d). I will explain.

First, a vertical bar is drawn from the uppermost line at the left end of the registration unit to the lowermost line of a horizontal bar extending from the left end of the registration unit (step S1600). By this processing, the circuit data of the registration unit shown in FIG. 44A is converted into the circuit data shown in FIG.

Next, the registration section is checked from the left end to the top, and the left bar is deleted (step S1610). By this processing, the circuit data shown in FIG.
Is converted into the circuit data shown in FIG.

Next, a dummy contact DM is added to complete one circuit block (step S1620). By this processing, the circuit data shown in FIG.
Like the circuit data shown in (d), it is complete and complete circuit block data having a contact portion and a coil portion. A processing procedure for creating a ladder circuit program using the contact macro instruction and the coil macro instruction by the macro diversion unit 74 will be described with reference to FIG.

First, the contact macro instruction M.1 shown in FIG. LD and coil macro instruction OUT
(Step S170)
0). The method of creating the circuit data is the same as the method of creating a ladder circuit program using ordinary instructions, and a description thereof will be omitted. Next, a contact macro command and a coil macro command are developed (step S1710).

The development process is performed according to the flowchart shown in FIG. Contact macro instruction M. The registered circuit data of the LD is shown in FIG. In the case where the circuit registration data of OUT is as shown in FIG. The circuit data of the LD is read from the auxiliary storage device 66 into the memory 61 (step S1800).

Next, the contact macro instruction M. The dummy coil DM is deleted from the LD (step S1810). By this processing, the circuit data becomes
2 (b).

Next, the coil macro instruction M. The circuit data of OUT is read from the auxiliary storage device 66 into the memory 61 (step S1820). Next, the coil macro instruction M. The dummy contact MD is deleted from the circuit data of OUT (step S1830). With this processing, the circuit data becomes as shown in FIG.

Next, FIG. 44 with the dummy contact MD removed.
The circuit data of the coil macro instruction shown in (c) is inserted into the circuit data of the contact macro instruction shown in FIG. 42B from which the dummy coil MD has been deleted (step S1840). With this processing, circuit data as shown in FIG. 47A is obtained. Next, the circuit data of the contact macro instruction and the inserted coil macro instruction are connected by a horizontal bar to create expanded circuit data, which is displayed on a display (step S1850). With this processing, the circuit data shown in FIG. 47B is created.

As a result, the contact macro instruction and the coil macro instruction can be registered and selected, and can be used in combination, thereby increasing the structure of circuit data that can be used in combination.

(Embodiment 7) FIG. 48 shows another embodiment of a peripheral device (programming device) for a sequence program according to the present invention. In FIG. 48, portions corresponding to those in FIG. 34 are denoted by the same reference numerals as those in FIG. 34, and description thereof is omitted.

In this embodiment, the processing section 60 includes a ladder circuit programming processing section 71, a block macro registration section 75 for registering one circuit block as a block macro instruction in programming of the ladder circuit, and a block macro registration section. The block macro instruction registered in step 75 is combined with the contact part and the coil part and diverted, and the device used for the coil of the macro instruction described in the contact part is added as a contact before the macro instruction described in the coil part. And a macro diversion unit 76 to be diverted.

The circuit data registered by the block macro registration unit 75 as a block macro instruction includes the data shown in FIGS.
There is something like that shown in Here, the name of the block macro instruction based on the circuit data shown in FIG. 49 is registered as “MM1”, and the name of the block macro instruction based on the circuit data shown in FIG.
M ". The method of registering these block macro instructions is the same as in the conventional method, and a description thereof will be omitted.

FIG. 51 shows an example of circuit data created by using a block macro instruction in combination with a contact portion and a coil portion. Next, a procedure for creating circuit data using a block macro instruction and expanding a macro will be described with reference to FIG.

First, as shown in FIG. 51, circuit data using a block macro instruction is created (step S1910). The method of creating the circuit data is the same as the method of creating a ladder circuit program using ordinary instructions, and a description thereof will be omitted.

Next, the block macro instruction M.1 of the contact portion of the circuit data created in the previous step is executed. The circuit data of M1 is read from the auxiliary storage device 66 to the memory 61, and the block macro instruction of the contact portion is expanded (step S192).
0).

Next, the block macro instruction M. The device used for the coil instruction is searched from the circuit data of M1, the devices Y0 and Y10 are written in the memory 61, and a used device data list as shown in FIG. 53 is created (step S193).
0). The circuit data read into the memory 61 is displayed on the display 64.

Next, circuit data (see FIG. 54 (a)) for activating a macro instruction described in the coil portion using the device of the created device data list as a contact point of the activation condition is created in the memory 61 (step S1). S194
0).

