JPH0612106A - Operation procedure indicating device - Google Patents

Abstract

PURPOSE:To provide an operation procedure indicating device capable of easily being extended to an existing system having the component of an existing operation panel on which a display lamp for guiding a recovery operation is not arranged. CONSTITUTION:This indicating device is an indicating device 100 extended to the system composed of a facility 400, a programmable controller 200 performing the sequence control of the facility 400 and an operation panel 300 on which an operation switch group commanding control contents for the programmable controller 200 is arranged. A data memory 44 preliminarily stores abnormal message data and operation procedure data by the use of a registering device 500. When a CPU 45 detects the generation of an abnormality, the CPU reads the abnormal message data and operation procedure data from the data memory 44, displays an abnormal message and an operation procedure on a liquid crystal display 30 and commands the control contents to the programmable controller 200 in accordance with the instructions from function keys 31 to 37.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation procedure instruction device, more specifically, equipment (control target) and a programmable controller (hereinafter referred to as a PC) for sequence control of the equipment.
And an operation panel provided with an operation switch group for instructing control contents to a PC, and can be easily added to a system to restore the equipment to a normal state when an abnormality occurs in the equipment. The present invention relates to an operation procedure instruction device for instructing an operator of the operation procedure of 1.

[0002]

2. Description of the Related Art Conventionally, as an operation procedure instruction device for instructing an operator with an operation procedure for returning the equipment to a normal state when an abnormality occurs in the equipment of the above system, Japanese Patent Laid-Open No. 2-138605 has been disclosed. The ones described are known.

In this conventional operation procedure instruction device, a display lamp is provided in association with each operation switch on an operation panel provided with an operation switch group for instructing control contents to a PC.
It employs a configuration in which the operator is instructed on the operating procedure by sequentially turning on the display lamps.

[0004]

However, according to the above-mentioned conventional operation procedure instruction device, since it is necessary to dispose the display lamp in the vicinity of the operation switch, the existing operation panel without the display lamp is a constituent element. There is a problem that it is difficult to add it to the existing system.

An object of the present invention is to solve the above problems and provide an operation procedure instruction device which can be easily added to an existing system.

[0006]

In order to solve such a problem, the operation procedure instruction device according to the present invention is shown in FIG.
As shown in FIG. 3, an operation procedure instruction to be added to a system including equipment, a programmable controller that sequence-controls the equipment, and an operation panel provided with an operation switch group that instructs the programmable controller to control the content of the operation. A device, which comprises an operation unit, a display unit, a storage unit, and a processing unit, and the storage unit is configured to previously store abnormality message data and operation procedure data due to use of an external registration device, and the processing unit. When an abnormality is detected, the abnormality message data and the operation procedure data are read from the storage unit, the abnormality message and the operation procedure are displayed on the display unit, and the control contents are instructed to the programmable controller according to the instruction from the operation unit. It is characterized by being configured as follows.

[0007]

According to the present invention, the operation lamp is not of the type in which the indicator lamp is arranged near the operation switch unlike the conventional operation procedure instruction device, but when the operator operates the operation portion based on the display on the display portion. Since the processing unit is configured to instruct the PC to control the contents according to the instruction of the operation unit, it is possible to easily add to the existing system that has the existing operation panel without the indicator lamp as a component. Become.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
It will be described based on.

As shown in FIG. 1, the operation procedure instruction device 100 according to this embodiment is added to an existing system including a programmable controller (PC) 200 and an operation panel 300.

(1) PC 200 The PC 200 is configured to control the equipment 400 in a sequence and detect the occurrence of any abnormality in the equipment 400 by a monitoring program. PC
The device 200 determines that an abnormality has occurred in the equipment 400, for example, when one cycle time of the equipment 400 exceeds a predetermined time.

