JP3492146B2 - Programming device for programmable controller - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to POL, which is a problem-oriented language used for monitoring and controlling general industrial equipment.
The present invention relates to a programmable controller programming device that composes a control program in a language.

[0002]

2. Description of the Related Art Normally, a POL language program (hereinafter referred to as P
An OL program) is created and edited by a programming device such as a personal computer. However, when the operator creates the program, the POL program is arranged on the display screen of the CRΤ by arranging the ΡOL instruction in the image of drawing. Can be created. The drawing on the display screen is called a logic diagram).

In this case, after arranging a plurality of POL commands on the display screen, the output terminals of the POL commands arranged on the screen are connected to the input terminals of other POL commands, and the execution number is assigned to each POL command. Need to be set.

The POL program created in this way is generated into an object code in a form executable by a programmable controller (control device). The programmable controller sequentially executes the ΡOL instruction arranged in the object code. Therefore,
When the object code is generated, it is necessary to rearrange each ΡOL instruction in the order of execution in advance. The execution number is necessary to determine the execution order of this instruction.

The above programming device is generally called a maintenance tool. This maintenance tool has a structure as shown in FIGS. 9 and 10.

That is, CRI 90 is for displaying the program created by the POL command. Mouse 9
Reference numeral 2 is an input device for selecting the POL symbol body and buttons. The keyboard 91 is an auxiliary input device for inputting characters such as values of execution numbers. The input means 102 is the mouse 9
2. It is a means for classifying the operator's input through the keyboard 91 or the like. The screen processing means 103 is means for creating data for displaying windows, messages, etc. on the screen. The display means 101 is means for receiving data for screen display and displaying it on the CRT 90. The ΡOL program storage unit 100 is a portion for storing the POL program, for example, a storage area such as a magnetic disk device or a memory. The object code generation means 104 is means for generating an object code from a POL program. The object code storage unit 105 is a unit for storing the object code generated by the object code generation unit 104, and is the above-mentioned OL program storage unit 10.
It is a storage area different from 0. Execution number setting means 106
Is a means for setting the execution number input by the operator in the POL command.

The operation of the conventional maintenance tool will be described below with reference to FIGS. FIG. 11 is a diagram showing a control flow when a conventional maintenance tool sets an execution number for a POL command, and FIG. 12 is a display screen (logic diagram edit screen) when an execution number is set by the conventional maintenance tool. It is a figure which shows an example.

In the case of this maintenance tool, as shown in FIG. 12, a logic diagram edit screen 120 is displayed on the display means 101, and the operator can input POL commands 121, 122 and the like on the logic diagram edit screen 120. By arranging and connecting each, the ΡOL program is created.

Here, when the execution number is set for the newly arranged POL command, for example, the POL command 122, the operator uses the mouse 92 to edit the logic diagram edit screen 12
The cursor 123 above 0 is moved and the ΡOL instruction 122 is clicked to select it.

Then, as shown in FIG. 11, the input means 1
02 passes the clicked position to the screen processing means 103 (11a), and the screen processing means 103 selects the selected OL.
In response to the instruction 122, a small window screen (input window 125 in FIG. 12) for inputting the execution number is displayed (11b).

Next, when the operator operates the keyboard 91 to key in the execution number set in the ΡOL instruction 122, for example, "12", the input means 102
The input value is passed to the execution number setting means 115 (11
c), the execution number setting means 106 sets the passed execution number to P
Writing to the OL program storage unit 100 (11d) and notifying the end of writing to the screen processing means 114 (11e).
The screen processing means 103 reads the set execution number from the POL program storage unit 100 (11f), and
As shown in, the execution number such as "12" is displayed on the logic diagram edit screen 120 (11g). Above 1
The operations 1a to 11g are repeated to set the execution number for all the OL instructions.

[0012]

However, in the above-mentioned conventional maintenance tool, that is, in the programming device of the programmable controller, in order to set the execution number of the ΡOL instruction, the execution number of each ΡOL instruction is assigned to the operator. Has to be set by keying in, and there is a problem that it takes a lot of time to create a program.

Also, when changing the execution number that has already been set in the ΡOL instruction, the operator must key in a new execution number and set each subsequent execution number one by one. However, there is a problem that even if only one POL command is inserted, it takes a lot of time to change the program.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a programming device for a programmable controller capable of creating and changing a POL program in a short time.

[0015]

[0016]

[Means for Solving the Problems] To achieve the above object.
Therefore, the programmable controller programming device according to claim 1 displays a POL instruction on a display screen, sets an execution number for the POL instruction, and executes the POL instruction in the order of the execution number. In the programming device, the program storage means for storing the POL command arranged on the display screen, the input means for instructing to start setting the execution number for the POL command, and the input means for instructing the start of the execution number In this case, from the ΡOL instructions stored in the program storage means, ΡOL instruction search means for searching for ΡOL instructions for which execution numbers have not been set based on the positional relationship on the display screen, and the ΡOL instruction search. Execution number setting means for setting execution numbers to POL commands in the order searched by the means It is characterized by comprising a.

The programming device of the programmable controller of claim 2, wherein, by displaying the POL command to the display screen, sets the execution number to the POL instruction, the programmable controller for executing a POL instructions in order of their execution number In the programming device of
A program storage unit that stores the POL command in association with an execution number, an input unit that arranges a new POL command on the display screen, and a POL command that is newly arranged on the display screen by the input unit. When a new POL instruction is arranged by the POL instruction storage means to be stored and the input means, the POL instruction having the maximum execution number is selected from among the POL instructions stored in the program storage means. A POL instruction search means for searching for a new execution number following the execution number of the searched POL instruction; and a new execution number obtained by the POL instruction search means for being stored in the POL instruction storage means. It is characterized by further comprising: an execution number setting means for setting the POL command to be stored and storing it in the program storage means.

A programmable controller programming apparatus according to a third aspect of the present invention displays a POL instruction on a display screen, sets an execution number for the POL instruction, and executes the POL instruction in the order of the execution number. In the programming device of
A program storage unit that stores a POL command arranged on the display screen, an execution number interval storage unit that stores interval information for setting the execution number, and an instruction to start setting an execution number for the POL command. When the start of the execution number is instructed by the input means and the input means, the POL instruction whose execution number is not set is selected from among the POL instructions stored in the program storage means based on the connection relationship between the instructions. ΡOL command searching means for searching, and the Ρ
It is characterized by further comprising an execution number setting means for setting an execution number based on the interval information of the execution number interval storage section in the order of the POL commands searched by the OL command searching means. The programming device for a programmable controller according to claim 4 , displaying a POL command on a display screen,
In a programming device of a programmable controller that sets the execution numbers to the POL commands to execute the POL commands in the order of the execution numbers, a program storage unit storing the POL commands arranged on the display screen; An execution number interval storage unit that stores interval information for setting an execution number, and the POL instruction
Input means for instructing the start of execution number setting, and, when the input means is instructed for start of execution number setting, among the ΡOL instructions stored in the program storage means, the ΡOL instruction for which the execution number is not set is set. To set the execution number based on the interval information in the execution number interval storage unit in the order of the POL instruction searching means for searching based on the arrangement positional relationship on the display screen and the POL instruction searched by the OL instruction searching means. It is characterized by including a number setting means.

A programmable controller programming device according to claim 5 displays a POL instruction on a display screen, sets an execution number for the POL instruction, and executes the POL instruction in the order of the execution number. In the programming device of
A program storage unit that stores the POL command in association with an execution number, an execution number interval storage unit that stores interval information for setting the execution number, and an input that arranges a new POL command on the display screen. Means, a POL instruction storage means for storing a POL instruction newly arranged on the display screen by the input means, and a new POL instruction if arranged by the input means, stored in the program storage means. The POL command with the maximum execution number is searched from among the POL commands
A new execution number following the execution number of the retrieved POL instruction is obtained based on the interval information in the execution number interval storage unit P
And an execution number setting unit for setting the new execution number obtained by the POL command searching unit to a POL command stored in the POL command storing unit and storing it in the program storing unit. It is characterized by having done.

A programmable controller programming apparatus according to claim 6 displays a POL instruction on a display screen and sets an execution number for the POL instruction, thereby executing the POL instructions in the order of the execution numbers. In the programming device of
Input means for designating a desired POL command and a change value of the execution number of this POL command from the display screen;
A program storage unit that stores the L instruction in association with the execution number; and a ΡOL instruction search unit that searches the program storage unit for the ΡOL instruction specified by the input unit.
Execution for updating the execution number of the POL instruction after the POL instruction for which the change is instructed, while setting a new execution number for the POL instruction searched by the ΡOL instruction searching means for the change value of the execution number designated by the input means It is characterized by including a number setting means.

A programmable controller programming device according to claim 7 displays a POL instruction on a display screen, sets an execution number for the POL instruction, and executes the POL instruction in the order of the execution number. In the programming device of
Input means for designating a desired POL command and a change value of the execution number of the POL command from the display screen, a change width storage unit for storing change width information of the execution number, and the PO.
A program storage unit that stores L instructions and execution numbers in association with each other, a ΡOL instruction search unit that searches the program storage unit for the ΡOL instruction designated by the input unit, and an execution number designated by the input unit. A new execution number is set to the POL command searched for by the ΡOL command search means, and the PO whose modification value is instructed is changed.
It is characterized in that it comprises an execution number setting means for changing the execution number of the POL instruction after the L instruction based on the change width information of the change width storage section and the new execution number.

[0022]

In the case of the first, third and fourth aspects of the invention, when the execution number is initially input, the input means instructs the start of the execution number when the placement and connection of the ΡOL instruction are completed. In this case, among the POL instructions stored in the program storage means, the POL instructions whose execution numbers have not been set are connected with each other and arranged on the display screen.
The execution numbers are set in the order of the searched POL commands by searching based on the positional relationship .

That is, P is used as a condition for setting the execution number.
Conditions such as the connection relationship between OL commands and the arrangement position relationship on the display screen are determined in advance, and the POL that satisfies the conditions is determined in advance.
Since the execution numbers are set in order from the instruction, the POL program can be created in a short time, and the usability of the programming device itself and the work efficiency can be improved.

In the case of the inventions of claims 2 and 5 ,
When a new POL instruction is placed on the display screen, the execution number to be set next is obtained from the execution numbers set in other POL instructions that have already been placed, and the execution number is set in the new ΡOL instruction. It

That is, when the execution number is initially input, 1
Since the execution number is automatically set every time one ΡOL instruction is arranged, the input time of the ΡOL program can be shortened, and the usability of the programming device itself and the work efficiency can be improved. it can.

In the case of the inventions of claims 6 and 7 ,
When the ΡOL instruction is designated by the input means in changing the already set execution number, the ΡOL instruction is retrieved from the program storage unit, and a new execution number for the retrieved POL instruction is a fixed value or the operator The value of the set change width is obtained and set, and the execution number of the POL instruction after the POL instruction for which the change is instructed is updated.

That is, the value after the change of the execution number is obtained from the predetermined change rule, and the POL designated by the operator is obtained.
Since the execution number of the instruction is changed, it is possible to shorten the program correction time when the execution number is changed, and it is possible to improve the usability and work efficiency of the programming device itself.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a configuration of a maintenance tool according to a first embodiment of a programmable controller programming apparatus of the present invention, FIG. 2 is a flow chart showing a POL instruction search process of this maintenance tool, and FIG. PO
It is a flow chart showing L command retrieval processing. The hardware configuration is the same as in FIG.

In FIG. 1, 11 is a display means. The display means 11 receives the data for displaying the screen and displays it on the CRT 9
It is a means for displaying 0. ΡOL program storage unit 12
Is a storage area for storing the POL program, for example, a storage area such as a magnetic disk device or a memory. Input means 13
Is a means for classifying the operator's input using the mouse 92, keyboard 91, etc. shown in FIG. The screen processing means 14 is means for creating data for displaying a window screen, a message and the like on the screen. The execution number setting means 16 is means for automatically setting a desired execution number in the POL command. Although not shown, this maintenance tool also has an object code generation means, an object code storage section, etc. as a normal POL program creation means as in the conventional case. The object code generating means is means for generating an object code from the POL program. The object code storage section is a section for storing the object code generated by the object code generation means, and is a storage area different from the ΡOL program storage section 12 on the magnetic disk device or the memory.

The operation of the maintenance tool of the first embodiment will be described below.

[0033] First of all, the first movement of this maintenance tool
An example will be described.

In this first operation example, the operator
When the L program is created, the placement and connection of the ΡOL instruction are completed on the display screen of the CRT 90, and then the mouse 92 is used to instruct the start of execution number setting.

Then, the input means 13 instructs the POL instruction search means 15 to start the search (1a). If the ΡOL instruction is found in the logic diagram, the ΡOL instruction retrieving means 15 (S2
01), the data of one POL command (hereinafter referred to as X command) is read from the ΡOL program storage unit 12 (1b, S2
02).

The following processing (S203 to S207) determines whether the X instruction satisfies the condition for setting the execution number. If the execution number is set in the X instruction, the X instruction is excluded (S203). If the execution number is not set (S203), check whether the X instruction has an input terminal (S20).
4) For each input terminal, check if there is another POL command connected (S205).

Here, another P connected to the input terminal
There is an OL command (hereinafter referred to as Y command) (Y in S205),
If the execution number is not set in the Y command (N in S206), the X command is not the target of the execution number setting, the Y command is the target of the execution number setting, and the Y command is output (S209).

On the other hand, if another POL command whose execution number is not set is connected to the input terminal of the X command (S204 to S20).
6), the X instruction satisfies the condition for setting the execution number, and exits the loop repeatedly (S207). If it does not reach S207, it is considered that the X instruction does not satisfy the condition, and the process returns to the original process of S201. In this way, the condition determination process is repeated for all POL instructions in the logic diagram.

If there is a POL instruction satisfying the conditions (S208), the POL instruction retrieval means 15 outputs the POL instruction (S209). If there is no POL command satisfying the condition (S208), the POL command search means 15 outputs NULL (S210). The output of the POL command retrieval means 15 is passed to the execution number setting means 16 (1c).

In the execution number setting means 16, when a POL command is input from the POL command search means 15, the PO
The execution number of the L instruction is set to "1" or the like, and they are associated with each other and written in the POL program storage unit 12 (1d), and the writing end (setting end) is transmitted to the screen processing means 14 (1
e).

The screen processing means 14 reads the set execution number from the POL program storage section 12 (1f),
Display on CRT 90 (1 g). Then, when the display processing is finished, the screen processing means 14 notifies the POL command searching means 15 of the end of the display processing (1h). Then, the ΡOL instruction search means 15 searches again for a POL instruction that satisfies the condition for setting the execution number (S201 to S209). When the POL instruction retrieval means 15 outputs the ΡOL instruction again, the execution number setting means 16 sets the execution number 2 to the ΡOL instruction.
Thereafter, the processing of 1h to 1g is repeated in the same manner, and the execution number setting means 16 outputs the ΡO output by the ΡOL instruction searching means 15.
Execution numbers are sequentially set for L instructions. When the POL command search means 15 outputs NULL, all the ΡO
Since the execution number has been set in the L instruction, the processing ends at that point. Since the setting result is displayed on the CRI 90, the operator corrects any further changes with the same technique as in the past.

Next, a second operation example (the invention according to claim 1 ) of this maintenance tool will be described.

In the case of this second operation example, the operator P
In creating the OL program, after the placement and connection of the ΡOL instruction are completed, the start of the execution number setting is instructed by the mouse 92.

Then, the input means 13 commands the ΡOL instruction search means 15 to start the search (1a). If the POL instruction is found in the logic diagram (S3
01), the data of one POL command is read from the POL program storage unit 12 (1b, S302), and the read PO is read.
Check whether the execution number is set in the L instruction (S3
03). Here, if the execution number is set in the POL command (Y in S303), this ΡOL command is excluded.

On the other hand, if the execution number is not set (N in S303), the arrangement position (usually XY coordinates) in the logic diagram of this POL command is stored (S304). And
The processes of S301 to S304 are repeated to store the placement positions of all POL instructions whose execution numbers have not been set (S305). If there is no POL command for which the execution number has not been set (N in S306), NULL is output (S308) and the process ends.

On the other hand, if at least one allocation position of the ΡOL instruction for which the execution number is not set is stored (Y in S306), P
The OL command retrieval means 15 outputs the POL command which is the uppermost and the leftmost in the drawing from among them (S30).
7). This output is passed to the execution number setting means 16 (1c).

When the POL command is input from the POL command retrieving unit 15, the execution number setting unit 16 sets the execution number of the POL command to "1", and correlates them with each other.
Writing to the program storage unit 12 (1d) and notifying the end of writing to the screen processing means 14 (1e). The screen processing means 14 reads the set execution number from the POL program storage unit 12 (1f) and displays it on the CRI 90 (1
g). The screen processing means 14 informs the ΡOL command searching means 15 of the end of the display processing (1h). Then, the POL command retrieval means 15 sets the condition P for setting the execution number again.
Search for an OL instruction (S301 to S307). When the POL command retrieving means 15 outputs the POL command again, the execution number setting means 16 increments the previous execution number "1" by "1" and sets "2" as the execution number in the input ΡOL command. After that, the processing of 1h to 1g is repeated in the same manner, and the execution number setting means 16 outputs the POL output from the POL instruction searching means 15.
Execution numbers are sequentially set for the commands. And P
Since the execution numbers have been set to all the POL commands when the OL command retrieval means 15 outputs NULL, the process is terminated at that time. Since the setting result is displayed on the CRT 90, if the operator needs to make further changes, he / she corrects the same by the conventional technique.

As described above, according to the maintenance tool of the first embodiment, if all the POL commands are arranged on the display screen and then the execution number setting start is instructed, the POL command retrieval means 15 stores the POL program. Part 12 to POL
After the instruction is read and the POL instruction (X instruction) whose execution number is not set is searched, is another POL instruction (Y instruction) connected to the input terminal of the POL instruction (X instruction)? Whether or not it is checked and the execution number is sequentially set in the POL command based on the connection relationship, key operations performed by the operator can be reduced, and the POL program creation time can be shortened.

If all the POL commands are arranged on the display screen and then the start of the execution number setting is instructed, the POL command retrieving means 15 reads the POL command from the POL program storage unit 12, and the execution number is set. P is not set
After the OL command (X command) is searched, the execution number is set in order from the POL command at the top and the leftmost side in the drawing, so that the key operation performed by the operator can be reduced. , POL program creation time can be shortened.

[0050] The following describes the maintenance tool of the second embodiment according to the second aspect of the present invention. FIG. 4 is a diagram showing the configuration of the maintenance tool of the second embodiment.

As shown in FIG. 4, the maintenance tool of the second embodiment includes a display means 41 and a POL program storage section 4.
2, input means 43, screen processing means 44, POL instruction search means 45, execution number setting means 46, ΡOL instruction storage unit 4
It is composed of 7 etc. ΡOL command storage unit 47
This is a buffer for temporarily writing the POL command itself. With the maintenance tool of this second embodiment, the operator
When creating a program, PO on the logic diagram edit screen
When arranging the L instruction, the operator first specifies the POL instruction arrangement position by clicking the position where the POL instruction is arranged with the mouse 92 in the logic diagram edit screen.

Then, the input means 43 passes the information of the designated arrangement position to the screen processing means 44 (4a), and the screen processing means 44 writes the shape data of the POL command into the POL program storage section 42 (4b). P the POL command itself
Write to the OL command storage unit 47 (4c) and display the ΡOL command at a specified position in the logic diagram edit screen (4
d). After the display, the screen processing means 44 informs the POL command searching means 45 of the end of the display (4e). The POL command retrieval means 45 reads out the data of the POL command from the POL program storage unit 42 (4f), and has the maximum value among the execution numbers set in the POL command existing in the logic diagram edit screen at that time. Is checked and the value (maximum value) is passed to the execution number setting means 46 (4g). Execution number setting means 4
6 is an execution number for the ΡOL instruction (4h) stored in the ΡOL instruction storage unit 47 by adding +1 to the value output by the POL instruction search means 45, and is written (41) and written in the POL program storage unit 42. The end is notified to the screen processing means 44 (4j). The screen processing means 44 reads the set execution number from the POL program storage unit 42 (4k), displays it on the CRT 90 (4l), and clears the POL command storage unit 47 (4m).

Hereinafter, each time the operator places a POL instruction, the processing of 4a to 4m is performed, so that when the placement of the ΡOL instruction is completed, execution numbers are set to all ΡOL instructions. . Since the set execution number is displayed on the CRT 90, if the operator needs to change the correction number, the operator corrects it by the same technique as the conventional technique. As described above, according to the maintenance tool of the second embodiment, when a new POL command arrangement position is designated, the POL command is temporarily stored in the POL command storage unit 47, and the POL command search unit 45 causes the POL program to be stored. The execution value of the maximum value is searched from the POL instructions stored in the storage unit 42, a new execution number following the searched execution number is obtained, and the obtained new execution number is the POL instruction. Since the POL command stored in the storage unit 47 is set and stored in the program storage unit 42, the operator can simply place the POL command on the display screen and the execution number is automatically set. As a result, it becomes unnecessary to input the execution number.

[0054] The following describes maintenance tool of the third embodiment according to the invention of claim 3,4, wherein. Figure 3 is the third
It is a figure which shows the structure of the maintenance tool of embodiment.

As shown in FIG. 5, the maintenance tool of the third embodiment includes a display means 51 and a POL program storage section 5.
2, input means 53, screen processing means 54, POL command searching means 55, execution number setting means 56, execution number interval storage 57, and the like. Execution number interval storage unit 57
Stores the interval information of the execution numbers keyed in, that is, values such as "1", "2", "3".

In the first embodiment described above, the execution number setting means 16 sets the execution number by 1 each time the POL instruction is output from the POL instruction searching means 15.
In the third embodiment, the value for further increasing the execution number, that is, the execution number interval is a value predetermined by the operator.

First, a first operation example (an invention according to claim 3 ) of the maintenance tool of the third embodiment will be described.

In the case of this first operation example, when the operator inputs the execution number interval by key input, the input means 53
Stores the value in the execution number interval storage unit 57 (5
a). Hereinafter, the control flow for setting the execution number is 5b to 5d.
Up to this, the operation is the same as the first operation example of the first embodiment.

Next, the execution number setting means 56 reads the value stored in the execution number interval storage unit 57 (5e).
The value added to the previously set execution number is set as the execution number of the POL command output by the POL command search means 55 and written in the POL program storage unit 52 (5f). Below, 5g
Up to 5j is the same as the first operation example of the first embodiment.
The above 5j, 5c, 5d, 5e, 5f, 5g, 5h,
The processing of 5i is repeated, and the execution number setting means 56
Execution numbers are sequentially set for the ΡOL instruction output by the L instruction retrieval means 55.

When the POL command retrieval means 55 outputs NULL, it means that the execution numbers have been set for all the POL commands, so that the process ends. Since the setting result is displayed on the CRI 90, if the operator needs to make further changes, he / she corrects them by the same technique as the conventional technique.

Next, a second operation example (the invention according to claim 4 ) of the maintenance tool of the third embodiment will be described.

In the case of this second operation example, when the operator inputs the execution number interval by key input, the input means 53
Stores the value in the execution number interval storage unit 57 (5
a). Hereinafter, the control flow for setting the execution number is 5b to 5d.
Up to this point, the operation is the same as the second operation example of the first embodiment.

Subsequently, the execution number setting means 56 reads out the value stored in the execution number interval storage unit 57 (5
e), the value added to the previously set execution number is used as the execution number of the ΡOL instruction output by the ΡOL instruction search means 55, and P
Write to the OL program storage unit 52 (5f). Less than,
5g to 5j are the same as the second operation example of the first embodiment. 5j, 5c, 5d, 5e, 5f, 5g,
The execution number setting means 56 is repeated by repeating the processing of 5h and 5i.
Sequentially sets execution numbers for the POL commands output by the POL command search means 55. Since the execution numbers have been set in all the POL instructions at the time when the POL instruction retrieval means 55 outputs NULL, the process ends. Since the setting result is displayed on the CRI 90, the operator corrects any further changes with the same technique as in the past.

As described above, according to the maintenance tool of the third embodiment, in addition to the effect of the first embodiment, the execution numbers can be set at intervals desired by the operator. If you insert a POL
Even if an instruction is added, it is not necessary to change the execution numbers of other POL instructions, and the POL program can be modified with fewer operations.

[0065] The following describes the maintenance tool according to the fourth embodiment of the invention of claim 5, wherein. FIG. 6 is a diagram showing the configuration of the maintenance tool of the fourth embodiment.

As shown in FIG. 6, the maintenance tool of the fourth embodiment includes a display means 61 and a POL program storage section 6.
2, input means 63, screen processing means 64, POL instruction search means 65, execution number setting means 66, and OL instruction storage unit 6
7, an execution number interval storage unit 68 and the like.
The execution number interval storage section 68 stores interval information of keyed execution numbers, that is, values such as "1", "2", "3".

In the second embodiment described above, the execution number setting means 46 is provided with the ΡOL instruction searching means 45.
Every time the maximum value of the execution number set in the OL instruction is output, the value obtained by adding 1 to the execution number is set as the execution number of the POL instruction stored in the POL instruction storage unit setting 47. In the fourth embodiment, the value for increasing the execution number (hereinafter referred to as the execution number interval) is a value predetermined by the operator.

That is, in the case of the maintenance tool of the fourth embodiment, when the operator inputs the execution number interval by key input, the input means 63 stores the value in the execution number interval storage unit 68 (6a). Hereinafter, the control flow for setting the execution number is the same as that of the second embodiment from 6b to 6h.

Subsequently, the execution number setting means 66 reads the value stored in the execution number interval storage section 68 (6
i), the value added to the maximum value of the execution number output by the POL instruction search means 65 is set as the execution number of the ΡOL instruction stored in the POL instruction storage unit 67, and is written in the ΡOL program storage unit 62 (6j, 6k). ). Hereinafter, 6l to 6o are the same as in the case of the second embodiment.

Hereinafter, each time the operator places a POL instruction, the processing of 6b to 6o is performed, so that when the placement of the POL instruction is completed, the execution numbers are set to all the POL instructions. . Since the set execution number is displayed on the CRT 90, the operator corrects it by the same technique as the conventional one if there is a need for further change.

As described above , according to the maintenance tool of the fourth embodiment (the invention according to claim 5 ), in addition to the effect of the second embodiment, the execution number can be set at intervals desired by the operator. For example, POL is added to the created logic diagram.
When inserting a command, even if a POL command is added, another PO
The execution number of the L instruction does not have to be changed, and the POL program can be modified with fewer operations.

[0072] The following describes the maintenance tool of the fifth embodiment according to the invention of claim 6 wherein. FIG. 7 is a diagram showing the configuration of the maintenance tool of the fifth embodiment.

As shown in FIG. 7, the maintenance tool of the fifth embodiment includes a display means 71 and a POL program storage section 7.
2, input means 73, screen processing means 74, POL command search means 75, execution number setting means 76, increase / decrease storage unit 77, and the like. The increase / decrease storage unit 77 has a mouse 92
The increase / decrease information as to whether the left click or the right click is stored, and one of them is output to the execution number setting means 76 according to the mouse click information from the input means 73.

When an operator creates a POL program, an execution number may be erroneously set or the program may be changed. In such a case, the operator needs to temporarily change the POL command placed on the display screen and the execution number set in the POL command.

In this case, the operator first selects the POL command to be changed on the display screen with the mouse 92 of the maintenance tool, and clicks the left button of the two buttons provided on the left and right of the mouse 92 (left click.

Then, the input means 73 notifies the increase / decrease storage unit 77 that the mouse 92 has been left-clicked (7
Along with h), P clicked on the execution number search means 75
Notify the OL command (7a). Execution number search means 75
Is the P clicked from the POL program storage 72.
The data of the OL command is read (7b), the set execution number is checked and passed to the execution number setting means 76 (7
c).

Then, the execution number setting means 76 reads from the increase / decrease storage unit 77 the information indicating that the number is to be incremented by 1 (7
i). Then, the execution number setting means 76 includes the increase / decrease storage unit 7.
Execution number search means 7 based on the information read from 7.
5 adds +1 to the execution number of the ΡOL instruction, and the value is used as the changed execution number in the ΡOL program storage unit 7
2 is written (7d), and the end of writing is processed by the screen processing means 7
Tell 4 (7e). The screen processing means 74 reads the set execution number from the ΡOL program storage unit 72 (7f) and displays it on the CRI 90 (7g). It should be noted that the operator selects the change target ΡOL instruction and selects the mouse 92
If the right button of is clicked, the increase / decrease storage unit 77 is notified of the right click at 7h, and the execution number setting means 76 reads out the information indicating that the increase / decrease storage unit 77 is -1 (7i) and executes. The value obtained by subtracting -1 from the execution number of the POL instruction output by the number search means 75 (the value obtained by subtracting 1) is the changed value.

As described above, according to the maintenance tool of the fifth embodiment, the operator decides the width of changing the execution number in advance before changing the execution number, and when changing the execution number, the operator changes it. Select POL command and mouse 9
If one of the left and right buttons of 2 is clicked, the execution number after the change of the POL instruction is obtained from the determined change width, and the execution number is set in the POL instruction. The execution number can be changed with less operations.

[0079] The following describes the maintenance tool of the sixth embodiment according to the invention of claim 7, wherein. FIG. 8 is a diagram showing the configuration of the maintenance tool of the sixth embodiment.

As shown in FIG. 8, the maintenance tool of the sixth embodiment includes a display means 81 and a POL program storage section 8.
2, input means 83, screen processing means 84, POL command retrieval means 85, execution number setting means 86, increase / decrease storage section 87, change range storage section 88 and the like. Increase / decrease storage unit 8
The increase / decrease information of whether the mouse 92 is left-clicked or right-clicked is stored in 7, and either one is output to the execution number setting means 86 according to the mouse click information from the input means 83. The change width storage unit 88 has a mouse 9
The change width information of the execution number when the button 2 is clicked once, that is, the values such as "1", "2", and "3" are stored, and the value stored by the operation of changing the execution number is It is output to the execution number setting means 86.

In the fifth embodiment described above, the rate at which the execution number increases or decreases is fixed at +1 or -1.
In the sixth embodiment, a value for changing the execution number by one click operation of the mouse 92, that is, a change width is a value predetermined by the operator.

That is, in the maintenance tool of the sixth embodiment, when the operator inputs the change width by key input in the edit and setting mode, the input means 83 stores the value in the change width storing section 88. Do (8
j). Hereinafter, the control flow for setting the execution number is 8h and 8a.
Up to 8c are the same as in the fifth embodiment.

Next, the execution number setting means 86 reads out the value stored in the change range storage section 88 (8k), reads out the left click or the right click from the increase / decrease storage section 87 (8i), and retrieves the execution number. The execution number of the POL command output by the means 85 is increased / decreased by the value read in 8k as a changed value and written in the ΡOL program storage unit 82 (8
d). Hereinafter, 8e to 8g are the same as in the fifth embodiment.

As described above, according to the maintenance tool of the sixth embodiment, in addition to the effects of the fifth embodiment, the operator can set the change range of the execution number that increases or decreases with one operation of the mouse 92. If the operator operates the mouse 92 once, the execution number can be set within a desired width, and the logic diagram can be corrected with less operation.

In the above-described first to sixth embodiments, the maintenance tool has been described as having each function (each configuration) from the beginning, but the maintenance tool is a general-purpose CD-ROM.
A computer equipped with a drive or the like may be provided, and a program that implements each of the above functions may be stored in a recording medium such as a CD-ROM and provided to the computer. Further, the above program may be provided to the computer via a communication network such as a telephone line or a LAN.

As a result, the usability of the maintenance tool can be improved and the work efficiency can be improved.

[0087]

As described above, claims 1 to 7
According to the described invention, if all the POL commands are arranged on the display screen and then the execution number setting start is instructed, each PO
Since L run number to be set in the instruction is automatically set, the operator is able to improve the operability in performing the pro <br/> ming at the programmable controller.

As a result, the POL program can be created and changed in a short time.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a maintenance tool of a first embodiment corresponding to the invention according to claim 1 ;

FIG. 2 is a flowchart showing a first operation example of the maintenance tool according to the first embodiment.

FIG. 3 is a flowchart showing a second operation example of the maintenance tool of the first embodiment.

FIG. 4 is a diagram showing a configuration of a maintenance tool of a second embodiment corresponding to the invention according to claim 2 ;

FIG. 5 is a diagram showing a configuration of a maintenance tool of a third embodiment corresponding to the inventions of claims 3 and 4 ;

FIG. 6 is a diagram showing a configuration of a maintenance tool of a fourth embodiment corresponding to the invention according to claim 5 ;

FIG. 7 is a diagram showing a configuration of a maintenance tool of a fifth embodiment corresponding to the invention according to claim 6 ;

FIG. 8 is a diagram showing a configuration of a maintenance tool of a sixth embodiment corresponding to the invention of claim 7 ;

FIG. 9 is a diagram showing a schematic configuration of a general maintenance tool.

FIG. 10 is a diagram showing an internal configuration of a general maintenance tool.

FIG. 11 is a diagram showing a main configuration of a conventional maintenance tool.

FIG. 12 is a diagram showing a screen of a conventional maintenance tool.

[Explanation of Codes] 11 ... Display means, 12 ... ΡOL program storage section, 13
... input means, 14 ... screen processing means, 15 ... POL command search means, 16 ... execution number setting means, 41 ... display means, 4
2 ... ΡOL program storage unit, 43 ... Input means, 44 ...
Screen processing means, 45 ... POL command retrieval means, 46 ... Execution number setting means, 47 ... POL command storage section, 51 ... Display means, 52 ... POL program storage section, 53 ... Input means,
54 ... Screen processing means, 55 ... POL command searching means, 56
... Execution number setting means, 57 ... Execution number interval storage unit , 61
... display means, 62 ... ΡOL program storage section, 63 ... input means, 64 ... screen processing means, 65 ... POL command search means, 66 ... execution number setting means, 67 ... ΡOL command storage section, 68 ... execution number interval storage section , 71 ... Display means, 72
... ΡOL program storage section, 73 ... Input means, 74 ... Screen processing section, 75 ... Execution number search section, 76 ... Execution number setting section, 77 ... Increase / decrease storage section, 81 ... Display section, 82 ...
POL program storage, 83 ... Input means, 84 ... Screen processing means, 85 ... Execution number search means, 86 ... Execution number setting means, 87 ... Increase / decrease storage section, 88 ... Change range storage section, 90
... CRI, 91 ... Keyboard, 92 ... Mouse.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G05B 19/02-19/05 G06F 9/06

Claims (7)

(57) [Claims] 1. A POL command is displayed on a display screen to display the PO.
In a programming device of a programmable controller that executes POL instructions in the order of execution numbers by setting execution numbers for L instructions, a program storage unit that stores POL instructions arranged on the display screen, and the POL. Input means for instructing the start of the execution number setting for the instruction, and when the start of the execution number is instructed by the input means,
From the ΡOL instructions stored in the program storage means, ΡOL instruction search means for searching for ΡOL instructions for which execution numbers have not been set based on the positional relationship on the display screen, and ΡOL instruction search means. A programming device for a programmable controller, comprising: an execution number setting means for setting execution numbers to POL commands in the order in which they are executed. 2. A POL command is displayed on a display screen, and the PO is displayed.
In a programming device of a programmable controller that executes POL instructions in the order of execution numbers by setting execution numbers for L instructions, a program storage unit that stores the POL instructions in association with the execution numbers, and the display screen. Input means for arranging a new POL command on top, POL command storage means for storing the POL command newly arranged on the display screen by the input means, and new POL command by the input means In this case, among the POL commands stored in the program storage means, the POL having the maximum execution number is set.
POL instruction searching means for searching for an instruction and obtaining a new execution number following the execution number of the searched POL instruction; and storing the new execution number obtained by the POL instruction searching means in the POL instruction storage means. Is being done
A programming device for a programmable controller, comprising: an execution number setting means for setting the L instruction and storing it in the program storage means. 3. A POL command is displayed on a display screen, and the PO is displayed.
In a programming device of a programmable controller that executes POL instructions in the order of execution numbers by setting execution numbers for L instructions, program storage means for storing POL instructions arranged on the display screen; An execution number interval storage unit storing interval information for setting numbers, input means for instructing to start setting an execution number for the POL command, and a case where the execution number is instructed by the input means,
Among the POL instructions stored in the program storing means, a POL instruction for which an execution number is not set is searched based on a connection relationship between the instructions, and a POL instruction searched by the OL instruction searching means. A programming device for a programmable controller, comprising: an execution number setting means for setting an execution number based on interval information in the execution number interval storage section in the order of instructions. 4. A POL command is displayed on a display screen, and the PO is displayed.
In a programming device of a programmable controller that executes POL instructions in the order of execution numbers by setting execution numbers for L instructions, program storage means for storing POL instructions arranged on the display screen; An execution number interval storage unit that stores interval information for setting numbers and an instruction to start setting an execution number for the POL command
When the start of setting the execution number is instructed by the input means and the input means, among the ΡOL instructions stored in the program storage means, the ΡOL instruction whose execution number is not set is arranged on the display screen. And an execution number setting means for setting an execution number based on the interval information of the execution number interval storage unit in the order of the POL commands searched by the OL instruction search means. A programmable controller programming device characterized by: 5. A POL command is displayed on a display screen, and the PO is displayed.
In a programming device of a programmable controller that executes POL instructions in the order of execution numbers by setting execution numbers for L instructions, a program storage unit that stores the POL instructions in association with the execution numbers, and the execution number. An execution number interval storage unit that stores interval information for setting a POL command, an input unit that arranges a new POL command on the display screen, and a POL command newly arranged on the display screen by the input unit. When a new POL command is arranged by the POL command storage unit to be stored and the input unit, the POL having the maximum execution number is set among the POL commands stored in the program storage unit.
A POL instruction searching unit that searches for an instruction and that obtains a new execution number following the execution number of the retrieved POL instruction based on the interval information in the execution number interval storage unit; PO number stored in the POL command storage means
A programming device for a programmable controller, comprising: an execution number setting means for setting the L instruction and storing it in the program storage means. 6. A POL command is displayed on a display screen, and the PO is displayed.
In a programming device of a programmable controller that executes POL commands in the order of execution numbers by setting execution numbers for L commands, a desired POL command from the display screen and a change value of the execution number of this POL command are displayed. Input means for designating a POL instruction, a program storage section for storing the POL instruction in association with an execution number, a ΡOL instruction retrieval means for retrieving the ΡOL instruction designated by the input means from the program storage section, and the input means. The execution number setting means for setting the new execution number in the POL instruction searched by the ΡOL instruction searching means for the change value of the execution number specified by A programming device for a programmable controller, comprising: 7. A POL command is displayed on a display screen to display the PO.
In a programming device of a programmable controller that executes POL commands in the order of execution numbers by setting execution numbers for L commands, a desired POL command from the display screen and a change value of the execution number of this POL command are displayed. An input means for specifying the execution number, a change width storage section for storing the change width information of the execution number, a program storage section for storing the POL instruction and the execution number in association with each other, and a ΡOL instruction specified by the input means. Of the execution number designated by the input means, and sets a new execution number to the POL instruction searched by the OL instruction search means, and a change instruction is issued. The execution numbers of the POL commands after the POL command are changed width information in the changed width storage unit and the new execution number. Programmable controller programming apparatus characterized by comprising an execution number setting means for changing on the basis of and.