JPH0379434A - Sequence display - Google Patents

Abstract

PURPOSE:To facilitate clearance of the reason for generation of jamming by displaying progressing condition and jamming generating condition of sequence on a display part, extracting the sequence of jamming spot upon generation of jamming, and displaying the working condition of sequence. CONSTITUTION:An order squence part 1 is provided for generating an indicating signal of working condition of a sequence device (monitor signal), based on signals from the sequence device, and an approximate symbol display signal S1 or a detailed symbol display signal S2 is output from an order processing part 2 based on the monitor signal. A jamming detecting sequence part 4 is provided for detecting jamming of the sequence device, based on the output a display signal S4 is output from a condition processing part 5, and supplied to a condition display part 3 together with a signal S3. Further, a jamming spot detecting sequence part 6 to extract the jamming spot following to the signal from the sequence device is provided, based on the output a display signal S6 is output from a jamming spot processing part 7, and supplied to a jamming spot display part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a sequence display device suitable for monitoring the progress of a sequence device and the occurrence of traffic jams.

(Prior Art) Many sequence systems use a sequence display device to display the progress of the sequence device and the occurrence of traffic jams.

FIG. 5 is a block diagram showing an example of such a sequence display device.

In the figure, the sequence display device 60 includes an input section 61 that receives a signal from the sequence device 50, and an input section 61 that receives a signal from the sequence device 50.
sequence device 5 based on the signal captured by 1.
The vehicle is equipped with a processing section 62 that detects the progress state of 0 and the occurrence of traffic congestion, and a display section 63 that displays the output of this processing section 62.

When this sequence display device 60 is turned on, the sequence device 5 is
A signal related to the operating status of 0 is taken in, and this signal is processed by the processing unit 62. Then, as shown in FIG. 6, in the sequence device 50, a block lamp 64 corresponding to the sequence currently being processed is lit.

Furthermore, when a sensor or the like in the sequence device 50 fails and the flow of the sequence stops (when a traffic jam occurs), the block lamp 64 corresponding to the congested area is displayed blinking, and an alarm (not shown) is displayed. (omitted) will notify you if a traffic jam has occurred.

(Problem to be Solved by the Invention) However, in such conventional sequence display devices, the sequential sequence is divided into blocks to display the progress status of the sequence, the occurrence of traffic jams, etc. The status could only be known in block units.

For this reason, when a traffic jam occurs, it often takes too much time and effort to investigate the cause.
There was a problem in that the restoration work took time and it was difficult to start up the sequence device quickly and reliably.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a sequence display device that facilitates investigation of the cause of traffic jams and enables early recovery of the sequence device.

[Purpose of the invention]

(Means for Solving the Problems) The present invention displays the status of a sequence device on a display unit, in which the operation status of the sequence device, traffic congestion,
and a detection unit that detects each traffic jam location, and displays a plurality of blocks corresponding to the sequence on the display unit, and changes the display state of the block during sequence execution from others based on the signal that detects the operation state. a traffic jam processing unit that displays a display state of a block corresponding to a traffic jam sequence based on the traffic signal that detected the traffic jam, distinguishing it from a display status that is currently being executed; and a traffic congestion location processing unit that displays the sequence of traffic congestion occurrence locations on the display unit in the form of a ladder diagram based on the traffic congestion occurrence location, and displays the symbol by changing its display color in accordance with the operation or non-operation of each element at the time of occurrence of traffic congestion. It is characterized by:

(Function) In this invention, a plurality of blocks corresponding to a sequence are displayed on the display section, and the display state of the block that is currently being executed is displayed differently from other blocks, so that when a traffic jam occurs, it is possible to respond to the traffic jam sequence. In addition to displaying the display state of blocks separately from the display state in progress, the sequence of traffic jam locations is displayed in a ladder diagram, and symbols are displayed to indicate the operation or inaction of each element when traffic congestion occurs. Since the display color is changed, the operating status of the sequence, traffic jams, and locations of traffic jams can be clearly seen at a glance.

(Example) FIG. 1 is a block diagram showing one embodiment of the present invention.

The sequence display device shown in this figure mainly includes an order sequence section 1, an order processing section 2, a status display section 3, a traffic jam detection sequence section 4, a traffic jam processing section 5, a traffic jam location detection sequence section 6, and a traffic jam location processing section 7. , a traffic jam location display section 8, a traffic jam alarm output section 9, and an alarm WIO. Then, the operating status and traffic jam status of the sequence device (not shown) are detected and displayed on the status display unit 3 using major classification symbols and detailed symbols. While changing the display state of the symbol, detecting the location where the traffic jam has occurred and displaying it on the traffic jam location display section 8, at the same time, the alarm 10 notifies you of the traffic jam.

Among the above-mentioned components, the sequence unit 1 generates a signal (operating state monitor signal) indicating the operating state of the sequencing device based on a signal from the sequencing device,
This is sent to the sequential processing section 2.

When the operation status monitor signal is output from the order sequence unit 1, the sequence processing unit 2 outputs the signal to the status signal human power unit 11 that receives the signal and to the operation status monitor No. 16 that receives the status signal human power unit 11. a status display output unit 12 that detects the currently executed sequence based on the sequence and generates a general symbol display signal S1 and a detailed symbol display signal S2;
It is equipped with When the operating state monitor signal is output from the sequence section 1, it is taken in and supplied to the state display section 3 as a general symbol display signal S1 and a detailed symbol display signal S2.

Further, the traffic jam detection sequence unit 4 detects traffic jams in the Silkens device based on signals from the sequence device,
A traffic jam detection signal S3 is generated and supplied to the traffic jam processing section 5 and the traffic jam alarm output section 9.

When the traffic jam signal is output from the traffic jam detection sequence unit 4, the traffic jam processing unit 5 uses a traffic jam signal input unit 13 that receives the traffic congestion signal, and based on the traffic congestion detection signal S3 that is received by the traffic congestion signal input unit 13, It is equipped with a traffic jam display output unit 14 that generates a traffic jam sequence display signal S4 indicating the sequence in which the traffic jam has occurred, and when the sequence device is in a traffic jam,
A traffic jam sequence display signal S4 is supplied to the status display unit 3.

The status display section 3 is equipped with a display such as a CRT, and displays the information shown in FIG. The general display screen 15 shown in FIG. 2 and the detailed screen 16 shown in FIG. 2(b) are created and displayed.

The summary display screen 15 shown in FIG. 2(a) includes a sequence name display area 17 for displaying the name of the sequence currently designated for display among the sequences executed by the sequence device, and a A group number display area 18 for displaying the number of the group corresponding to the sequence name displayed in the sequence name display area 17, and a group number display area 18 for displaying the number of the group corresponding to the sequence name displayed in the sequence name display area 17, and the number of the sequence specified by the number displayed in each of these group number display areas 18. A plurality of large block display areas 19 that roughly display the progress status and traffic congestion situation, and a plurality of small block display areas 20 that display the progress status of the sequence, traffic congestion situation, etc. in more detail than the large block display area 19. We are prepared.

Further, the details screen 16 shown in FIG. 2(b) includes a group name area 21 for displaying the number and name of the group specified for display, and a group name area 21 for displaying the numbers of the items constituting this group. item number display area 22,
It also includes an item name area 23 for displaying names corresponding to the numbers displayed in each item number display area 22.

When the sequence device is causing a traffic jam, the traffic jam location detection sequence unit 6 extracts a signal that corresponds to the location where the traffic jam occurs from each signal output from the sequence device, and sends this signal to the traffic congestion location processing unit 7 as a signal S5. supply

When the traffic congestion area detection signal S5 is output from the traffic congestion area detection sequence unit 6, the traffic congestion area processing unit 7 inputs the traffic congestion area/new input unit 24 which receives the signal S5, and the signal input by this traffic congestion area input unit 24. It is equipped with a traffic jam area output unit 25 that detects a traffic jam area based on S5 and generates a traffic congestion area display signal S6, and supplies the traffic congestion area display number IA S6 to the traffic congestion area display unit 8 when the sequence device is in a traffic jam. .

The traffic jam area display unit 8 is equipped with a display device such as a CRT, and receives the traffic congestion area display signal S output from the traffic congestion area processing unit 7.
6, a traffic jam location display screen 26 shown in FIG. 3 is created and displayed.

This traffic jam location display screen 26 includes an item name display area 27 for displaying the item number and name of the sequence where the traffic jam is occurring, and the corresponding sequence of the part related to the traffic jam using a ladder program method. A sequence area 28, an a contact symbol 29 and a b contact symbol 3 as sequence symbols constituting the sequence.
0, a coil symbol 31, an instrument number 32 attached to these, and a power supply line 33 connecting both ends of the sequence.

Further, when a traffic jam detection signal is output from the traffic jam signal human power unit 13, the traffic jam alarm output unit 9 receives the traffic jam detection signal and generates a drive signal S7, and also supplies this drive signal S7 to the alarm device 10 to generate an alarm. emanate (1. urge.

The operation of this embodiment configured as described above is illustrated in FIG.
) will be explained with reference to the flowchart shown in FIG. 4(b).

First, when power is applied to this sequence display device and it is turned on, each part of this sequence display device is initialized and the monitoring operation of the sequence device is started.

In this monitoring operation, first, as shown in the flowchart of FIG. 4(a), the order processing section 2 displays the outline display screen 15 shown in FIG. 2(a) on the status display section 3, and also Among the number display areas 18, those corresponding to the selected group are displayed in red (step 101).

Thereafter, the order processing section 2 causes the status display section 3 to display the detailed screen 16 of the group designated in red on the summary display screen 15 (step 102). Note that at this time, the group name area 21 on the details screen 16 is displayed in red.

Next, after each signal output from the sequential sequence unit 1, the traffic jam detection sequence unit 4, and the sequence device for detecting the traffic congestion area is captured (step 103), the sequence processing unit 2, the traffic congestion processing unit, etc. detect the traffic congestion area. The processing unit 7 determines whether the sequence device is operating normally (
Step 104).

And if this sequence device is working properly,
The sequence processing unit 2 detects the sequence currently being processed, and causes the large block display area 19 corresponding to the sequence on the summary display screen 15 displayed on the status display unit 3 to blink. At the same time, the small block display area 20 corresponding to the sequence is displayed in green (step 105).

In addition, in parallel with this display operation, the order processing unit 2 displays a green detailed screen 16 on the summary display screen 15 among each item number display area 22 and each item name area 23 displayed on the detailed screen 16. The block corresponding to the displayed small block display area 20 is displayed in green (step 10).
6).

After this, the sequence processing unit 2 checks whether the sequence currently being executed in the sequence device is within the range of one large block display area that is currently blinking 7, and if it is within the range. , the process returns to step 103, and the two consecutive operations are repeated (step 107).

In the sequence device, when the sequence currently being executed comes out of the range of the large block display area 19 that is currently blinking, the sequence processing unit 2 moves the large block display area 19 that has been blinking until then. At the same time, the next large block display area starts blinking, and then the process returns to step 103 (step 108).

Furthermore, if a traffic jam occurs in the sequence device during the above-described operation, the traffic jam processing unit 5 makes the traffic congestion difficult (step 104), stops the blinking operation of the large block display area 19 that had been driven to blink, and , the small block display area 20 corresponding to the congested sequence flashes in orange (step 109).

In addition, in parallel with this operation, the traffic congestion processing unit 5 causes each item number display area 22 and each item name area 23, which were previously displayed in green, to blink in orange (step 110). .

At this time, the traffic jam alarm output unit 9 detects this, activates the alarm 10, and notifies an attendant or the like.

In addition, in parallel with the above-mentioned operation, when a traffic jam occurs in the sequence device, the output of the sequence device is taken in via the traffic jam location detection sequence unit 6 as shown in the flowchart of FIG. 4(b). The traffic jam location processing unit 7 detects this (step 111).

After this, the traffic jam location processing unit 7 detects the traffic jam location based on the signal S5 output from the traffic congestion location detection in step 11.
2) Based on this detection result, the traffic congestion area display screen 26 is displayed on the traffic congestion area display section 8 (step 112).

On this traffic jam location display screen 26, a sequence corresponding to a traffic jam location is displayed in a ladder program format, and contact points and symbols are expressed on the sequence.

When a sequence jam occurs, the contacts, coils, and symbols displayed on the sequence are displayed in different colors to indicate the state at the time the condition occurred, such as red if the condition is in operation or green if it is in the inoperative condition. (step 114).

Thus, according to this embodiment, the progress status of the sequence device, the occurrence of traffic jams, etc. can be displayed in the large block display area 1.
9 and a small block display area 20, when a traffic jam occurs, it is possible to roughly inform the attendant of the cause of the traffic jam, and at the same time inform the staff in detail.

Furthermore, when a traffic jam occurs in the sequence device, the sequence corresponding to the location where the traffic jam occurs is extracted and displayed on the traffic jam location display section 8, so that the location of the traffic jam can be immediately investigated and investigated. , this sequencer can be restored quickly.

In the above embodiment, the status display section 3 is constructed of a CRT, but the status display section 3 may be constructed using a lamp, an LED (light emitting diode), or the like instead of the CRT.

〔Effect of the invention〕

As is clear from the above explanation, according to this invention,
In addition to displaying the progress status of the sequence and the status of traffic jams on the display, the sequence of the traffic jam location at the time of traffic congestion is extracted and the operating status of that sequence is also displayed, making it easier to investigate the cause of traffic jams. This has the effect of facilitating the process and also enabling early recovery of the sequence.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIGS. 2(a), 2(b) and 3 are display screen examples for explaining the operation of the embodiment, and FIG. 4 is a block diagram showing an embodiment of the present invention. 4(a) and 4(b) are flowcharts for explaining the operation of the same embodiment, FIG. 5 is a block diagram showing the configuration of a conventional sequence display device, and FIG. 6 is a flowchart for explaining the operation of the same device. This is an example of a display screen for 1...Order sequence section, 2...Order processing section, 3.
...Status display section, 4...Congestion detection sequence section, 5.
...Congestion processing unit, 6...Congestion point detection sequence unit,
7... Congestion point processing section, 8... Congestion point display section, 9
...Congestion alarm output section, 10...Alarm.

Claims (1)

[Claims] A sequence device that displays the status on a display unit, comprising: a detection unit that detects the operating status of the sequence device, traffic jams, and traffic jam locations, and displays a plurality of blocks corresponding to the sequence on the display unit; , an order processing unit that changes the display state of the block in sequence execution from other blocks based on the signal that detects the operating state, and displays the display state of the block corresponding to the traffic jam sequence based on the signal that detects the traffic jam. A traffic congestion processing unit that displays a display state separately from the display state in progress; a sequence of traffic congestion locations is displayed on the display unit in the form of a ladder diagram based on a signal that detects the traffic congestion location; and the operation of each element when traffic congestion occurs. 1. A sequence display device comprising: a traffic jam location processing unit that displays a symbol by changing its display color in response to non-operation.