JPH0777930A - System definition generating device - Google Patents

Abstract

PURPOSE:To easily and securely register system definitions. CONSTITUTION:A system definition generating process part 11 reads parameter initial values of system definitions of a programmable controller as an object of system definition registration and displays them at a display part 14. Then the parameter set value of a specified parameter and held diagnostic information are read out of the system definition information of the programmable controller which refers to the system definitions on the basis of a definition information readout command and a diagnostic information readout command, the corresponding parameter at the display part 14 is updated and displayed, and the diagnostic information is displayed. On the basis of parameter setting information from an input part 13, the corresponding parameter value at the display part 14 is updated to generate system definitions and when a write command is inputted, the generated system definitions are written in the programmable controller as the object of registration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system definition creating apparatus for registering system definition information in a programmable controller in a system constructed by a programmable controller and peripheral devices, and an actual system stored in the programmable controller. The present invention relates to a system definition creating device that can create new system definition information based on definition information.

[0002]

2. Description of the Related Art Generally, when operating a programmable controller, it is necessary to register a system definition, which is a convention for identifying each interface, depending on its usage, the type of associated peripheral device, and the like. This system definition includes system registration that defines the operating status of the programmable controller, program registration that is the monitoring specification of the program created by the user, T-link registration that specifies the rules of the input / output device connected to the programmable controller, and programmable controllers. P link registration, which is the designation of the connection.

When the programmable controller is used, the registration information is individually registered using a design document or the like to construct a desired system. Conventionally, the system definition is registered in each programmable controller by an operator referring to a design document or the like by operating a key in a program loader or the like.

FIG. 6 is a flowchart showing the processing procedure of the program loader at the time of system definition registration. In the state where the programmable controller and the program loader are connected in advance, the system definition stored in advance in the programmable controller is read by the program loader and displayed on the display unit (step S21). Next, in step S22, the system definition is created by setting each parameter of the system definition read by the operator by operating the key of the program loader or the like to a value suitable for the system to be constructed according to the design document or the like.

Then, in step S23, the created system definition is written in the programmable controller, and in step S24, it is determined whether or not there is an abnormality with the programmable controller in an operating state. When it is normal, the system definition registration is completed. However, if there is an abnormality, the process returns to step S22 to check each abnormality of the programmable controller and set each parameter of the system definition again to create a new system definition. There is.

[0006]

However, in the above-mentioned conventional system definition creating apparatus, at the time of creating the system definition, each parameter of the system definition is set for each programmable controller by the key operation of the operator. As the system becomes large in scale and the function of the programmable controller becomes more sophisticated, the time required to create the system definition increases due to the increase and complexity of the information to be registered. There is an unsolved problem of doing so.

Further, since the system definition information must surely cover the configuration of the programmable controller system, there is a problem that normal registration cannot be performed unless all system definitions are set correctly. Therefore, the present invention has been made in view of the above-mentioned unsolved problems of the related art, and is a system capable of reliably and easily registering a system definition even in the case of a complex and large-scale programmable controller system. The purpose is to provide a definition creating device.

[0008]

In order to achieve the above object, a system definition creating apparatus according to the present invention stores system definition information such as system configuration information and operating environment constructed by a programmable controller and peripheral devices. In a system definition creation device for creating and registering in a programmable controller, definition information reading means for reading out actual system definition information registered in an actual programmable controller, and diagnostic for reading out diagnostic information held in the actual programmable controller. An information reading unit and a definition creating unit for creating a new system definition based on the system definition information and the setting information from the input unit while displaying the actual system definition information and the diagnostic information on the display unit. It is characterized by that.

[0009]

The definition information reading means reads out the actual system definition information registered in the operating programmable controller, and similarly, the diagnostic information reading means reads out the diagnostic information held by the operating programmable controller and defines it. In the creation means,
The settings set based on the system definition information and the design document from the input section while displaying the actual system definition information read by the definition information reading section and the diagnostic information read by the diagnostic information reading section on the display section. Create a new system definition based on the information.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a system including a programmable controller to which a system definition creating device according to the present invention is applied and peripheral devices. This system consists of m programmable controllers PL
C1 to PLCm are linked, and each programmable controller PLC1 to PLCm has a predetermined number n.
Input / output device I as a peripheral device (for example, n = 15)
/ O1 to I / On are connectable, and the system definition described above, which is set according to the usage method, type, etc. of the connected input / output devices I / O1 to I / On, is used as a system definition creating device. Is registered by the program loader 10.

FIG. 2 shows a programmable controller PL.
3 is a block diagram showing the configurations of Ci and a program loader 10. FIG. Programmable controller PLC1 to PLC
m has the same functional configuration, and the programmable controller PLCi will be described here. The programmable controller PLCi includes a processing unit 21 and a diagnosis unit 2
2 and a memory 23. The processing unit 21 includes a program loader 10 and input / output devices I / O1 to I / On.
Initial values of system-defined parameters for exchanging data with each other, executing processing based on the processing program input from the program loader 10, and identifying interfaces with the input / output devices I / O1 to I / On. And parameter setting values are input and stored in the memory 23, and the memory 23
Based on the system definition stored in
Data is exchanged with O1 to I / On.

When the system definition is registered, the diagnostic section 22 self-diagnoses whether or not the connection state between the programmable controller PLCi and the connected input / output devices I / O1 to I / On is normal. Performs diagnostic results in memory 2
3, the processing unit 21 executes a predetermined processing program when the result of the diagnosis by the diagnosis unit 22 is that the processing program can be executed, and the connected input / output devices I / O1 to I / O1 to I
Data is input to and output from / On.

On the other hand, the program loader 10 exchanges data with the programmable controller PLCi,
A system definition creation processing unit 11 that creates a system definition based on the system definition from the programmable controller PLCi, a memory 12, and an input unit 1 such as a keyboard.
3 and a display unit 14 such as a CRT display, and the system definition creation processing unit 11 determines a predetermined amount of system definition information and diagnostic information from the programmable controller PLCi based on a key operation of an operator from the input unit 13. Information is read out, stored in the memory 12 and displayed on the display unit 14, and a system definition is created based on the system definition set value by the key operation from the input unit 13.

Next, the operation of the above embodiment will be described with reference to the flowchart of FIG. 3, which shows the processing procedure of the system definition creation processing unit 11. First, in step S1,
When a start command is input by an operator's key operation on the input unit 13, a transmission request is sent to the processing unit 21 of the programmable controller PLC, and the memory 2
The system-defined parameter initial values stored in No. 3 are input, stored in the memory 12, and displayed on the display unit 14.

Next, in step S2, it is determined whether a system definition read command has been received. If a system definition read command has been received, step S3 follows and the programmable controller that references the system definition , Reads out the setting value of the parameter specified by the system definition reading command from among the system-defined parameter setting values, updates and stores the corresponding parameter value of the parameter initial value stored in the memory 12, and displays it. The corresponding parameter value displayed on the unit 14 is updated and displayed on the display unit 14. Then, the process proceeds to step S4.

If the system definition read command is not received in step S2, the process proceeds to step S4 as it is. In step S4, it is determined whether or not the diagnostic information read command is input from the input unit 13 to read the diagnostic information. When a command is input, the process proceeds to step S5, the diagnostic information held by the programmable controller PLC that refers to the system definition is input, displayed on the display unit 14, and stored in the memory 12. Then, step S6
Move to.

When the diagnostic information read command is not input in step S4, the process proceeds to step S6 as it is, and in step S6, the operator selects the design document of the programmable controller system and the display unit 1.
On the basis of the diagnostic information and the like displayed in 4, the parameters displayed on the display unit 14 are updated based on the parameter setting information that is set and input by the key operation on the input unit 13, and the parameters are set as the creation system definition. To set.

Next, in step S7, it is determined whether or not the setting of each system-defined parameter is to be ended. If the setting is not to be ended, the process returns to step S6 and the input unit 1
Each parameter is set based on the parameter setting information from No. 3, and when the setting is completed, the process proceeds to step S8 to end the system definition creation, store the created system definition in the memory 12, and then step S9. Move to.

Then, in step S9, it is determined whether or not a write command has been input. If the write command has not been input, the process waits until it is input, and if the write command has been input, In step S10, the creation system definition stored in the memory 12 is written in the programmable controller to be registered, and the process proceeds to step S11.

In step S11, it is determined whether or not an abnormality has occurred as a result of the self-diagnosis by the programmable controller in which the creation system definition is registered. If an abnormality has occurred, the process returns to step S6 to create the creation system definition. When the setting of each parameter setting value is changed and no abnormality occurs, it is determined that a normal system definition has been registered, and the system definition creation processing ends.

Therefore, for example, assuming that the programmable controller PLC1 of the programmable controller system of FIG. 1 is connected with the input / output devices I / O1 to I / O15 having the device configuration as shown in FIG. 4, the programmable controller Similarly, it is assumed that the input / output devices I / O1 to I / O15 are also connected to the PLC2, and in the system definition information of the programmable controller PLC1, the system definition in which only the "operating environment" of the input / output device is changed is programmable. When setting to the controller PLC2, first, the program loader 10 is connected to the programmable controller PLC2 to start the program loader 10, and the system defined parameter initial value of the programmable controller PLC2 is read.

Then, the program loader 10 is connected to the programmable controller PLC1 and a key operation of a keyboard in the input unit 13 is performed to specify parameters such as a device configuration other than the operating environment of the input / output device as a system definition read command. As a result, the parameter setting values such as the designated device configuration are read from the system definition of the programmable controller PLC1, stored in the memory 12, and displayed on the display unit 14.

Next, the programmable controller PL
A diagnostic information read command for reading the diagnostic information of C1 is input, whereby the diagnostic information stored in the programmable controller PLC1 is read out, stored in the memory 12, and displayed on the display unit 14. Then, the operator, for example, as shown in FIG. 5, displays the programmable controller PLC1 displayed on the display unit 14.
System definition information and diagnostic information, the parameters of the "operating environment" of the input / output device, which should be changed, are in an abnormal state based on the design document, for example, the input / output device I / O9. Then, the I / O 15 parameter setting values are set and changed.

As a result, the creation of the system definition in the programmable controller PLC2 is completed, the program loader 10 is connected to the programmable controller PLC2, and the operator inputs a write command from the input unit 13, whereby the created system definition is programmable. Transmitted to the controller PLC2, in the programmable controller PLC2, the processing unit 21 stores the input system definition in the memory 23, and the diagnostic unit 22 performs self-diagnosis based on the registered system definition, and an abnormality has occurred. In this case, the program loader 10 is notified of the abnormality. When an abnormality occurs, the program loader 10 changes the parameter setting of the abnormal portion and re-registers the system definition in the programmable controller PLC2.

Therefore, as in the above-mentioned embodiment, for the parameters that can be applied as they are without changing the parameter setting values from the system definition information of the already registered programmable controller, the parameter setting values are changed. The time required for the parameter setting is read by reading the value as it is and setting it as the parameter setting value of the corresponding parameter in the creation system definition, and inputting only the parameter that needs to be changed from the input section 13 as parameter setting information. It can be greatly shortened, and the amount of input work such as basic setting items can be reduced.

Further, since the system definition information is read out from the designated programmable controller and replaced with the system definition information of the programmable controller, the correct system definition can be registered in the programmable controller without being familiar with the entire system. , The difficult part is sucked up from the programmable controller and used for creating the system definition information, so that the amount of creation work can be reduced.

Further, since the diagnostic information stored in the programmable controller is also read and displayed, even when the system definition information is registered according to the document, when the input / output device is abnormal, Since an abnormality of the input / output device can be recognized while creating the system definition, when an abnormality occurs in the diagnostic information, the parameter setting value of the abnormal portion is changed by operating the input unit 13. As a result, the abnormality can be resolved early, the occurrence of the abnormality can be prevented, and the work efficiency can be improved.

In the above embodiment, the system definition is created and registered while the connection between the programmable controller for registering the system definition and the programmable controller for referring to the system definition and the program loader is changed. However, for example, the system definition of the programmable controller that connects the program loader and the programmable controller of the system definition registration target and references the system definition linked to the programmable controller of the registration target is registered via the link. It is also possible to read from the controller and create the system definition in the program loader.

[0029]

As described above, according to the system definition creating apparatus of the present invention, the definition information reading means reads the actual system definition information registered in the programmable controller, and similarly, the diagnostic information processing is performed. The diagnostic information held by the programmable controller by means, and the setting information from the input unit set based on the system definition information read by the definition information reading unit and the design document and the diagnostic information displayed on the display unit. By creating the system definition based on the above, and storing the created system definition in the applicable programmable controller based on the write command, the time required to create the system definition can be shortened and the system definition can be created easily. It can be carried out.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a programmable controller system to which a system definition creating device according to the present invention is applied.

FIG. 2 is a block diagram showing configurations of a program loader and a programmable controller.

FIG. 3 is a flowchart showing a processing procedure of a definition creating unit.

FIG. 4 is an explanatory diagram for explaining the operation of the present invention.

FIG. 5 is a display example of diagnostic information.

FIG. 6 is a flowchart showing a processing procedure of a conventional system definition creating device.

[Explanation of symbols]

 10 program loader 11 system definition creation processing unit 12 memory 13 input unit 14 display unit 21 processing unit 22 diagnostic unit 23 memory

Claims (1)

[Claims] 1. In a system definition creating apparatus for creating system definition information such as system configuration information and operating environment constructed by a programmable controller and peripheral devices and registering the system definition information in the programmable controller, the system definition creating apparatus is registered in an operating programmable controller. Definition information reading means for reading the actual system definition information, diagnostic information reading means for reading the diagnostic information held by the operating programmable controller, and displaying the actual system definition information and the diagnostic information on the display unit. A system definition creating apparatus comprising: a definition creating unit that creates a new system definition based on the system definition information and the setting information from the input unit.