JPH05324052A - Interface check method for control system - Google Patents

Abstract

PURPOSE:To automatically check an interface only by performing one-action inputting from one worker without loading heavy burden to the worker. CONSTITUTION:This method is provided with a programmable controller 1, motor driving device 2 to drive a motor corresponding to control data sent from this programmable controller 1, and transmitting stations 4 and 5 to transmit the control data between this motor driving device 2 and the programmable controller 1. Then, a test mode for checking data to be transmitted between the programmable controller 1 and the motor driving device 2 is decided, items are allocated to data provided with various attributes and when the test mode is designated, the prescribed items are transmitted for either the programmable controller 1 or the motor driving device 2 to the other. Then, whether the items are correct or not is judged corresponding to whether these items are read and stored in addresses set in a memory or not, and the judged result is displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interface check method for a control system for driving a motor by transmitting control data sent from a programmer controller to, for example, a motor drive device.

[0002]

2. Description of the Related Art When a programmable controller controls a distant motor drive device to drive a motor, the programmable controller transmits control data to the motor drive device to control the motor drive device. FIG. 5 shows a configuration example of such a control system, 1 is a programmable controller,
2 is controlled by a control signal output from the programmable controller 1, and a motor drive device 4 for driving the motor 3 is transmitted and received between the programmable controller 1 and the motor drive device 2 via a transmission line 6. It is a transmission station.

By the way, in such a control system, it is necessary to check in advance whether or not the motor drive device 2 operates normally with respect to the control signal output from the programmable controller 1.

Conventionally, an interface check method has been used as a method for checking the data transmission between the programmable controller 1 and the motor drive device 2. However, it is difficult to actually operate the entire system to check the data. Was done.

(1) The worker 7 on the programmable controller 1 side uses the handy terminal 8 to create an output state of a control signal for the motor drive device 2 in the programmable controller 1. (2) At the same time, the operator of the motor drive device 2 side is notified by voice using the wired or wireless communication device 9 that the control signal is being transmitted.

(3) Worker 1 on the side of the motor drive device 2
When 0 confirms “ON” of the signal output on the programmable controller 1 side by the above (2), various measuring instruments and handy terminals 11 are installed at predetermined positions of the motor drive device 2 to which the output signal of the programmable controller 1 should be input. Etc., and the transmission data is checked. (4) Conversely, data transmission from the motor drive device 2 side to the programmable controller 1 side is also performed in the same manner as in (1), (2), and (3) above.

[0007]

However, in the interface check method of such a control system, an operator is required on both the programmable controller 1 side and the motor drive device 2 side, and data exchanged between the devices is required. Is a complicated numerical value that is difficult for humans to understand (attributes such as unit and data type are undefined), and to check whether the data sent from the sending side is received at the specified place on the receiving side, Since it requires a reference that represents the attributes and it is necessary to judge whether or not they match, there are errors due to the timing of the output and the reading of the workers and the error when reading the data from the terminal. There is a problem that it is easy to occur and it takes a considerable amount of time to check.

According to the present invention, the interface check can be automatically performed by a single operator's one-touch input without imposing a great burden on the operator, and the time required for the check can be greatly shortened. It is an object of the present invention to provide an interface check method of a control system capable of performing the control.

[0009]

In order to achieve the above object, the present invention provides a programmable controller, a control target controlled by control data sent from the programmable controller, and a control target and the programmable controller. In a control system equipped with a transmission device for transmitting control data by a method, a test mode for checking data transmitted between the programmable controller and the controlled object is determined, items are assigned to data having various attributes, and a test is performed. When a mode is designated, a predetermined item is transmitted from one of the programmable controller and the controlled object to the other, and the correctness of the item of the interface is checked depending on whether this item is read and stored at the address set in the memory. Judgment and display the judgment result And by, so that checks the interface.

[0010]

In the interface check method for such a control system, the items assigned to the data sent from the programmable controller and the controlled object are transmitted by simply specifying the test mode, and the correctness of this item is automatically determined. Since it is judged and displayed by one operator, it is possible for one operator to check the interface with one-touch input, greatly reducing the time required for checking without imposing a great burden on the operator. can do.

[0011]

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

FIG. 1 shows a first embodiment for explaining an interface check method for a control system according to the present invention. The same parts as those in FIG. 5 are designated by the same reference numerals. In the present embodiment, as shown in FIG. 1, there are two modes: a mode in which data transmitted from the programmable controller 1 to the motor drive device 2 is checked and a mode in which data transmitted from the motor drive device 2 to the programmable controller 1 is checked. Make an agreement on the test mode and assign it to data with various attributes (unit, data type, etc.).
D-NO. Is assigned, and this ID-NO. The file 12 in which the reference data is written corresponding to the above is provided in the programmable controller 1, and the file 13 in which the feedback data is written is provided in the motor drive device 2. Here, the file 12 provided in the programmable controller 1 has an ID-NO. The speed, torque, sequence, and voltage are written as reference data examples corresponding to. In addition, the motor drive device 2
ID-NO. The speed, torque, sequence, and voltage are written as examples of feedback data corresponding to the above.

In the motor drive device 2, the ID-N transferred from the programmable controller 1 is transferred.
O. The memory 2A in which the addresses for storing P1, P2, P3 and P4 are set, and the ID-NO. Determination unit 2B that determines whether or not the ID-NO. An input / output unit 2C for inputting / outputting the determination result and the determination result is provided, and the ID-NO. D1, D2, D3, D
4 is set, and the ID-NO. 1 corresponding to the set address of the memory 1A is set. Determination unit 1B that determines whether or not the ID-NO. And input / output unit 1C for inputting / outputting the determination result
Is provided.

Also, the ID-NO. There is provided a work terminal 14 having a keyboard for designating a normal reception completion signal output from the motor drive device 2 side and a display section for displaying an output of a check result transmitted in the test mode. Next, the interface check method of the data transmission system configured as described above will be described.

First, the work terminal 14 issues a test mode command to the programmable controller 1, and among the messages as shown in FIG. When 1 is selected, the programmable controller 1 causes the reference data written in the file 12, for example, IDs P1, P2, P3 and P4 instead of speed, torque, sequence and voltage, respectively.
-NO. To the transmission station 4. The ID-NO. Is transferred to the transmission station 5 located at a distant place via the transmission line 6, the transmission station 5 receives the data and at the same time gives it to the motor drive device 2.

In the motor drive device 2, the ID-NO. When receiving the ID-NO. Is read to the corresponding set address of the memory, and if it is read, a normal reception completion signal is sent to the transmission station 5 as a response. This normal reception completion signal is taken into the programmable controller 1 from the transmission station 5 via the transmission line 6 and the transmission station 4, and outputs it to the work terminal 14. Work terminal 1
In 4, the display shows that the transmission check to the motor drive device 2 was normal as shown in FIG.

Next, the message No. displayed on the display unit of the work terminal 14 as shown in FIG. 2 is selected, the motor drive device 2 substitutes the feedback data written in the file 13, for example, the ID-NO.D1, D2, D3, and D4 instead of the speed, torque, sequence, and voltage. To the transmission station 4 via the transmission station 5 and the transmission line 6.

The programmable controller 1 receives the ID-NO. Is read, and it is judged whether or not it has been read into the corresponding set address of the memory. Then, the work terminal 14 receiving the normal end signal displays the normal end of the check on the console screen as shown in FIG.

As described above, in this embodiment, the mode in which the data transmitted from the programmable controller 1 to the motor drive device 2 is checked and the motor drive device 2 is checked.
From the ID-NO. 2 to the data having various attributes by making an agreement between two test modes in which the data transmitted from the programmable controller 1 is checked. Are assigned to these ID-NO. By transmitting the data between the programmable controller 1 and the motor drive device 2, it is possible to automatically check the data designation between transmission and reception, so that the reference work of the data attribute reference can be omitted, and also as a manual labor. Work terminal 1
Since only one operator who operates 4 is required, it is possible to eliminate the burden of complicated work on the operator and improve the reliability of the interface check.

In the above embodiment, the case where the work terminal 14 is connected to the programmable controller 1 to perform the interface check has been described. However, the work terminal 14 is portable and portable, so that the motor drive device 2 side is used. Also, the same interface check as described above can be performed by connecting to each transmission station.

FIG. 4 shows a system configuration for explaining another embodiment of the present invention. In this embodiment, the programmable controller 1 and the motor drive device 2
The operator station 15 is installed at a position different from
By giving a test mode command output from the operator station 15 to the programmable controller 1 and the motor drive device 2 through the transmission station 16, the interface check between the programmable controller 1 and the motor drive device 2 is performed in the operator station 15. It is the one. Even with such a system configuration, it is possible to obtain the same effects as the above.

In each of the above-mentioned embodiments, the interface check method of the control system for controlling the motor drive device by the control data sent from the programmable controller 1 has been described, but the same applies to the system for controlling other controlled objects. Can be applied to.

[0023]

As described above, according to the present invention, an interface check can be automatically performed by a single operator performing one-touch input without imposing a great burden on the operator. It is possible to provide an interface check method for a control system that can significantly reduce the time required for checking.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an embodiment for explaining an interface check method for data transmission according to the present invention.

FIG. 2 is a diagram showing a selection screen in a test mode displayed on a work terminal in the embodiment.

FIG. 3 is a diagram showing a display screen of an execution result in the test mode.

FIG. 4 is a system configuration diagram for explaining another embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a configuration example of a conventional control system.

[Explanation of symbols]

1 ... Programmable controller, 1A ... Memory,
1B ... Judgment part, 2 ... Motor drive device, 2A ...
Memory, 2B ... Judgment unit, 3 ... Motor, 4, 5, 16
...... Transmission station, 6 ...... Transmission path, 12, 13 ......
File, 14 ... Work terminal, 15 ... Operator station.

Claims (1)

[Claims] 1. A control system comprising a programmable controller, a control target controlled by control data sent from the programmable controller, and a transmission device for transmitting control data between the control target and the programmable controller. , Arranging a test mode for checking data transmitted between the programmable controller and the control target, allocating items to data having various attributes, and when the test mode is designated, one of the programmable controller and the control target Check the interface by transmitting the specified item from the other to the other, judging whether the item of the interface is correct or not by reading and storing it at the address set in the memory, and displaying the judgment result. To do Characteristic control system interface check method.