(2) Operation panel 300 On the operation panel 300, a group of operation switches (loader raising switch 1, loader lowering switch 2, loader advancing switch 3 and loader retracting switch) operated by the operator to cause the equipment 400 to perform various operations. 4, a loader chuck switch 5, and a loader unchuck switch 6) are provided. Further, the PC 200 is installed on the operation panel 300 as the equipment 400.
An indicator lamp 7 is provided which is turned on when it is detected that an abnormality has occurred. Further, on the operation panel 300, name plates 8 to 14 are provided in association with each other in the vicinity of the operation switches 1 to 6 and the indicator light 7.

As shown in FIG. 2, in the loader raising switch 1, one fixed contact 15 is connected to the negative terminal of the DC power source 17, and the other fixed contact 16 is connected to the input terminal 19 of the input unit 18 of the PC 200. 20 is connected to the negative terminal 20. The + terminal 19 of the input terminals 19 and 20 is connected to the + terminal of the DC power supply 17. The light emitting diode 22 of the photocoupler 21 is connected between the input terminals 19 and 20. The phototransistor 23 of the photocoupler 21 is P
It is connected to the internal circuit 24 of the C200. When the operator turns on the loader raising switch 1, the light emitting diode 22 conducts and emits light, and the phototransistor 23 receives light and conducts. The internal circuit 24 of the PC 200 detects that the loader raising switch 1 is turned on by the conduction of the phototransistor 23, and raises the loader (not shown) of the equipment 400.

As for the other operation switches 2 to 6,
Like the loader raising switch 1, each is connected to the input unit 18 of the PC 200, and the internal circuit 24 of the PC 200 is connected.
Is configured to detect that the operator has turned on each of the operation switches 2 to 6 and to cause the loader of the equipment 400 to operate correspondingly according to a command from each operation switch 2 to 6.

The indicator light 7 is, as shown in FIG.
It is connected between the + side terminal 26 of the output terminals 26 and 27 of the 0 output unit 25 and the + terminal of the DC power supply 17. PC
The internal circuit 24 of the 200 is installed in the equipment 40 by the monitoring program.
When it is determined that an abnormality has occurred in 0, the detection transistor 2
A Hi level signal is output to the base of 9 to make the detection transistor 29 conductive. When the detection transistor 29 becomes conductive, the indicator lamp 7 is energized and lights. The operator can know from the lighting of the indicator lamp 7 that some abnormality has occurred in the equipment 400.

(3) Operation Procedure Instructing Device 100 As shown in FIG. 4, the operation procedure instructing device 100 comprises a liquid crystal display 30, various function keys 31 to 37, and a control section 38.

The various function keys 31 to 37 are arranged around the display screen of the liquid crystal display 30, and the menu key 31, the cancel key 32, the MSG (message) key 33, the END (end) key 34, and the upward movement cursor key 35. And a downward movement cursor key 36 and an execution key 37.

As shown in FIG. 4, the control unit 38 includes various interfaces 39 to 42, a program memory (ROM) 43, a data memory (RAM) 44, and a CP.
It consists of U45 and address / data bus 46.

Interfaces The various interfaces 39 to 42 are the display interface 39, the function key interface 40, and the P interface.
It consists of a C / operation panel interface 41 and an external registration device interface 42.

The display interface 39 is connected to the liquid crystal display 30.

Function key interface 40
Are connected to various function keys 31 to 37.

PC / operation panel interface 41 is a PC
200 and operation panel 300. The PC / control panel interface 41, as shown in FIG.
Input terminals 47, 4 for inputting the abnormality detection signal from
Have eight. The + side terminal 47 of the input terminals 47 and 48 is connected to the + terminal of the DC power supply 17, while the − side terminal 48 is connected.
Are output terminals 26, 2 of the output unit 25 of the PC 200.
7 is connected to the + side terminal 26. A light emitting diode 50 of a photocoupler 49 is connected between the input terminals 47 and 48. The phototransistor 51 of the photocoupler 49 is connected to the internal circuit 52 of the operation procedure instruction device 100. When the internal circuit 24 of the PC 200 determines that an abnormality has occurred in the equipment 400 as described above, the detection transistor 29 becomes conductive. When the detection transistor 29 becomes conductive, the light emitting diode 50 becomes conductive and emits light, and the phototransistor 5
1 receives light and conducts electricity. The internal circuit 52 of the operation procedure instruction device 100 detects that some abnormality has occurred in the equipment 400 due to the conduction of the phototransistor 51, and executes a process described later.