Next, the macro instruction with the activation condition shown in FIG. 54A is developed by the same method as that described in the third embodiment (step S1950). As a result, as shown in FIG. 54 (b), the device used for the macro instruction coil described in the contact portion is
A ladder circuit program developed by adding a contact as a contact before the macro instruction described in the coil section is created.

[0204] Thus, the registered macro instruction is combined with the contact part and the coil part, and is diverted. The device used for the coil of the macro instruction described in the contact part is contacted before the macro instruction described in the coil part. In order to create a program to be diverted and added, it is not necessary to separately describe the relationship between the macro instruction of the contact portion and the macro instruction of the coil portion.

[0205]

As can be understood from the above description, according to the peripheral device of the programmable controller according to the present invention, even if a macro program is developed after a change such as adding a part of the developed sequence program is performed. Since the changed portion is not subject to expansion, there is no need to create a new macro program, and this has the effect of improving maintainability.

According to the peripheral device of the programmable controller according to the next invention, there is an effect that a program can be created using instructions registered in advance in a sequence program represented by a list.

According to the peripheral device of the programmable controller according to the next invention, there is an effect that the display can be easily switched between the program using the registered instruction and the program in which the instruction is expanded.

According to the peripheral device of the programmable controller according to the next invention, when a circuit connecting the macro execution condition and the symbol expression macro is created,
Since the sequence program is adjusted so that the circuits are correctly connected when the sequence circuit is displayed, there is an effect that the work of programming with a condition added before the macro is reduced.

According to the peripheral device of the programmable controller according to the next invention, when a circuit connecting a contact and a macro is displayed in a sequence circuit, the original macro instruction portion not including the contact is displayed in a distinguished manner. And the part other than the macro can be clearly distinguished, which has the effect of reducing programming mistakes at the time of diversion. Further, in the state where the symbol is displayed, there is an effect that the relationship between the function registered as a macro and the condition for executing the function is easily understood.

According to the peripheral device of the programmable controller according to the next invention, the registered output device of the macro circuit is designated as a device to be monitored, the device state is read from the PC, and the display of conduction or non-conduction of the macro circuit is being monitored. Is displayed, there is an effect that the state of the macro circuit can be easily understood.

According to the peripheral device of the programmable controller according to the next invention, the contact macro command and the coil macro command are registered, respectively selected, and can be used in combination, so that there is an effect that the structure of the circuit data which can be used in combination is increased. .

According to the peripheral device of the programmable controller according to the next invention, the registered block macro instruction is used in combination with the contact portion and the coil portion, and the device used for the coil of the block macro instruction described in the contact portion is used. In order to create a program by adding it as a contact point before the block macro instruction described in the coil part, and divert the program, there is no need to separately describe the relationship between the macro instruction of the contact part block and the block macro instruction of the coil part. is there.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a peripheral device of a programmable controller according to the present invention;

FIGS. 2A to 2F are ladder circuit diagrams showing a state of a sequence program when a user corrects the state and a state when a macro program is developed.

FIG. 3 is a flowchart showing a process when a sequence program is changed.

FIG. 4 is a flowchart showing a first half of a macro program expansion process.

FIG. 5 is a flowchart showing a latter half of macro program expansion processing.

FIG. 6 is a block diagram showing a second embodiment of the peripheral device of the programmable controller according to the present invention;

FIG. 7 is a perspective view showing a second embodiment of the peripheral device of the programmable controller according to the present invention.

FIG. 8 is an explanatory diagram showing a screen display on a peripheral device of the programmable controller.

FIG. 9 is a list diagram showing an example of a sequence program registered as an instruction.

FIG. 10 is a list diagram showing an example of a sequence program registered as an instruction.

FIG. 11 is a list diagram showing an example of a sequence program using registered instructions.

FIG. 12 is a list diagram showing an example of a sequence program using registered instructions.

FIG. 13 is an explanatory diagram showing a configuration of a used device table.

FIG. 14 is a flowchart of an instruction registration process.

FIG. 15 is a flowchart of a process of expanding a registered instruction.

FIG. 16 is a flowchart of a conversion process to a registered instruction.

FIG. 17 is a block diagram showing Embodiment 3 of a peripheral device of a programmable controller according to the present invention.

FIG. 18 is a ladder circuit diagram illustrating an example of a circuit for macro registration.

FIG. 19 is a ladder circuit diagram illustrating a state of a circuit when a device in a circuit registered as a macro is replaced with a virtual device and registered as a macro A; It is.

FIG. 20 is an explanatory diagram showing a device registration table created at the time of macro registration.

