JP2511172B2 - Supervisory control method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supervisory control method in a remote supervisory control device, and more particularly to a supervisory control method suitable for performing macro display and macro control in a controlled place.

[Prior Art] A remote monitoring and control device for a system such as an electric power system is used for monitoring and controlling the condition of a device at a distant controlled place, for example, monitoring the operating condition of a circuit breaker or a protective relay, and switching on / off of a circuit breaker. When performing this monitoring and control, the control pattern according to the purpose, that is, the data to be monitored, the device to be controlled, the control content (whether it is on or off, etc.), and those monitoring, The control order is fixed. Therefore, as shown in Japanese Patent Publication No. 61-9797,
The target device to be monitored and controlled and the control procedure are stored in advance in a ROM (read-only memory) as a command sequence for the microprocessor for each control pattern assumed in advance, and this is read by the microprocessor when necessary. If you monitor and control by executing,
The burden on the operator can be reduced and efficient operation can be performed.

[Problems to be Solved by the Invention] In a system that is a supervisory control measure for a distant supervisory controller, equipment is often added, changed, or removed.
In such a case, the control pattern must be changed or a new control pattern must be added. Further, even if the system is not upgraded or abolished, the control pattern needs to be changed or added when the monitoring control content needs to be changed. However, the above-mentioned method using the ROM has a problem in that it is necessary to replace the ROM itself in order to change or add a control pattern, and it is not possible to flexibly cope with the situation online.

An object of the present invention is to provide a supervisory control method capable of easily changing and adding a control pattern in accordance with a system change or supervisory control content change in an online state.

[Means for Solving the Problems] The monitoring control method of the present invention provides a readable and writable memory RAM and each device of the controlled station side device to each of the controlled station side devices of the distant monitoring control device. A processing means for executing a command for monitoring and controlling is provided, and a control pattern consisting of the above-mentioned command sequence and its control pattern number are input by the input means provided in the control side device of the remote monitoring control device. , The control pattern consisting of a series of input commands and its control pattern number are transmitted from the control station side device to the controlled station side device and set in the RAM, and when the supervisory control is executed, the control station side device controls the above The pattern number is transmitted to the controlled station side device, and the controlled station side device sequentially reads out a series of commands corresponding to the transmitted control pattern number from the RAM and outputs one command. It is characterized in that a plurality of commands are executed by the processing means by designating the control pattern number.

[Operation] According to the present invention, the control pattern consisting of the command sequence and its control pattern number are transmitted from the control station side device to the controlled station side device and set in the RAM, so that the control pattern number is controlled by the control station side device. A control pattern consisting of a command sequence can be executed simply by specifying. In addition, since the control pattern set in the RAM of the controlled station side device and its control pattern number can be easily set and changed online from the control side apparatus, system change,
It is possible to flexibly respond to changes in monitoring control contents.

[Examples] Hereinafter, the present invention will be described with reference to Examples. FIG. 1 shows a configuration example of a remote monitoring control device to which the method of the present invention is applied. The control center device has a common bus 2 of an arithmetic processing unit (CPU) 1, a ROM 3 for storing a processing procedure, a modulation / demodulation circuit ( MODEM)
5, a serial input / output circuit (I / O) 4 for connecting 5 and a data input / output device connecting circuit (I / O) 6 for connecting a data input / output device (T) 7 are connected. The controlled station device is connected to the common bus 9 of the arithmetic processing unit (CPU) 8,
A ROM 10 for storing a processing procedure, a RAM 16 as a feature of the present invention for storing a supervisory control procedure from a control station, and a serial input / output circuit (I / O) 1 for connecting a modulation / demodulation circuit (MODEM) 15
4, control output circuit (OUT) 11, status signal input circuit (IN) 1
2 and the analog signal input circuit (AIN) 13 are connected.

FIG. 2 (a) shows the structure of a command sequence for each control pattern, which can be regarded as one macroinstruction, a control pattern number indicating the distinction of control patterns, and monitoring / control position data indicating individual monitoring control information. And monitoring / control content data and an end code indicating the end of the data. If only monitoring is specified for each monitoring / control position and control is not specified, setting data for macro display (displaying the status of system equipment on the display means on the controlled site side, but not controlling) ), The control data (interrupter ON / OFF, etc.) is included in the macro control setting data with interlock.

When setting the setting data in the RAM 16 of the controlled station, the data below the control pattern number in FIG. 2 (a) is sequentially input from the data input / output device 7. Then, the arithmetic processing unit 1 takes in this input data according to the processing procedure stored in the ROM 3, and passes through the serial input / output circuit 4, the modulation / demodulation circuit 5, the transmission circuit 17, the modulation / demodulation circuit 15 and the serial input / output circuit 14 of the controlled place. Then, it is taken into the arithmetic processing unit 8 that operates according to the processing procedure stored in the ROM 10, and is stored in the RAM 16 from here.

At this time, the setting data is stored in the RAM 16 in the configuration shown in FIG. That is, when the number of control patterns that have been input is N and the numbers are 1 to N, the control pattern number is stored in the control pattern table together with the address determined corresponding to the number, and the command sequence other than the control pattern number is stored. The monitoring control procedure consisting of is stored in a continuous area with the above address corresponding to the control pattern number as the start address.

According to such a setting method, since the RAM can be rewritten online from the control station, it is easy to change, add or delete the control pattern.

Next, the operation at the time of execution of supervisory control will be described. Fig. 2 (b)
Indicates execution data (macro instruction) input from the input / output device 7 of the control station at the time of execution, and is composed of a control pattern number to be executed and an execution code for giving an execution command. This execution data is taken into the arithmetic processing unit 8 of the controlled station through the same route as the setting data described above. The arithmetic processing unit 8 first retrieves the control pattern number in the execution data according to the program in the ROM 10, reads the storage address on the RAM 16 of the corresponding supervisory control procedure by referring to the control pattern table, and then the supervisory control information from that address. Are sequentially read and executed one by one. At this time, if the read monitoring control information is monitoring, a status signal is fetched from the monitoring position data from the corresponding input terminal Ii of the corresponding status signal input circuit 12 in FIG. 1 and matches the monitoring content data (for example, ON). If so, the next monitor control information is fetched.
When the read supervisory control information is control, control content data (for example, ON) is output from the control position data to the corresponding output terminal Oi of the corresponding control output circuit 11. In this way, the arithmetic processing unit 8 executes the supervisory control procedure until the end code is read. When the monitoring contents do not match, the arithmetic processing unit 8 interrupts the processing at that time and reports an abnormality to the control center device.

The RAM itself is a volatile memory, and its contents are lost when the power is turned off. Therefore, if a magnetic recording means is used as a backup when the power is turned off and the contents are automatically set in the RAM when the power is turned on, or if a holding power supply is provided in the RAM itself to make it a non-volatile memory. , When the power is turned on, the previous setting data can be used as it is.

[Effects of the Invention] According to the present invention, a series of commands can be executed only by designating a control pattern number in the control center side device, so that it becomes possible to easily execute monitoring control. Also, since the control pattern set in the RAM of the controlled station device and its control pattern number can be easily set and changed online from the controlled station device, it is possible to change the system and monitoring control contents of the controlled station. It becomes possible to respond flexibly. Also, since the control station side device is provided with an input means for setting the RAM of the controlled station side device,
The effect is that the control pattern can be set and changed without going to the controlled site.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a remote monitoring control device to which the method of the present invention is applied, FIG. 2 is a diagram showing a configuration of setting data and execution data for setting a control pattern, and FIG. 3 is a RAM of the setting data. It is a figure which shows the storing method in. 1,8 ... Arithmetic processing unit, 3 ... ROM, 7 ... Data input / output unit, 10 ... ROM, 16 ... RAM.

Claims (1)

(57) [Claims] 1. A RAM as a readable / writable memory and a command for monitoring and controlling each device of the controlled station side device for each of the controlled station side devices of the remote monitoring and control apparatus. The control pattern including the command sequence and the control pattern number are input by the input unit provided in the control station side device of the remote monitoring control device, and the control pattern including the input command sequence and The control pattern number is transmitted from the control station side device to the controlled station side device and set in the RAM.When the supervisory control is executed, the control station side device transmits the control pattern number to the controlled station side device. At the controlled station side device, a sequence of commands corresponding to the transmitted control pattern number is sequentially read from the RAM, and a plurality of commands are designated by designating one control pattern number. Monitoring control method characterized by executing a command by said processing means.