JPH05127707A - Sequence program check device - Google Patents

Abstract

PURPOSE:To eliminate operation delay and to correct errors by providing a presetting function which previously generates input signal data to a sequencer as a time series. CONSTITUTION:The total control unit 10 of a sequence program check part 9 has a sequencer 1 wherein a program to be checked is loaded and a simulation test operation part 4 which generates input data to the sequencer 1, generates all input data to the sequencer 1, and monitors all output signals from the sequencer 1 through communication units 2 and 11. The total control unit 10 functions to generate the input signal data to the sequencer 1 as the time series with the preset command of the simulation test operation part 4 and inputs them to the sequencer 1 at specified timing. Namely, the input signal data can be generated on an on-line basis. Therefore, a delay error of an input switch is eliminated and an error such as an omission can be corrected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sequence program check device applicable to check programs of all sequencers having a communication unit capable of transmitting / receiving the states of input / output signals.

[0002]

2. Description of the Related Art An example of a conventional sequence program check device is shown in FIG. 1 is a sequencer in which a program to be checked is installed, and a control logic execution unit 3
And an input / output unit 21. Reference numeral 16 denotes a trial run operation panel for generating an input to the sequencer and displaying the output state of the sequencer. The trial run operation panel 16 is composed of an input switch group 17 and an output lamp group 18. The sequencer 1 and the trial run operation panel 16 are connected to the input wiring 19 Are connected by an output connection 20.

The operation of this device is as follows. (1) The person in charge of program check is the trial run control panel 16
From the input switch group 17 above, a switch to be turned ON / OFF is selected and switched. (2) The input / output unit 21 of the sequencer 1 inputs this signal via the input connection 19, and the control logic execution unit 3 executes the logic accordingly. (3) As a result, the output signal output from the sequencer 1 is the sequencer input / output unit 19 and the output connection 20.
After that, the output lamp corresponding to the output signal is turned on / off from the output lamp group 18 on the trial operation operation panel 16.

[0004]

In the conventional apparatus shown in FIG. 2 described above, the number of input / output signals to / from the sequencer 1 is increasing with the recent increase in the processing capacity and memory capacity of the sequencer 1. However, there is a problem that the operation of the input switch of the trial run operation panel 16 in the sequence verification test becomes complicated. Moreover, since it is necessary to perform this complicated input switch operation at a predetermined timing while looking at the sequencer operation diagram, mistakes such as operation delay and omission are likely to occur, and if there is an error, a verification test is started. Has led to the problem of having to start over.

The present invention has been made in view of the above problems, and an object thereof is to provide a sequence program check device capable of correcting an error by eliminating an operation delay.

[0006]

In order to achieve the above object, the structure of the present invention is a sequence program created by artificially generating an input to a sequencer and monitoring the state executed by the sequencer. In the sequence program check device for verifying the above, a general control unit that creates input signal data to the sequencer and monitors all output signals from the sequencer, a communication unit between this general control unit and the sequencer, a simulated test operation section, Communication unit, input / output signal status display unit,
A sequence program check unit including an operation keyboard and a signal storage unit is provided, and the general control unit further has a preset function of previously creating input signal data to the sequencer in time series. And

[0007]

When the input signal data is created as a function of the general control unit, the preset command is used to create the input signal data to the sequencer in a time-series manner, and the input signal data is occasionally set at the timing specified by the sequencer. It can be input moment by moment and can be created offline as input signal data.

[0008]

Embodiments of the present invention will be described with reference to FIGS. 1 and 3 to 7. FIG. 1 shows an embodiment of a sequence program check device. A reference numeral 1 is a sequencer in which a program to be checked is installed, and is composed of a control logic execution unit 3 and a sequencer communication unit 2 for a sequence program check unit. Reference numeral 4 denotes a simulated trial operation operating unit that generates an input to the sequencer. The simulated trial operation operating unit control unit 5, pointing device 6 (light pen in FIG. 1), sequence program check unit 9
And a simulated trial operation operation unit communication unit 7 and a simulated trial operation operation panel display unit 8. Reference numeral 9 denotes a sequence program check unit, which is a general control unit 1
0, the communication unit 11 with the sequencer 1, the communication unit 12 with the simulated test operation unit 4, the input / output signal status display unit 13, the operation keyboard 14, the signal storage unit 15
The overall control unit 10 controls each of these units 11, 12, 13, and 15.

