JPS59223094A - Automatic controller - Google Patents

Abstract

PURPOSE:To omit artificial operation and monitoring, by residing a parameterized position to be controlled in a control module and advancing step by step a control parameter to the next position by monitoring the selection completed condition and responding work changed condition by means of a timer whenever control output of one position is made. CONSTITUTION:When a bath control switch is turned on and control registered in a parameter is started, a control module sends a control request to a transmitting-receiving module. When receiving the control permit of a pertinent route from the transmitting-receiving module, the control module sends a control code (selecting and operating commands of secondary stations and apparatuses) to a secondary station through the transmitting-receiving module. At the control module, time-out detection 13 is performed by taking the waiting time for three cycles from the control output to the change in responding work into consideration at maximum. When the change in responding work is recognized, it is considered that the control has completed and the next position parameter 15 is loaded to start the operation again from a new control request. When time-out is detected, an inhibit signal is sent to a control code distributor 14 and its control is temporarily cancelled, since occurrence of abnormality, etc., is considered in the transmission circuit.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a control method for a remote monitoring and control device, and in particular,
Related to automatic control equipment.

BACKGROUND OF THE INVENTION FIG. 1 shows an embodiment of a conventional remote monitoring and control device, and FIG. 3 shows its control flowchart.

In Fig. 1, l is a slave station which is a device to be controlled, 2 is a transmission line connecting the master station 3 and slave station l, 4 is a 7-cage bus that connects each functional module of 3 in the master station, and 5 is a control signal. P/
6 is a control module that performs control input; 7 is a linkage passport that connects the linkage bus and each functional module and manages data transfer; 8 is a switch/receiver module that performs S/P conversion of display signals; Data acquisition section using buttons, etc.; 9 is an encoder section; 1
0 is a code converter that converts a data code into a control code, and 11 is a control code output unit that outputs a control code in a predetermined format after a rationality check.

Now, when controlling a certain position for a slave station, first the slave station number must be selected, and then the device number must be selected. That is, the selection number is input through the data input section 8, converted into binary by the encoder 9, edited into a control code by the code conversion section 10, and transmitted to the corresponding slave station l via the transmitting/receiving module 5. Ru. The corresponding slave station decodes the corresponding device corresponding to the selected device number, waits for an operation command, and returns selection completion to the master station 6. When the master station confirms that this selection is complete, it selects the operation code and checks the response status of the corresponding device. In other words, ■ As a position control operation procedure, in such a two-behavior operation, the button must be pressed at least twice before and after confirming selection completion, and furthermore, the operator visually confirms selection completion and response state change. Therefore, if immediate response for emergency removal is required,
Another drawback is that when a plurality of controls are operated in a short period of time (i.e., emergency stop, etc.), the control response is delayed.

[Purpose of the invention]

An object of the present invention is to provide an automatic control device using control parameters that eliminates manual operation and monitoring.

[Summary of the Invention] The tfAf feature of the present invention parameterizes the control target position and makes it resident in the control module, and every time the control output of one position is output, a timer monitors the selection completion and response state change, and the control parameters are changed to the next position. The next step is to configure the system so that the control is performed automatically.

Embodiment of the invention] An embodiment of the invention is shown in FIG. 2, and a control flowchart is shown in FIG. 4.
This will be explained with a diagram.

The difference from the conventional device in Figure 2 is that a collective control switch is provided in place of the slave station selection switch, equipment selection switch, and operation command switch, and this switch can be used to determine the position group to be controlled in advance. and make it resident in the control module's memory. When the collective control switch is turned ON, the positions specified by the parameter (slave station selection, equipment selection/operation command) are sequentially sent to the υ slave stations by one action operation. In order to eliminate the time required for the operator to confirm the selection of the device to be controlled before issuing an operation command, the selection completion and response status changes are monitored using a timer installed in the master station, and if there is a response within a certain amount of time, The control for that position is considered complete and the process moves to the next position parameter. In this way, the table is incremented at 1, when the parameters of all positions are sent out. In more detail, FIG. 2 shows a data code discriminator that discriminates between conventional two-action switch information and collective control switch information, and 14 increments parameters in sequence when the collective control switch is pressed. Dual control code distributor,
15 is a memory area in which the selected position code to be controlled is stored. Reference numeral 13 is a timeout monitoring unit for confirming completion of selection and change in response status.When time amplifies, it interlocks the control code distributor, interrupts the advancement of the control code parameters, and cancels the interrupted position. do.

Now, when the collective control switch is turned on and the control registered in the parameters starts, the control module sends a control request to the sending/receiving fake module, and when the sending/receiving module confirms the ffflJ 0 work of the target route, the control code (
Sends slave station/device selection/operation commands) to the slave station via the transmitting/receiving module. From the slave station, selection completion data and
Changes in response to control are sent within the same cycle or over the next cycle. The control module performs timeout detection by considering the waiting time of three cycles from the time of control output to the change in response state. If there is a change in response status within this time, it is assumed that the control is completed, the next position parameter is loaded, and the control is restarted from the new control position.

If a timeout is detected, an abnormality in the transmission concave pulse or a failure in the control equipment of the slave station is considered, so an inhibit signal is sent to the control code distributor, the control is canceled once, and the next control is started. Follow or interrupt control at that point.

As described above, according to this embodiment, by parameterizing the position group to be controlled in advance and storing it permanently in the memory, it is possible to eliminate erroneous switch operation in the event of an emergency.
By using a timer, it is possible to periodically control the operation by touching it.

In addition, the time required to move on to the next operation after confirming selection completion and response status changes is greatly reduced by scanning to detect response status changes using timeout monitoring, allowing control while maintaining the reliability of two behaviors. It becomes possible to do this reliably.

[Advantageous Effects of the Invention] According to the present invention, control can be performed reliably in a short time in the case of an emergency where time is limited, and furthermore, since the position to be controlled is a parameter, it has the advantage of being able to be replaced at will. There is.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional device, FIG. 2 is a block diagram of an embodiment of the present invention, FIG. 3 is a conventional control flowchart, and FIG. 4 is a control flowchart of the present invention. 12...Data code discriminator, 13...Timeout monitoring section, 14...Control code distributor, 15...Control block 3 Figure $4 Problem

Claims (1)

[Claims] 1. In an automatic control device in which one master station device and a plurality of slave station devices are connected through a radial transmission path, the master station device can easily control the plurality of slave station devices by one action operation. When controlling multiple slave stations to be controlled, the multiple positions of multiple slave stations to be controlled are parameterized and stored in memory in advance, and the selected photons and response state changes for controlling a certain slave station are determined within a certain period of time. on the condition that you become
An automatic control device comprising means for recognizing control operation f "completion f:" and means for incrementing a control parameter upon completion of control of the - position and further moving to control of the next position.