FIG. 21 is an explanatory diagram showing a Debye diversion table created at the time of macro diversion.

FIG. 22 is a ladder circuit diagram in which a circuit to which a contact is added as a condition for executing a macro is symbolically displayed.

FIG. 23 is a sequence circuit diagram of a transition state developed on a memory of a peripheral device in a process of changing a display state.

FIG. 24 is a sequence diagram showing a macro symbol display portion as a sequence circuit.

FIG. 25 is a flowchart of a process of macro-registering a circuit.

FIG. 26 is a flowchart of a sequence program adjustment process.

FIG. 27 is a block diagram showing Embodiment 4 of a peripheral device of a programmable controller according to the present invention.

FIG. 28 is a flowchart of a process of determining an original macro portion that does not include a contact point in a sequence circuit display.

FIG. 29 is a block diagram showing Embodiment 5 of a peripheral device of a programmable controller according to the present invention.

FIG. 30 is a ladder circuit diagram showing an example of a sequence program in which a macro circuit is developed.

FIG. 31 is an explanatory diagram showing an example of a macro circuit registered in an internal memory of a PC programming device.

FIG. 32 is an explanatory diagram showing a screen display example in which a sequence program circuit is displayed on a PC programming device.

FIG. 33 is a flowchart of a process of monitoring the operating state of the PC in the PC programming device.

FIG. 34 is a block diagram showing a sixth embodiment of the peripheral device of the programmable controller according to the present invention.

FIG. 35 is a ladder circuit diagram illustrating an example of a ladder circuit.

FIG. 36 is a ladder circuit diagram showing an example of specifying a program range to be registered as a contact macro instruction.

FIG. 37 is a ladder circuit diagram showing an example of specifying a program range registered as a coil macro instruction.

FIG. 38 is an explanatory diagram showing a screen display example for setting the name of a macro instruction to be registered.

FIG. 39 is a circuit diagram showing a circuit example created using a contact macro instruction and a coil macro instruction.

FIG. 40 is a flowchart of a process for registering a contact and coil macro instruction.

FIG. 41 is a flowchart of a process of creating circuit data to be registered as a contact macro instruction.

FIGS. 42A to 42C are circuit diagrams illustrating circuit examples during creation of circuit data to be registered as contact macro instructions.

FIG. 43 is a flowchart of a process of creating circuit data to be registered as a coil macro instruction.

FIGS. 44 (a) to (d) are circuit diagrams showing circuit examples during creation of circuit data to be registered as coil macro instructions.

FIG. 45 is a flowchart of a process of creating a ladder circuit program using a contact macro instruction and a coil macro instruction.

FIG. 46 is a flowchart of a process of developing a ladder circuit program using a contact macro instruction and a coil macro instruction.

FIGS. 47A and 47B are circuit diagrams showing an example of a circuit in the process of macro-expanding a circuit and an example of a circuit to be created.

FIG. 48 is a block diagram showing a seventh embodiment of the peripheral device of the programmable controller according to the present invention.

FIG. 49 is a circuit diagram showing an example of a circuit registered as a block macro instruction.

FIG. 50 is a circuit diagram showing an example of a circuit registered as a block macro instruction.

FIG. 51 is a circuit diagram showing an example of a circuit created by using a block macro instruction for a contact portion and a coil portion.

FIG. 52 is a flowchart of a process of creating circuit data using a block macro instruction and performing macro expansion.

FIG. 53 is an explanatory diagram showing an example of used coil data in which a device of a coil command used in circuit data of a macro command described in a contact portion is stored;

FIGS. 54A and 54B are circuit diagrams showing circuit examples created by macro-expanding circuit data.

FIG. 55 is a functional block diagram showing a conventional example in which a macro program is developed into a sequence program.

FIG. 56 is a flowchart showing a conventional example of macro program expansion.

FIG. 57 is a schematic configuration diagram showing an example of a machine controlled by a sequence program.

FIG. 58 is a list diagram showing an example of a conventional sequence program when a macro is used.

FIGS. 59A and 59B are explanatory diagrams showing a conventional programming procedure.

FIG. 60 is an explanatory diagram showing an example of a display method of a sequence program when a macro is used.

FIG. 61 is an explanatory diagram showing an example of a sequence program when a macro is diverted after writing a contact first.

FIGS. 62A to 62D are explanatory diagrams showing transition states of a sequence program when an attempt is made to add a contact point before a macro.

FIGS. 63 (a) and (b) are diagrams showing a configuration of a conventional PC and a PC programming device, and a screen display example displaying a sequence program circuit in the PC programming device.

FIG. 64 is a flowchart of a process of monitoring the operating state of a PC in a conventional PC programming device.

