JPH01149106A - Pattern control method for station equipment - Google Patents

Abstract

PURPOSE:To facilitate the change of software by classifying control contents to convert them to modules at the time of sequence control and assigning function codes to them with respect to software. CONSTITUTION:A station controller 1 directly controls power or the like of a process processing device 4 and equipments 1-(m) through a repeating relay 3 by command inputs from a station control panel 2 at the time of starting and terminating the work. Control information or the like of modes of equipments is transmitted from the station controller 1 to the process processing device 4. Thereafter, the station controller 1 turns on power sources of equipments. The process processing device 4 not only directly controls modes or the like of equipments 6 in accordance with received control information but also transmits state information or the like of each equipment to the station controller 1. When control contents like the number of control devices are changed, the logic of a program is kept as it is and a file where control contents are stored is changed to cope with this change.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to online real-time monitoring and a control method for a control system, and in particular, to a control method that can easily respond to changes in control content when performing pattern control. Concerning software creation methods.

[Conventional technology]

Conventional systems, when performing complex sequence control,
The control contents were incorporated as logic within the program. Therefore, when the control contents change, it is necessary to modify the program, resulting in extremely poor debugging efficiency and software maintenance efficiency.

[Problem that the invention seeks to solve]

With conventional technology, if the control content (number of controlled devices, control timing, etc.) changes when controlling multiple devices in sequence, such as when the system starts or ends, it is necessary to change the program logic. , software changes were difficult.

An object of the present invention is to provide a method for creating software that can easily adapt to changes in control content.

[Means for solving problems]

The above object is achieved by the method shown below.

That is, when performing complex sequence control, each control content is classified, modularized, and a function code is assigned by software (each module has a function code).

On the other hand, regarding the content of sequence control, a file with a block structure (function code unit) is created to store function codes and necessary information according to the control order.

The main program refers to this file in order from the first block and performs control according to the function code. Then, the process is terminated when the function code for control termination is referenced.

[Effect]

With this means, when there is a change in control content such as the number of controlled devices or control timing, the logic of the program remains as it is and the file that stores the control content is changed.
It becomes possible to respond.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

FIG. 1 shows the overall configuration of the system. The station control device l is
By inputting commands from the station control console 2 at the start and end of the workday, the process processing bag M4 and the equipment 1"m (5
), directly controls the power supply, etc. In addition, the process processing device i! from the station control device 1! 4, equipment m+
Control information etc. for modes 1 to m+n(6) are transmitted. After that, the station control device 1 turns on the power of the equipment m+1 to m+n.

The intelligent process processing device 4 directly controls the mode etc. of the equipment m+1 to m+n (6) according to the received control information, and also transmits the status information of each equipment to the station control device 1. and send.

FIG. 2 is a flowchart of the control sequence at the start of the system. According to this flowchart, control is performed while determining conditions at the start of work. In addition, the station control device 1 controls equipment 1 to m, m+1
It is also possible to turn on all the power supplies of ~m+n at the same time.

FIG. 3 shows the structure of a control content storage file when the control shown in FIG. 2 is performed. Assign function codes as shown below.

Function code 1: Power ON/OFF processing Function code 2: Mode control processing H3: D E L A Y processing 〃　　4: Process status determination processing 〃　　5: Task startup processing 6: Dummy block Function code 7: Control end Note that function codes 5 and 6 are not shown in FIG.

You are free to set up something like this.

FIG. 4 shows an example of items within a block when the function code is 1. The main program provided in the M\IJ control device 1 determines the function code of the first byte and jumps to the corresponding module. 2 to 8 bytes of block
The contents of the item in the byte differ depending on the function code. Each module performs predetermined processing using 2 to 8 bytes of information. In FIG. 4, the equipment code is information for searching the software address of the relay when performing relay output. Further, the control processing code is information for determining whether the power is on or off.

FIG. 5 shows an outline of the processing of the above main program.

According to this embodiment, when there is a change in the number of equipment, processing waiting time control order, etc., the items in each block of the storage file can be allocated or the blocks can be arranged without changing the logic of the program. It becomes possible to respond by changing, etc., increasing depacking efficiency and maintenance efficiency.

In particular, the station control device 1 is installed at each station, and the control at each station is different for each station.

According to the present invention, each station can prepare a station-specific file while others can be made common, which is also effective in terms of equipment integration.

(Effects of the Invention) According to the present invention, software modification time and debugging time associated with software changes are shortened, and the occurrence rate of problems during online operation is also reduced.

[Brief explanation of the drawing]

Figure 1 is an overall system configuration diagram of an embodiment of the present invention;
3 is a control sequence diagram, FIG. 3 is a diagram showing the configuration factors of files, FIG. 4 is a diagram showing the contents of blocks, and FIG. 5 is a diagram showing an outline of program processing. DESCRIPTION OF SYMBOLS 1... Station control device, 2... Station control console, 3... Relay relay, 4... Process processing device, 5... Equipment 1~
m, 6...Settings Figure 1 Figure 2 Figure 3 Eye 4th mouth

Claims (1)

[Claims] 1. In a station equipment management system consisting of a station control device, a station control console, and various equipment to be monitored and controlled, when performing pattern control of each equipment, processing contents are modularized and this A function code is assigned to the function code, and the processing contents are stored in a file in blocks according to the function code according to the control order, and items are defined and stored in each block corresponding to the function code. A pattern control method for station equipment characterized by the following.