In addition, the PC / operation panel interface 41
2 has input terminals 53 and 54 for inputting a loader rise command signal from the operation panel 300, as shown in FIG. The + side terminal 53 of the input terminals 53 and 54 is connected to the connection path 55.
Via the input terminal 1 of the input unit 18 of the PC 200
It is connected to the + side terminals 19 of 9, 20. In other words, the + side terminal 53 of the input terminals 53, 54 is the + side of the DC power supply 17.
Connected to the terminal. On the other hand, the-side terminal 54 is connected to the connection path 56.
Through the input terminals 19 and 20 of the PC 200
Connected to 0. In other words, the-side terminal 54 is connected to the fixed contact 16 of the loader raising switch 1. The light emitting diode 5 of the photocoupler 57 is provided between the input terminals 53 and 54.
8 are connected. The phototransistor 59 of the photocoupler 57 is connected to the internal circuit 52 of the operation procedure instruction device 100. When the loader lift switch 1 is turned on,
The light emitting diode 58 conducts and emits light, and the phototransistor 59 receives light and conducts. Operation procedure instruction device 100
The internal circuit 52 of 1 detects that the loader raising switch 1 is turned on by the conduction of the phototransistor 59. The operation procedure instructing device 100 inputs the loader lifting command signal as described above, as described later, when the equipment abnormality is the unregistered abnormality, the operator turns on the loader raising switch 1 and sets the data as the operation procedure. This is because it is stored in the memory 44.

Further, a PC / control panel interface 4
As shown in FIG. 2, the PC 1 sends a loader lift command signal similar to that when the loader lift switch 1 is turned on to the PC 20.
It has output terminals 60 and 61 for outputting to 0.
+ Side terminal 60 of the output terminals 60 and 61 (input terminals 53 and 5
4 is connected to the-side terminal 20 of the input terminals 19 and 20 of the input unit 18 of the PC 200, while the-side terminal 61 of the output terminals 60 and 61 is connected to the loader raising switch 1. It is connected to the fixed contact 15 side, and a switching transistor 62 is provided between the output terminals 60 and 61.
Are connected. In other words, the bypass circuit is formed in the loader raising switch 1, and the switching transistor 62 is provided in the bypass circuit. The switching transistor 62 performs a switching operation according to conduction / interruption of the phototransistor 64 of the photocoupler 63 provided in the base circuit. The collector side of the phototransistor 64 is connected to the + side terminal 53 of the input terminals 53 and 54. The light emitting diode 65 of the photocoupler 63 is the operation procedure instruction device 10
0 to the internal circuit 52. Operation procedure instruction device 10
When the internal circuit 52 of 0 makes the light emitting diode 65 conductive, the light emitting diode 65 emits light and the phototransistor 64 receives light and becomes conductive. When the phototransistor 64 becomes conductive, the switching transistor 62 becomes conductive and PC
The light-emitting diode 22 of the photocoupler 21 of the input unit 18 of 200 becomes conductive and emits light, and the phototransistor 2
3 receives light and becomes conductive. The internal circuit 24 of the PC 200 detects that the operation procedure instruction device 100 outputs the loader rise command signal due to the conduction of the phototransistor 23. The operation procedure instruction device 100 outputs a loader rise command signal to the PC 200 so that the operator can operate the control panel 3 when the equipment abnormality is a registered abnormality, as will be described later.
It is not necessary to turn on the loader raising switch 1 of 00, and instead, the loader can be raised by simply turning on the execution key 37 while looking at the operating procedure displayed on the display screen of the liquid crystal display 30. This is because

Although not shown, the PC / operation panel interface 41 has the loader raising switch 1 as described above.
In addition to the circuit corresponding to, the similar circuits corresponding to the other operation switches 2 to 6 are provided, and each circuit is configured to perform the same operation.