FIG. 65 is a diagram illustrating an example of a program of a ladder circuit.

FIG. 66 is a block diagram showing an example of a device controlled by a program of a ladder circuit.

FIG. 67 is a diagram showing an example of registration of a conventional macro instruction.

FIG. 68 is a diagram showing an example of conventional diversion of macro instructions.

[Explanation of symbols]

1 macro program registration means, 2 device registration means, 3 correction registration means, 4 macro expansion means, 5 macro memory, 6 program memory, 10 auxiliary storage device, 11 display, 12 keyboard, 13 instruction registration processing section, 14 Instruction expansion processing unit, 15 instruction display processing unit, 16 device number position counter, 17 read line counter, 18 instruction storage memory, 19 sequence program storage memory, 20 used device storage memory,
21 search position counter, 30 macro registration means, 31
Device registration table storage memory, 32 macro diversion processing means, 33 symbol display processing means, 34 sequence program adjustment processing means, 35 sequence circuit display processing means, 36 display, 37 macro range display processing means, 40 PC programming equipment, 41 Power supply unit, 42 CPU unit, 43 various units,
44 cable, 51 programming processing unit, 52
Internal memory, 53 display unit, 54 output device acquisition unit, 55 output device state acquisition unit, 56 macro state display processing unit, 60 processing unit, 61 memory, 62 keyboard, 63 key input control unit, 64 display, 65
Screen display control unit, 66 auxiliary storage device, 67 auxiliary storage device control unit, 71 programming processing unit, 72 contact macro instruction registration unit, 73 coil macro instruction registration unit,
74 macro diversion part, 75 block macro registration part, 7
6 Macro diversion part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsuyoshi Nishimaki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Inside Mitsui Electric Co., Ltd. (72) Kyoko Tanaka 2-3-2 Marunouchi 3-chome, Chiyoda-ku, Tokyo (72) Inventor Yusuke Itaba 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Sanishi Electric Co., Ltd.

Claims (8)

[Claims] 1. A macro program registration unit for registering a group of sequence programs as a macro program, a device registration unit for registering a device for expanding the macro program registered by the macro program registration unit into a sequence program, When the macro expansion unit is modified after being developed into the sequence program, the modification registration means for registering the history in the modification registration table, and when the macro program is modified, the contents thereof are already read using the modification registration table of the sequence program. A peripheral device for a programmable controller, comprising: macro expansion means for expanding a portion other than a portion corrected by the sequence program into a sequence program. 2. An instruction registering means for designating a group of sequence programs and registering them as one instruction, and an instruction expansion processing means for creating a sequence program using the instructions registered by the instruction registering means. A peripheral device for a programmable controller, comprising: 3. A screen display of a sequence program created by the instruction expansion processing means, comprising instruction display processing means for switching between display with a registered instruction and display with an original series of sequence programs. 3. The peripheral device for a programmable controller according to claim 2, wherein: 4. A macro diversion processing means for creating a circuit connecting a macro for executing a macro program and a symbol expression macro, and a condition and a symbol expression for executing the macro generated by the macro diversion processing means. And a sequence program adjusting means for adjusting a sequence program so that the circuits are correctly connected when a circuit connected to the macro is displayed as a sequence circuit. 5. When a circuit connecting a contact and a macro program is displayed as a sequence circuit, an original macro instruction portion not including a contact is extracted, and a process of displaying the original macro instruction portion not including a contact is performed. A peripheral device for a programmable controller, comprising macro range display processing means. 6. An output device acquisition unit for acquiring an output device from devices registered in a macro circuit, and an output device state acquisition unit for acquiring a state of the output device acquired by the output device acquisition unit from a programmable controller. And a macro state display processing means for performing a process of displaying a conductive / non-conductive state of the macro circuit from a state of the output device obtained by the output device state obtaining means. apparatus. 7. In programming a ladder circuit,
Contact macro registration means for registering a circuit consisting of a plurality of contacts as a contact macro instruction; coil coil registration means for registering a circuit consisting of a plurality of contacts and a plurality of coils or a coil as a coil macro instruction; Macro diversion means for diverting the contact macro instruction registered by the means to the contact part and combining the coil macro instruction registered by the coil macro registration means with the coil part. apparatus. 8. In the programming of the ladder circuit,
A block macro instruction registering means for registering one circuit block as a block macro instruction; and a block macro instruction registered by the block macro instruction registering means being combined with a contact portion and a coil portion, and diverted to the block macro instruction described in the contact portion. And a macro diversion means for adding a device used for the coil as a contact before a block macro instruction described in the coil part and diverting the macro instruction. A peripheral device for a programmable controller, comprising: