JPS61160105A - Timing control system - Google Patents

Abstract

PURPOSE:To change or add a timing sequence flexibly without changing hardware by effectively combining a timing control device with a timing control computer for executing logical decision. CONSTITUTION:A timing control system 2 receives timing sequence data from a host controlling computer 1, executes the logical decision of the sequence by a timing signal based upon an equipment status signal of an equipment control device 5 on the basis of the sequence and sends a timing command to the device 5 on the basis of the decided result. On the other hand, the start command, end report, control abnormality, controlled result, etc. of a timing control system are actuated on the basis of commands from the computer 1. When the timing sequence is controlled on the basis of the timing control table specified by the computer 1, the flexible timing sequence can be attained by changing the timing sequence data without the change of the hardware.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a timing control device that performs high-speed and high-precision sequence control based on predetermined timing, such as a particle accelerator or nuclear fusion experimental device, and in particular, relates to a timing control device that performs high-speed and high-precision sequence control based on predetermined timing. The present invention relates to a timing control system suitable for setting and changing sequences and reproducible timing control.

[Background of the invention]

Conventional devices include a clock pulse generator module (CPG), as described in Japanese Patent Application Laid-Open No. 56-54511;
By combining independent functional component modules such as a timing control module (TMC) and interconnecting these modules, a sequence system was created. Further, the 1MC module makes one limited logical judgment and outputs one timing command as its output. For this reason, changes and additions to the sequence system require the addition of new modules, and the necessity of changing wiring connections, so flexibility for changes and additions to the sequence has not been considered. Ta. Further, even if it becomes necessary to switch the control sequence in the middle of the sequence, the switching control cannot be performed. Furthermore, since it supports only limited logical judgment functions, it is impossible to make logical judgments using arbitrary setting data, arbitrary timing information, etc., and the combination of logical judgment and timing commands is impossible. Since it is based on modules, many modules are required depending on the type of logical judgment.

Furthermore, it is not possible to output timing commands that maintain synchronization between timings for combinations of complex logical judgments, resulting in poor sequence reproducibility.

[Purpose of the invention]

An object of the present invention is to provide flexibility in timing control that performs high-speed and high-precision sequence control without changing the hardware for changes or additions to the timing sequence, and to adapt to plant conditions during the control sequence. The present invention provides a timing control system which has a function of switching and controlling a sequence using a master clock, and is also capable of sending a timing command synchronized with a master clock.

[Summary of the invention]

The present invention effectively provides a timing control device that counts time and inputs/outputs timing signals, and a timing control computer that makes logical decisions based on a predetermined timing sequence at the timing that occurs in the event orientation from the timing control device. By combining the above objects, the above object is achieved.

In other words, the timing sequence data is set from the host control computer to the timing control computer, and the timing control computer performs timing control based on this data while coordinating with the timing control device. Even large-scale changes and additions can be handled simply by changing the timing sequence data from the host control computer.Furthermore, it is possible to deal with complex changes and additions that were impossible with conventional module configurations. The system has a logical judgment function and can handle complex timing sequence configurations, making it a system that is significantly more flexible than conventional systems.

In addition, as timing sequence data, in addition to the steady timing sequence, by setting a sequence for responding to plant abnormalities, the control sequence can be switched when an abnormality occurs, and the point in time when the normal sequence is switched again after the abnormality has been recovered. It has a control switching function that can be started from This is while the clock counter is counting.
By outputting a control switching command, the timing control computer has a circuit that saves the count value at that point in time. This value is stored in the timing control computer, and when an abnormality is recovered, this memory value is set in the clock counter. It will be done.

Furthermore, the event orientation signal associated with a change in the state of external equipment is temporarily held, inputted to the timing control computer at a timing synchronized with the master clock, and a logical operation is performed, and the timing command output based on the result is By outputting in synchronization with the master clock, it is possible to output timing commands for all event-oriented operations in synchronization with the master clock, regardless of the operating state of the plant.
High precision and reproducibility of timing sequences can be obtained.

In addition, the timing control computer provides a high-performance digital timing control system in which the execution status of timing sequences can be recorded in detail, and furthermore, the health of the timing control system can be easily diagnosed. It is something to do.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. FIG. 1 shows the overall configuration of the present invention.

The timing control system 2 is a calculation hit for host control.
1 C) Receive the timing sequence data, and based on this sequence, use the timing signal from the equipment status signal of the equipment control device 5 to make a logical judgment on the sequence, and based on the result, issue a timing command to the equipment control. Send to device. It also operates based on commands from the host control computer 1, such as start commands, termination reports, control abnormalities, control results, etc. of the timing control system.

Next, FIG. 2 shows a schematic configuration of a timing control system 2 comprising a timing control calculation@3 and a timing control device 4, and FIG. 3 shows an example of a timing sequence. The example timing sequence shown in FIG. 3 is coded as shown in FIG. 4, and is set in advance as timing sequence data from the host control computer 1 to the timing control computer 3 as shown in FIG. , stored in the timing control table. The timing control program of the timing control computer is activated by the timing control start command from the host control computer 1, and the timing control table is referenced to set the time 1%lf]t1 in the clock counter of the timing control device 14.

