JPS5812051A - Control processing system - Google Patents

Abstract

PURPOSE:To eliminate a failure of one control table from affecting on the other control table, by connecting an occupancy request line and an occpancy permission line to a common priority circuit through a microprocessor respectively provided to a plurality of control tables. CONSTITUTION:A microprocessor MPU is built in control tables 21-2n and they are connected to a device to be controlled 1 via a data bus 6 with the MPU for the giving/receiving of data. Each control table is connected to the priority circuit 5 with occpancy request lines 71-7n and occupancy permission lines 81-8n mutually. The circuit 5 discriminates the priority with the occupancy request signal from each MPU through the use of the software for the interlocking of operation information and when the device 1 is occupied with a specific control table for a prescribed time or more, an alarm is generated. The MPUs are decentrarizingly located for each control table and the interlocking is constituted witb the software, allowing to avoid a failure of a control table from being affected on the other control tables.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a control processing method, in particular, a control processing system that uses a plurality of control consoles to
This invention relates to a control processing method when controlling two controlled devices.

Conventionally, when one control device is to be controlled by several control vehicles, the configuration shown in FIG. 1 has been adopted.

I control i1; for f11114m l [several control consoles 2
1 to 2n, and each operation signal 41 to 4n and control data are sent from each control console via a priority interlock circuit 3. Then, in the control circuit 31 in the priority interlock circuit 3, the priority is determined by operations 4Ii 4l-4n, and the gates 321 to 321& are opened in order from the control data with the highest priority to transfer the data to the controlled device 1. was.

On the other hand, when the operator operates, for example, the control console 21, the controlled device l is already on the control console 2! If the control console 21 is occupied by another vehicle C, a message indicating that it is being used by another vehicle C is displayed on the control console 21, and a wait is normally made until the control console 2n currently in use releases the occupation. there were.

Moreover, the inter-interconnect circuit usually has a complicated circuit configuration and consists of many parts, so the probability of failure is high, and the inter-interconnect control circuit 31 is unnecessary. If this happens, the control consoles 21 to 2m may become uncontrollable, causing the system to stop, and Operator 6: No matter how long he waits, he will not be able to control the interlock circuit. was difficult.

The present invention has been made with the aim of solving the above-mentioned problems, and common 1:9 interlock circuits are distributed on each control console *(': interlock circuit tso7txair C2). Therefore, the structure is designed to reduce the probability of component failure, so that even if one control vehicle fails, it will not affect the other control consoles.
It is an object of the present invention to provide a control processing method that can issue an alarm and notify an abnormality when an occupied state continues for a certain period of time or more.

An embodiment will be described below with reference to FIG. FIG. 2 is a schematic configuration diagram of an embodiment of the control processing method based on the present invention W14ζ2, I
Figure N3 is a configuration diagram of one embodiment of the priority circuit, FIG. 4 is a diagram showing a flowchart of an interlock tube in each control console C:, and FIG. 5 is a configuration diagram of another embodiment of the priority circuit.

In FIG. 2C, symbols 1.21 to 2n correspond to those in FIG. Each of the control consoles 21 to 2nt: has a combiator incorporated therein as shown in the figure. icroprocessor f11
The wrinkle control casting unit (MPU) is connected to the wrinkle control casting IC via the data bus 6, and data is exchanged.
is priority 1 road, and the lines between each controlled vehicle are occupancy requests J171-7n, occupancy acknowledge lines 81-8n and 6:
Therefore, a mutual connection is established.

FIG. 3 - The priority circuit will therefore be explained. 1lN3 books = 21~gn p 5 e 7''~7n and 8
1 to 8n correspond to Fig. 2.511 to 5111
is an IJ L/- provided on each control console, and when this is energized, contacts 531-53m, 561-56
n is closed, and contacts 541 to 54n are opened. Same 5
21 to 52n are relays installed on each control console, and when this is energized, contacts 551 to 55m and 57
1-57n are respectively closed. In the case of this embodiment, priority is set in the order of control vehicles 21 to 2n. That is, when the relay 511 is energized, the occupancy request line 71 of the control console 21 which has the highest priority, the contact 531 is closed and the power is connected, and the contact 541 is opened and the subsequent The circuits of the lower priority control consoles are disconnected.

When the relay 521 is energized, the contact 571 is closed in conjunction with the relay 521, and the occupancy acknowledge line 8
1 (- Therefore, occupancy permission is granted to the control console 21C.

Note that if the control console 21 occupies the controlled device l (-, check the excitation state of the relay 521 from C2 to see if the control console 2n, which is lower in priority, is already occupying the controlled device l). To check.

When the above-mentioned occupancy permission is granted, data processing is started, but after the processing is completed, the relay 511 is demagnetized and returned to its original state.

In this case, since the contact s41 is closed, the operation of the lower priority control console becomes possible. That is, the control console 21 is occupied ζ;control console 2n&: Therefore, it will not be occupied.

When the control vehicles 21 and 211 simultaneously issue occupancy requests to a pair of priority circuits 51, each relay 511, 51m
.

521, 52m operation timing C2, control console 2
9th and 4th to prevent 1 and 2n from being occupied simultaneously by C2
As shown by the chart on the left in the figure, after confirming the occupancy request at C, confirmation of acceptance of the occupancy request is made again after a certain period of time r. That is, in the flowchart, once the occupancy requests from both parties are accepted, and after a certain delay time, the reception is rechecked to clarify the priority order, and then only the control console with the higher priority is processed. It has been done.

Next C: Alarm output 6; will be explained. @3 diagrams (
: Narufukuma Timer 91. h is an on-delay timer; for example, when the control table n is occupied, contacts 55m and 5G are both closed, and the timer 9n is excited.

Then, when the set time has elapsed, the timer 9a
is energized and outputs an alarm output to the outside. Each control console there! 1-2m is before the timer 91.9m operates 6; If the occupancy of the controlled device 1 is completed,
It becomes possible to detect an abnormal state of occupancy due to a failure of the relay 51n, etc. of the control console.

In addition, in case 1; when the power of control vehicle 3n is lost, relay 5
Since the current that excites 1n is supplied from the second base of the control console, the relay 51a is not energized, and this is the same state as when no occupancy request is issued. do not have.

FIG. 5 shows another embodiment of the priority circuit. In this embodiment, only the control console 1 is shown, and the other control consoles 1A and 1A are also of similar construction. References 21, 511, t21, 531, 541 in aa,
551.

SIX, 871 I, respectively, correspond to FIG. 3, but in this embodiment, the relay 521 shown in FIG. 3 and the relay C; responsive contacts 551, 571
The relationship with the photo night pla (; has been replaced with t.

As explained above, according to the present invention, the interlock circuit provided in common C2 is distributed and arranged in each control console C;
Software C: Therefore, since an interlock is configured, it goes without saying that false interlocks due to deterioration of parts can be stopped, and even if the control console malfunctions due to power loss etc., other consoles can be l without any influence on
! t: Timed timer (-

[Brief explanation of the drawing]

Chapter XI! II shows a control method in which a plurality of control consoles control a controlled device according to the conventional method; FIG.
Figure 11g4 shows the configuration of one embodiment of the priority circuit, Figure 11g4 shows the interlock for each controlled vehicle in seven diagrams, and Figure 11g4 shows the configuration of an embodiment of the priority circuit. 1-m-controlled device, 2l-2n--control console, 3-m-priority interlock circuit, 41-axis-m-
Operation signal, 321~32m---Gate, 31-
--control circuit, 5-m-priority circuit,
6--Data path, 71-7m--1 occupancy request line, 81-811--1 occupancy permission line, 2nd map of Unin axis, 2nd map, 4th map.

Claims (1)

[Claims] (1) Multiple control consoles (6) to control controlled devices (9) in common
2. Control processing method controlled according to priority order (
; and the above-mentioned control vehicle C; respectively! Iku four process setti
Each miter has four processors;
The control processing method is characterized in that the priority circuit 1 is connected through the occupancy permission, and the priority circuit receives an occupancy request signal from the command processor and interlocks the operation information using software. (Mai common C- Created 9 controlled devices with priority order by multiple control consoles (; In the control console method that is controlled by each other, each of the above control consoles C; creates an Ikupro dragon tuna device. A priority circuit having a timer circuit and an alarm device is connected through the occupancy request-1 occupancy permission alt, and the priority circuit receives occupancy request signals from each microprocessor device using software. 2. A control processing method characterized in that an alarm is issued when a controlled device is occupied by a specific control console for a certain period of time or more.