The external registration device interface 42 is connected to the external registration device 500.

Data Memory 44 In the data memory 44, abnormality message data created by using the external registration device 500 is stored in advance.

First, the external registration device 500 is used to create abnormal message data 66 as shown in FIG.
Each abnormality message data 66 is composed of abnormality number data 67 and abnormality message content data 68. In the case of this embodiment, a maximum of 50 abnormal message data 66 can be registered.

The abnormal message data 66 created using the external registration device 500 is stored in the data memory 44 via the external registration device interface 42. As shown in FIG. 6, the data memory 44 stores the abnormal number data 67 in the abnormal number data storage unit 69 and the abnormal message content data 68 in the abnormal message content data storage unit 70, respectively. The abnormal message content data 68 is stored separately.

Further, as shown in FIG. 7, the operation switch data 71 and the indicator light data 72 are stored in the data memory 44 in advance by using the external registration device 500. The operation switch data 71 and the indicator light data 72 are allocation number data 73 showing the connection correspondence between the operation switches 1 to 6 and the indicator light 7 and the PC / operation panel interface 41.
And name data 74. For example, the loader raising switch 1 is a PC / operation panel interface 41.
It is connected to the allocation number "01".

Then, the operation switch data 71 and the indicator light data 72 created by using the external registration device 500.
Are stored in the data memory 44 via the external registration device interface 42. As shown in FIG. 8, the data memory 44 stores the name data 74 in the operation switch data storage unit 75 and the allocation number data 7 in the operation procedure storage unit 76.
Memorize 3 respectively.

The operation procedure storage unit 76 has a data table 77 for each abnormal number. Abnormal number data 67 is stored at the head address of each data table 77, and allocation number data 73 or manual message number data 78 of the operation switches 1 to 6 to be operated first is stored at the next address. Operation switches 1 to be operated next at the address
Data indicating the switch operation procedure in the return operation such that the allocation number data 73 of 6 and the like are stored,
Also, the manual message number data 78 is stored in the address corresponding to the operation procedure. Here, the manual work message number data 78 is created together with the manual work message content data 79 by using the external registration device 500 and stored in the data memory 44 in consideration of the case where the manual work is required in the return operation. Manual message content data 79
Is stored in the manual message content data storage unit 80 in association with the manual message number data 78. Then, the END data 81 is stored at the address next to the storage address of the final operation procedure.

CPU 45 The CPU 45 executes a process of storing various data as described above in the data memory 44.

Further, the CPU 45 executes the processing shown by the flowcharts in FIGS. 9 and 10 during the operation of the equipment 400. Hereinafter, this process will be described in order.

I) The CPU 45 monitors the operation of the phototransistor 51 of the PC / operation panel interface 41 described above, and judges whether or not any abnormality has occurred in the equipment 400 (step S1).

Ii) When the CPU 45 detects the conduction of the phototransistor 51 and determines that an abnormality has occurred in the equipment 400, the CPU 45 reads out the abnormality message content data 68 from the abnormality message content data storage unit 70 of the data memory 44 and displays it on the display interface. An abnormality message is displayed on the display screen of the liquid crystal display 30 via 39 as shown in FIG. 11 (step S2). The abnormal message content data 68 stored in the abnormal message content data storage unit 70 has the latest selected abnormal message content data 68 stored at the head address. That is, the abnormal message content data 68 are rearranged and prioritized as shown in FIG.

Iii) The operator looks at the error message on the display screen and determines whether or not the corresponding error message is displayed.

Iv) -When it is determined that the corresponding abnormal message is displayed The operator sets the cursor at the display position of the corresponding abnormal message and turns on the execution key 37.

When the CPU 45 determines that the execution key 37 has been turned on (step S4), it sets N = 1 (step S5). Here, N is a data table 77 in which the abnormal number data 67 of the corresponding abnormal message is stored.
In, the address corresponding to the address after the address of the abnormal number data 67 and the subsequent addresses is corresponded.

Next, the CPU 45 causes the data table 77.
At the address corresponding to N = 1, that is, the allocation number data 73 of the operation switches 1 to 6 to be operated first,
Or, from the address where the manual work message number data 78 is stored, the allocation number data 7
3 or manual work message number data 78 is read out, and operation switches 1 to 6 corresponding to the assigned number data 73 are read.
Or the manual work message corresponding to the manual work message number data 78 is displayed on the display screen of the liquid crystal display 30 (step S6).

When the names of the operation switches 1 to 6 are displayed on the display screen, the operator turns on the execution key 37. When the CPU 45 determines that the execution key 37 is turned on (step S9), the execution key 3 is turned on when the execution key 37 is turned on.
After determining that it is the ON operation of step 7 (step S1
0), the light emitting diode 65 of the photocoupler 63 corresponding to the allocation number in the PC / control panel interface 41 is made conductive (step S11). By the conduction of the light emitting diode 65, the PC 200 controls the equipment 400 as in the case where the operation switches 1 to 6 are turned on, as described above. Then, N is incremented (step S12), and the process returns to step S6 again.

On the other hand, when the manual work message is displayed on the display screen, the operator performs the manual work according to the manual work message. Then, when the manual work is completed, the execution key 37 is turned on. The CPU 45
If it is determined that the execution key 37 is turned on (step S9), it is determined that the execution key 37 is turned on when the manual message is displayed (step S10), and N is incremented. Then (step S12), the process returns to step S6.

Thereafter, the CPU 45 displays the operation switch name or the manual work message on the display screen, and the operator turns on the execution key 37 for the operation switches 1 to 6 or finishes the manual work according to the display on the display screen. Thereafter, the execution key 37 is turned on.

When all the ON keys of the execution keys 37 for the return operation are completed, the CPU 45 determines that the END data has been read (step S7), and ends the processing. The termination of this process is also executed in step S8 when the operator notices that the abnormal message is erroneously selected and then turns on the cancel key 32.

Iv) -When it is determined that the corresponding abnormal message is not displayed, the operator turns on the cancel key 32. C
When the PU 45 determines that the cancel key 32 has been turned on (step S3), the PU 45 executes the process shown in FIG.

First, the CPU 45 finds the head data table of the unregistered data table 77 (steps S13, S14, S15). Note that steps S13 and S
The I shown in 15 corresponds to the address where the abnormal number data 67 is stored in each data table 77.

When the head data table of the unregistered data table 77 is found, N = 1 is set (step S16).
Here, N corresponds to the addresses after the address next to the address in which the abnormal number data 67 is stored in the data table 77, similar to N in FIG.

The operator uses the MSG key 33 when the manual operation is first required for the return operation after the cancel key 32 is turned on, and the corresponding operation switch when the operation switch operation is required. Turn 1 to 6 on.

When the operator turns on the MSG key 33, the CPU 45 determines that the MSG key 33 is turned on (step S17), and sets M = 1 (step S1).
8). Here, M corresponds to the address in the manual work message content data storage unit 80. Next, the CPU 45 finds the head address of the unregistered area in the manual message content data storage unit 80 (steps S19 and S20).
Next, the CPU 45 displays “M” at the address next to the address where the abnormal number data 67 is stored in the data table 77.
The character "SG" and the value of M are stored (step S2).
1). Next, N is incremented (step S2
2) and returns to step S17.

On the other hand, when the operator turns on the operation switches 1 to 6, the CPU 45 determines that the operation switch is turned on (step S23), and the data table 7
The allocation number data 73 of the operation switch that has been turned on is stored in the address next to the address in which the abnormal number data 67 is stored in step 7 (step S24). next,
N is incremented (step S22) and step S
Return to 17.

Thereafter, the CPU 45 controls the MSG of the operator.
In accordance with the key-on operation and the operation switch-on operation, the character "MSG" and the value of M and the operation switch allocation number data 73 are sequentially stored in the data table 77.

When all the returning operations are completed, the operator turns on the END key 34. CPU45
Determines that the END key 34 has been turned on (step S25), the E is displayed at the address N in the data table 77.
The ND data 81 is stored and the process ends (step S
26).

As described above, the operation procedure instruction device 100 according to the present embodiment is provided with the equipment 400, the PC 200 that controls the equipment 400 in sequence, and the operation switch groups 1 to 6 that instruct the PC 200 of the control content. It is an operation procedure instruction device added to a system including the operation panel 300. The operation procedure instruction device 100 includes an operation unit (function keys 31 to 37), a display unit (liquid crystal display 30), a storage unit (data memory 44), and a processing unit (CPU 45), and the storage unit 44 is externally registered. The processing unit 4 is configured to store in advance abnormal message data and operation procedure data due to the use of the device 500.
When detecting the occurrence of an abnormality, 5 reads the abnormality message data and the operation procedure data from the storage unit 44, displays the abnormality message and the operation procedure on the display unit 30, and the operation units 31 to 31.
According to an instruction from 37, the control content is instructed to the PC 200.

Therefore, according to the present embodiment, unlike the conventional operation procedure instruction device, the indicator lamp is not provided near the operation switch, but the operator operates the operation units 31 to 31 based on the display of the display unit 30. When the user operates 37, the processing unit 45 follows the instructions of the operation units 31 to 37 and the PC 20
Since the control contents are instructed to 0, it is possible to easily add to the existing system having the existing operation panel without the indicator lamp as a constituent element.

Further, in this embodiment, the storage unit 44 is
The abnormality message data and the operation procedure data by using the external registration device 500 are stored in advance, and the operation procedure data based on the operation of the operation switch groups 1 to 6 during the recovery operation after the occurrence of the unregistered abnormality is stored. It Therefore, when the unregistered abnormality occurs again, the operation procedure can be displayed on the display unit, and it can be expected that the operator is instructed to be guided.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a system to which an operation procedure instruction device according to an embodiment is applied.

FIG. 2 is a circuit diagram showing a connection state of operation switches of an operation panel, an operation procedure instruction device, and a programmable controller.

FIG. 3 is a circuit diagram showing a connection state between a programmable controller, an operation panel, and an operation procedure instruction device, for explaining respective corresponding operations of an indicator light on the operation panel and an operation procedure instruction device when an equipment abnormality occurs.

FIG. 4 is a configuration diagram of an operation procedure instruction device.

FIG. 5 is a configuration diagram of abnormal message data.

FIG. 6 is a configuration diagram of an abnormal message data storage unit.

FIG. 7 is a configuration diagram of operation switch data and indicator light data.

FIG. 8 is a configuration diagram of an operation procedure storage unit.

FIG. 9 is a flowchart showing the processing of the CPU.

FIG. 10 is a flowchart showing the processing of the same CPU.

FIG. 11 is a front view of a liquid crystal display.

FIG. 12 is a block diagram of the present invention.

[Explanation of symbols]

 100 Operation procedure instruction device 200 Programmable controller (PC) 300 Operation panel 400 Equipment 500 External registration device 1-6 Operation switch 30 Liquid crystal display (display unit) 31-37 Function keys (operation unit) 44 Data memory (storage unit) 45 CPU (Processing unit)

Claims (2)

[Claims] 1. An operation procedure instruction to be added to a system comprising equipment, a programmable controller for sequence-controlling the equipment, and an operation panel provided with an operation switch group for instructing the programmable controller of control contents. A device, which comprises an operation unit, a display unit, a storage unit, and a processing unit, wherein the storage unit is configured to prestore abnormal message data and operation procedure data due to the use of an external registration device, and the processing unit. When an abnormality is detected, the abnormality message data and the operation procedure data are read from the storage unit, the abnormality message and the operation procedure are displayed on the display unit, and the control contents are instructed to the programmable controller according to the instruction from the operation unit. An operating procedure instruction device having the following configuration. 2. The storage unit according to claim 1, wherein:
In addition to pre-storing the abnormality message data and the operation procedure data by using the external registration device, it is configured to store the operation procedure data based on the operation of the operation switch group during the recovery operation after the occurrence of the unregistered abnormality. Characteristic operation instruction device.