A clock counter counts the master clock, and at an appropriate point in time t1, the timing control program of the timing control computer 3 is started, and the conditions from the host control computer and the equipment control device 5 are activated according to the contents of the timing control table. The equipment status signal is sent to the timing control device 4.
A logical judgment is made using the input timing signal via the timing signal input circuit of the timing control device 4, and a timing command is sent to the facility control device ft5 via the timing command output circuit of the timing control device 4. Furthermore, the timing control results based on the timing control program are stored in a timing control table. Furthermore, if an abnormality is detected in the process of the timing control program executing timing signal input/output and logical judgment, the timing control abnormality is immediately notified to the host control computer to prevent the accident from spreading. As described above, host control computer 1
5th based on the timing control table specified by
By performing timing sequence/sequence control using an example of the timing control program shown in the figure, it is possible to configure a flexible timing sequence by changing the timing sequence data, and it is possible to configure a flexible timing sequence without adding or modifying hardware. It is economical because it can be done.

Next, the configuration of the timing control device 4 is shown in FIG. Timing control calculator 3 determines the timer preset value.
The clock counter is set in the preset register 10 and the clock counter is set to the master clock (for example, l m
s), and at the time of time-up, an interrupt is input to the timing control computer. Further, the event-oriented timing signal from the equipment control device 5 is temporarily held by the timing signal hold circuit 6, and if there is a timing signal held by the clock signal of the master clock 8, the timing signal is held by the timing signal input circuit 7. Input the timing signal change into the timing control computer. Further, the timing command data of the timing control computer 3 is temporarily held by the timing command hold circuit 13, and the timing command is sent to the equipment control device 5 by the timing command sending circuit 12 in response to the clock signal of the master clock 8. This results in
It is possible to perform timing sequence control synchronized with the master clock 8 in response to variations in the event-oriented timing signal of the equipment control device 5 and the calculation execution time of the timing control computer, and it is possible to achieve highly reproducible sequence control. .

Furthermore, since the timing signal input circuit inputs the timing signals of the facility control device 5 for each clock of the master clock 8, it is possible to reduce the load on the timing control computer 3. It is possible to achieve flexible and stable sequence control.

In addition, as shown in Figure 7, if an unsteady state occurs during the execution of a steady timing sequence, the unsteady state is immediately restored to a steady state by a timing sequence for handling unsteady states, and the system is recovered. At this point, the equipment can be stably controlled by switching the control of the timing sequence so that the steady timing sequence can be restarted from the original point. For this purpose, as shown in FIG. 6, by issuing a control switching command from the timing control calculation @3 at the timing when an unsteady state occurs, the count value from the middle of the clock counter 9 is saved in the count value save register 11, and at the same time , it is possible to accurately maintain the continuity of the steady sequence by starting the unsteady timing sequence, and restarting the steady sequence from the count value saved above at the end of the unsteady timing sequence for restoring the unsteady state. be.

As described above, according to the present invention, it is possible to construct a timing sequence that is economical and has 7 flexibility, and it is also possible to have highly accurate timing sequence reproducibility. The control switching function enables advanced timing sequence control.

〔Effect of the invention〕

According to the present invention, the timing sequence control is performed by the timing control program of the timing control computer based on the timing sequence data from the total X machines for host control in cooperation with the timing control device. Changes and additions can be made by simply changing sequence data, and complex logical judgment functions can also be executed, making it possible to construct a timing control system with 7 flexibility.

In addition, since the input of timing signals and the output of timing commands can be input and output in synchronization with the master clock, it is possible to reproduce event-oriented equipment status signals and highly accurate timing sequences even against variations in computer processing time. It has the effect of gaining sex.

Furthermore, if an unsteady state occurs during steady sequence control, immediately switch to the unsteady state,
By being able to restart the original steady sequence at the time of recovery from the unsteady state, there is an effect that stable timing sequence control of the equipment can be performed. The timing control computer can record the control results of the timing sequence in detail, and furthermore, it is possible to self-diagnose the health of the timing control system, thereby providing a timing control system with excellent maintainability.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the timing control system of the present invention, FIG. 2 is a schematic configuration diagram of the timing control system of FIG. 1, and FIG. 3 is an explanatory diagram of an example of the timing sequence of FIG. 1. 4 is an explanatory diagram of the configuration side of the timing sequence data of FIG. 1, FIG. 5 is a flow diagram of the timing control program of FIG. 1, FIG. 6 is a configuration diagram of the timing control device of FIG. 1, and FIG. 2 is an explanatory diagram of the control switching side of the timing sequence of FIG. 1. FIG. DESCRIPTION OF SYMBOLS 1... Host control computer, 2... Timing control system, 3... Timing control computer, 4... Timing control device, 5... Equipment control device, 6... Timing signal hold circuit, 7...Timing signal input circuit.

Claims (1)

[Claims] 1. In a device that judges equipment status signals from equipment control equipment in real time based on a timing sequence specified by timing sequence data and sequentially sends timing commands to equipment control equipment based on the results, a master clock is used. , a clock counter for counting time using the master clock, a timing signal input circuit, a timing command output circuit, a time-up of the clock counter and a timing signal from the timing signal input circuit, and a timing signal as the timing sequence data. By calculating timing command output items using a sequence table, an output timing definition table, and a judgment condition definition table and outputting them to the timing command output circuit, the structure is configured to be able to flexibly respond to timing sequence settings and changes. A timing control system characterized by: