JPH01228238A - Control response system in supervisory and controlling equipment - Google Patents

Abstract

PURPOSE:To accelerate a control response by returning the monitor data of its own station to a master station after a prescribed time on completing a control operation by a slave station receiving a control instruction in a control response system in a polling type monitor controller. CONSTITUTION:The slave station 21 receiving an instruction to change the state of the station by the control instruction from the master station 1 performs the control operation corresponding to the control instruction. And after completing the control operation, and after the lapse of the prescribed time, the slave station returns the monitor data DATA1 (ANS) of its own station to the master station 1 as a response signal for the above control instruction. By performing such operation, since the master station 1 can recognize state data after the control of the slave station 21 to which the control instruction is issued immediately without waiting until the next polling time, the state of the slave station 21 can be recognized rapidly.

Description

[Detailed Description of the Invention] [Summary] A control command in which the master station 1 sequentially transmits a monitoring command p to a plurality of slave stations 21 and 2n, and orders a specific slave station 21 to change its station status as necessary. Regarding a polling type supervisory control device that transmits C and receives its own monitoring information from multiple slave stations as a response signal, after the status of the slave station 21 is changed when the master station 1 commands the station status to be changed. For the purpose of knowing the station status data within a short time, the slave station 21 that has been ordered to change the station status is sent its own monitoring data DATA I (ANS ) as a response signal to the master station 1, and then the master station 1 transmits a monitoring command pn to the next slave station 2n.

[Industrial application field]

The present invention relates to a method of responding by a supervisory controller of a slave station to a control command from a supervisory controller of a master station in a polling type supervisory controller.

[Conventional technology]

The control response method in the conventional polling type supervisory control device has a configuration as shown in the block diagram of FIG.
The monitoring signal p is sequentially sent to multiple slave stations 21B, 22G,
2nN, and sends a control signal C to a specific slave station as necessary.
is sent to change the state of the station, and the plurality of slave stations send the monitoring data D of their own station at the time they received it to the master station, and when the transmission of the data is finished, the signal ANS is sent to end the monitoring. That is, as shown in the signal arrangement diagram of FIG. 5, first, the master station IA sends a monitoring command pt for polling to the slave station 21B, and the slave station 21B receives the command p1 and transmits its own monitoring data D1. All data are sent together to the master station IA, and when the process is completed, a completion response signal ANS is sent.

Next, the same monitoring command p2 and monitoring data D2 are transmitted and received to and from the slave station 22C. Then, during the time period C when the slave station 22C is transmitting the response signal ANS, the master station IA transmits the response signal to the slave station 2.
When the control command C1 for 1B is sent, the slave station 21B
When it receives the control command C1, it performs the commanded control operation, and after a certain amount of time has elapsed, it transmits a response signal (A) for the control to the master station 18.

Then, the slave stations 23D and 2nN are polled again, the master station IA sends a monitoring command, and the slave station 2nN sends the monitoring data and sends a response signal ANS indicating completion of one cycle to all the slave stations. End polling monitoring.

[Problem to be solved by the invention]

The response method for monitoring and control in conventional monitoring and control equipment is
This is done as described above, but from the master station IA to the specific slave station 21B
When the slave station 21B receives the control command C1 and sends the response signal (A) when the slave station 21B sends the control command CI to If the time from the end of the control operation until the state of the own station changes is equal to or greater than the time a, the above response signal (
It is possible to send the status data of the slave station 21B after control without delay in A), but if the above time is shorter than time a, it is impossible to send the control response signal (A) above. This makes it possible to report the station data to the master station IA after the status change of the slave station 21B at the time of polling in the next cycle.
That is, the process is performed using the response signal ANS (B) after X hours in the figure, and there is a problem in that it takes too much time for the master station IA to check the status change under the control of the slave station 21B.

[Means to solve the problem]

This problem is caused by the control command C of the master station 1 to the slave stations 21 and 2n.
As the response signal ANS of the slave station, after the commanded slave station 21 finishes the commanded control operation, Y
After the period has passed, monitor data of own station DATA 1 (ANS)
This problem is solved by the configuration of the present invention that sends the response signal back to the master station IA as a response signal to the control command CI.

In the principle diagram of FIG. 1 showing the configuration of the control response method in the supervisory control device of the present invention, 1 indicates a supervisory command L sequentially sent to a plurality of slave stations 21 and 2n.
'1. +pn G is transmitted, and if necessary, a control command c1 is sent to a specific slave station 21 to change the circumferential voice, and station information DATA 1 (8NS
), DATA n (ANS) sequentially and collects data.

21 receives from the master station 1 the monitoring command p1 for data collection and the control command C1 for changing the station state, and immediately executes the control operation for the monitoring command pt upon reception, and for the control command c1. After a certain period of time Y has passed, which is the steady state after the end, the state data of the own station DATA 1 (ANS), DAT
This is a slave station that transmits An (ANS) to the master station 1.

Immediately after receiving the monitoring command pn for data collection from the master station 1, the station 2n transmits its own status data DATA n(AN
This is a slave station that transmits S) to the master station 1.

[Effect]

When the slave stations 21 and 2n of the present invention receive the monitoring commands 1) t and 1) n for data collection that are sequentially transmitted from the master station 1, they immediately transmit their own status data. Master station 1
The slave station 21, which is instructed to change the station status by the control command c1, receives the control command c1 directed to its own station and performs a control operation corresponding to the command c1, State data DATA 1 (ANS
) as a response signal to the master station IA.

After that, the master station IA performs a polling operation for the next slave station 2n. Therefore, the master station 18 does not have to wait until the polling time of the next cycle to receive the state data after the control of the slave station 21 that issued the control command c1 (it can be obtained in a short time and the problem is solved). Ru.

〔Example〕

FIG. 2 is a block diagram showing the configuration of a control response system in a supervisory control device according to an embodiment of the present invention, and FIG. 3 is a signal arrangement diagram for explaining its operation.

In FIG. 2, the master station 1 has a transmitter 11. Receiver 12°D
UP 13. The radio section of the antenna 14 and the control command generator 111. It consists of a monitoring control section of a polling monitoring command generator 112, which sequentially issues monitoring commands pi, p2. control command c1.p3 to instruct a specific slave station to change the station status as necessary.
c2, c3 to multiple slave stations 21.22.2.
3 to station information DATA HANS), ~DATA 3
(ANS) and collect data.

The slave stations 21, 22, and 23 each have a transmitter 211. Receiver 2
12°DIP 213. An antenna 214 radio, a controller 2111, a timer 2112. It consists of a monitoring control section of a station information generator 2113 consisting of a monitoring data acquisition device and an acquired data processing device (the configuration of slave stations 22 and 23 is the same), and receives a monitoring command pl + p2. for polling from the master station 1.
For station information generator 2113.2213.p3.
Upon receiving the command in step 2313, the own station status data DATA I (ANS) is immediately sent.

DATA 2 (ANS) and DATA 3 (ANS) are sequentially transmitted to the master station 1 as response signals, but the control command cL
c2. For example, for c3, the specific slave station 21
As shown in the signal arrangement diagram in the figure, the slave station 21. Suppose that when polling monitoring of the slave station 22 is finished, the control command c1 commands, for example, to turn on the ventilation motor of the own station.
The commanded slave station 21 turns on the ventilation motor for the control operation corresponding to the control command cl received by the receiver 212 using the controller 2111 of the supervisory control unit, and after the ventilation motor is turned on using the timer 2112. The station information generator 2113 is operated in a steady state after a certain period of time Y has passed, acquires the monitoring data of the own station, performs data processing such as comparing the acquired data with the previous monitoring data, and then returns the own station after control. status data DATA, 1 (ANS) is transmitted to the master station 1 as a response signal. After receiving the control response signal from the slave station 21, the master station 1 performs a polling operation for the next slave station 23.

Therefore, the master station 1 can know the post-control station status data DATA 1 (ANS) of the slave station 21 that issued the control command c1 in a short time without having to wait until the polling time of the next cycle. No problem.

〔Effect of the invention〕

As explained above, according to the present invention, the master station can know the status data after controlling the slave station to which the master station has issued the control command in a short time without having to wait until the polling time of the next cycle. This provides the advantage that the monitoring control device of the master station can quickly control the slave stations based on new monitoring data.

[Brief explanation of the drawing]

FIG. 1 is a principle diagram showing the configuration of the control response method in the supervisory control device of the present invention. FIG. 2 is a block diagram showing the configuration of the control response method in the supervisory control device of the embodiment of the present invention. A signal arrangement diagram for explaining the operation of the embodiment of the invention. FIG. 4 is a block diagram showing the configuration of a control response method in a conventional supervisory control device. FIG. 5 is a problem with the control response method in a conventional supervisory control device. FIG. 3 is a signal arrangement diagram for explaining the points. In the figure, (2) is a master station, 11 is a transmitter, 12 is a receiver, and 13 is a DtlP. 14 is an antenna, and 111 is a control command generator. 112 is a polling monitoring command generator, 21.22.23 is a slave station, 211.221.231 is a transmitter, 212.222.2
32 is the receiver, 213, 223.233 is DLIP,
214,224.234 is the antenna, 2111.221
L2311 is a controller, 2112, 2212.2312 are timers, and 2113.2213.2313 are station information generators. Child station (nuclear supervisory V'ming, 弯) Figure 1 + Xun O branch provisional view! Figure 4

Claims (1)

[Claims] A master station (1) sequentially transmits a monitoring command (p) to a plurality of slave stations (21, 2n), and selects a specific slave station (21, 2n) as necessary.
) is sent a control command (c1) instructing the station state to change, and the plurality of slave stations (21, 2n) transmit their own monitoring information [DA
TA 1 (ANS), DATA n (ANS)] in a monitoring and control device that transmits and receives a response signal as a response signal, a slave station (21) that has been ordered by the master station (1) to change the station status.
However, after a certain period of time (Y) has elapsed since the end of the commanded control operation and a steady state has elapsed, the own station's monitoring data DATA 1 (
ANS) as a response signal to a master station (1), and then the master station (1) transmits a monitoring command (pn) to the next slave station (2n). method.