Among them, the general control unit 10 of the sequence program check unit 9 generates all the inputs to the sequencer 1 and monitors all the output signals from the sequencer 1 by using the communication units 2 and 11 with the sequencer 1. Through.

A screen (for example, as shown in FIG. 3) showing an input signal to the sequencer 1 designated in advance is displayed on the display unit 8 of the simulated test operation unit 4, and the person in charge of programming is pointing device 6 (for example, light). The pen) is moved to the position of the signal to be switched ON / OFF, and the switching instruction is given.

This instruction signal is read by the general control unit 10 of the sequence program check unit 9 via the simulated trial operation operating unit communication unit 7.

The general control unit 10 reverses the ON / OFF state of this instruction signal, transmits the state to the simulated trial operation operating unit 4 via the communication unit 7 of the simulated trial operation operating unit 4, and responds to the signal. Change the position color. This signal is also input to the sequencer 1 via the communication unit 2 of the sequencer 1.

The sequencer 1 executes the logic according to the changed input in the control logic execution unit 3.

ON / OF of a signal designated in advance
The state of F is displayed on the screen of the input / output signal state display unit 13 of the sequence program check unit 9 as shown in FIG.

Further, the preset function will be described here. On the initial screen 3 shown in FIG. 5 of the display unit 13 of the sequence program check unit 9, the operation keyboard 1
In step 4, the input signal data creation menu is selected to put the general control unit 10 into the sequencer input signal holding mode.
At this time, the screen shown in FIG. 6 is displayed on the input signal status display unit 13.

Next, the operation keyboard 14 is used to specify the signal input timing to the sequencer 1. Specifically, this is performed by pressing the function key shown in the lower part of FIG. 6 and moving the designated step to the left or right.

Then, the simulated test operation unit 4 uses the pointing device 6 to generate a simulated input signal (on / off state) to the sequencer. Overall control unit 10
Then, the input signal data with the specified input timing time is held.

After returning to the initial screen with the end function key, the preset menu is selected to put the general control unit 10 into the input signal data preset mode. The screen shown in FIG. 7 is displayed on the input signal status display unit 13.

Press the preset function key to
The held input signal data is added to the sequencer moment by moment. The sequencer status is displayed as a trend on the screen of FIG.

[0020]

As described above, according to the present invention, since the input data for the verification test to the sequencer can be created off-line by the preset function, the delay error of the input switch operation is eliminated, and There is room for corrections for mistakes such as omissions, so there is no need to redo the verification test.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of a conventional example.

FIG. 3 is a diagram showing an example of a display screen on a simulated trial operation operating unit.

FIG. 4 is a diagram showing an example of a display screen of an input / output display unit.

FIG. 5 is a diagram showing an example of an initial screen of an input / output display unit.

FIG. 6 is a diagram showing an example of a display screen of an input / output display unit in an input signal holding mode.

FIG. 7 is a diagram showing an example of a display screen of an input / output display unit in a preset mode.

[Explanation of symbols]

 1 Sequencer 2 Sequencer Communication Unit 3 Control Logic Execution Section 4 Simulated Trial Operation Section 5 Simulated Trial Operation Section Control Unit 6 Pointing Device 7 Simulated Trial Operation Section Communication Unit 8 Simulated Test Operation Section Signal Display Unit 9 Sequence Program Check Section 10 General Control Unit 11 Communication unit with sequencer 12 Communication unit with simulated test run operation unit 13 Input / output signal status display unit 14 Keyboard 15 Storage unit

Claims (1)

[Claims] 1. By artificially generating an input to a sequencer and monitoring the state executed by the sequencer,
In a sequence program check device that verifies the created sequence program, a general control unit that creates input signal data to the sequencer and monitors all output signals from the sequencer,
Communication unit between this general control unit and sequencer,
It has a sequence program check unit consisting of a communication unit with the simulated trial operation operation unit, an input / output signal status display unit, an operation keyboard, and a signal storage unit.In the general control unit, the input signal data to the sequencer is further preliminarily stored. A sequence program checking device having a preset function that is created in time series.