JPH0793748B2 - Interlocking control system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a so-called interlocking control system capable of simultaneously operating a plurality of control devices by one operation.

<Technical Background of the Invention and Problems Thereof> A control system for operating a plurality of control devices is shown in FIG. That is, each control unit 3 (3
.. are mutually transmitted by the group controllers 4 (4a, 4b ...) Through the communication line 1. In the illustrated example, the group controller 4a issues a command to the control unit (3a, 3b, 3c) of the address recorded by itself, and the group controller 4b similarly issues a command to the control units 3d, 3e .... The control unit 3 has an address number setter 6 for setting its own address number and an operation switch 7 for executing an operation as shown in FIG.
, A communication circuit 8 for transmitting and transmitting information from the communication line 1, a control target 9 for performing various operations according to operation commands input from the operation switch 7 and the communication line 1, and further all of the above-mentioned inputs and outputs. Microcomputer to control (MP
U) 10 and. As shown in FIG. 8, the group controller 4 is provided with an operation switch 7, a communication circuit 8, and a microcomputer (MPU) 10. In addition to this, an address for recording the address of the control unit belonging to its own group. A number recording circuit 11 and a key switch 12 for recording the address of the control unit in the address number recording circuit 11 are provided.

In the conventional control system having the above configuration, each address control unit 3 (3a, 3b ...) Is set to a predetermined address by the address number setting unit 6. Further, the group controller 4 (4a, 4b ...) Records all the address numbers of the control units (3a, 3b, 3c in the case of the group controller 4a) belonging to its own group by the key switch 12. That is, the addresses of the control units 3a, 3b, 3c are registered and recorded in the group controller 4a, and the addresses of the control units 3d, 3e ... Are similarly registered in the group controller 4b.

When the operation switch 7 of the controller 4a of the group is operated, the group controller 4a itself sends a control command corresponding to the operation of the operation switch 7 to the control unit (3a, 3b, 3c) of the address recorded by itself. The signal is transmitted via the internal communication circuit 8. Control unit 3a, 3b, 3c
Receives the above control command and performs a predetermined operation. Similarly, the control units 3d, 3e ... Also perform a predetermined operation according to the control command of the group controller 4b.

On the other hand, when each control unit 3a, 3b ... Is operated independently, each operation may be executed by the operation switch 7 provided in each control unit 3a, 3b.

As described above, in the conventional control system, since the group controller 4 controls a predetermined number of control units, the control unit and the like require separate group controllers. Further, it is necessary to register and set each address of the control unit controlled by the group controller in each group controller, and in either case, the device itself becomes large and the operation becomes complicated.

<Objects of the Invention> The present invention has been made in view of the above-mentioned problems of the conventional control system, and does not require a separate group controller, and therefore does not require the trouble of recording and setting the address number of each control unit. An interlocking control system is provided.

<Outline of the Invention> In order to achieve the above-mentioned object, the present invention provides a group number setting device and an interlocking key based on each control unit, and provides an arbitrary control unit and another control unit of the same group. By providing an operation switch for operating at the same time or operating independently, the same operation command is simultaneously transmitted from any control unit to other control units in the same group, and the above-mentioned control unit also operates. It is characterized in that it can operate independently.

<Embodiment of the Invention> FIG. 1 is a schematic view of an interlocking control system of the present invention. This interlocking control system comprises a communication line 1 and control units 2 (2a, 2b ...) Connected to the communication line 1, respectively. FIG. 2 is a schematic diagram of the configuration of the control unit in this interlocking control system. The control unit 2 is provided with an operation switch 7 for executing control operation, transmission of information from the communication line 1,
A communication circuit 8 for transmitting, a control target 9 for performing various operations according to operation commands from the operation switch 7 and the communication line 8, a microcomputer (MPU) 10 for controlling all inputs and outputs, and further each control Unit 2
The group number setting device 13 for setting the number of the group to which the user belongs, the interlocking key 14 and the display device 15. The interlocking key 14 is a interlocking key for switching a control command from the operation switch 7 to a command (interlocking command) to the other control unit 2 to which it belongs and a key that operates by itself.

Indicator 15
Is displayed. Further, FIG. 3 shows an operation command format which each control unit 2 sends to another control unit of the same group. As shown in the figure, the operation instruction is mainly composed of a group number of 4 bits and control data of 4 bits. This group number has its own group number setter 13
The group number set in is added. Control data is input to the control data corresponding to each operation switch 7.

The operation of the interlocking control system having the above configuration will be described.

FIG. 4 shows an operation flow of each control unit. Further, FIG. 5 shows an operation flow when each control unit receives a control command.

That is, when the operation switch 7 or the interlocking key 14 of each control unit 2 is operated, as shown in FIG.
Therefore, it is first determined whether the key is the interlocking key. If it is the interlocking key (YES), it is reversed to the current control mode (interlocking mode or single mode), and the display 15 is turned on or off according to the switched control mode. Then, it waits for the next operation input.

Next, if there is an operation input, it is again determined whether or not it is the interlocking key, and if it is not the interlocking key (NO), it is determined whether or not the current mode is the interlocking control. At this time, if interlocking control is performed (interlocking mode YES), an operation command is transmitted from the communication line 1 according to the operation command format shown in FIG. The control unit itself also performs the control operation independently.

If the current mode is independent control (interlocking mode NO), no operation command is transmitted to the communication line 1, and only that control system performs its own independent control operation.

On the other hand, in the other control unit 2, the communication line 1
When the command data transmitted from the device is received, it is processed according to the operation flow of FIG.

In FIG. 5, each control unit 2 processes the operation command and then checks the group number. If it is the group number to which it belongs (NO), it does not follow this operation command. If the group number concerned matches the group number to which it belongs, the control data of the received operation command is decoded, and the control processing operation is performed corresponding to this data.

The above operation will be described in more detail with reference to FIG. 1. When the control units 2a, 2b, 2c are set to the first group,
Set e and 2f to the second group. And the control unit 2a
Operate the interlocking key 14 of to turn on the display 15 in the interlocking mode. When the operation switch 7 is subsequently operated, the control units 2a, 2b, 2c are simultaneously operated, that is, interlocked with each other in response to the operation of the operation switch 7.

<Effect of the Invention> As described above, in the interlocking control system of the present invention, the group number setter and the interlocking key, and further the display, are provided in each control unit in place of the conventional address number setter. As described above, the group controller is not required, and accordingly, the address registration to the group controller is not required. Therefore, the interlocking control system itself can be downsized, which can contribute to cost reduction. The operation is also extremely simple.

[Brief description of drawings]

FIG. 1 is a block diagram of an interlocking control system of the present invention, FIG. 2 is an internal block diagram of a control unit, FIG. 3 is a format of an operation command, and FIGS. 4 and 5 are flow charts of the control unit. FIG. 6 is a conventional control system configuration diagram, FIG. 7 is an internal configuration diagram of a conventional control unit, and FIG. 8 is an internal configuration diagram of a conventional group controller. In the figure, 1 is a communication line, 2 is a control unit, 7 is an operation switch, 8 is a communication circuit, 9 is a control target, 10 is a microcomputer, 13 is a group number setting device, 14 is an interlocking key, and 15 is a display device. Is.

Claims (1)

[Claims] 1. A means for grouping each of them, a communication circuit means for receiving and transmitting communication from a communication line, a control object which operates according to an operation command from the communication line, and an operation of this control object. In the interlocking control system, a plurality of control units each including an operation key are connected by the communication line, and a control command can be transmitted only to control units of the plurality of control units which are divided into the same group. Each control unit is provided with a group number setting device and an interlocking key, and is provided with an operation switch for operating any control unit and other control units in the same group at the same time or independently. The same operation command is simultaneously sent from the control unit to other control units in the same group. Along with this, an interlocking control system characterized in that any of the above control units can also operate independently.