JPH03102404A - Controller - Google Patents

Abstract

PURPOSE:To attain the control operations at both high and low speeds by unifying a microcontroller and a sequence controller into one body, separating a memory for instrumentation (DDC) from a memory for electrical control (one- person operator), and performing both the electrical control and the instrument control of a programming device in the same S mode. CONSTITUTION:A programming device 4 for instrumental control of a central computer 1 corrects or changes the set water level and applies the correction/ change to a controller 7 during its operation. Under such conditions, the computer 1 switches an automatic mode to a manual mode via an operating part 3. Then the computer performs a remote loading operation to memory 10 for instrumental control while the controller 7 is working in an electrical control (one-person control) mode. Thus the set water level and a program are changed. As a result, a due operation can be carried on with no stoppage of a lower rank controller (a plant equipment 14). Furthermore the instrumental control (DDC) is attained via an electrical control programming device 11. Thus the highly flexible control is ensured.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a programming device for electrical and instrumentation control of a controller, in which debugging (electrical and instrumentation control) cannot be performed in S mode. This invention relates to a suitable controller roller that can reduce the load on the roller.

[Conventional technology]

In conventional controllers of this type, instrumentation control (DDC) was performed using a microcontroller, and electrical control (one-person control) was performed using a sequence controller.

In this case, the microcomputer 1 is used as the programming device.
The Herola and other sequence controllers are installed separately, and when making changes to the instrumentation control (DDC), the microcontroller is temporarily stopped and the changes are made using a programming device. In this case, the sequence controller was able to continue operating (facility operation continued).

Electricity/Instrumentation] Since the integrated controller is used, when changing or modifying the instrumentation control (DDC), it is necessary to stop the controller (after stopping the equipment) and make the changes. did not become.

In order to solve these shortcomings, the memory for controllers I to rollers is divided into two parts.
C) is instrumentation control (
DDC), and perform remote loading to the lower controllers 1 to 1 to change the program. In this case, since the lower controller has separate electrical control memory and instrumentation control memory, only the one instrument control memory is modified. At this time, since the electric control (one-person control) changes the motes from automatic mode 1 to manual mode by the central computer, changes and corrections can be made to controllers 1 to rollers while they continue to operate. In addition, in water and sewage facilities, there are few cases in which second-place reducers are introduced from the beginning, so electrical and verbal control can be debugged in S mode with programming. & function, the controller can be fully debugged with a programming device, and if a 4-place computer is created in the future, -1-. Changes can be made using the i1 calculator.

Furthermore, Japanese Patent Laid-Open No. 55-69804 discloses a process control system, but in the known example, mode switching (switching from automatic mode to manual mode) of lower-level terminal controllers is controlled from a central man-machine interface device. be.

The present invention has separate memories in the controller for the electrical control (one-person control) part and the instrumentation control part, and the memory is largely divided into two parts. Change and correct the program using the programming device and blow to the computer 7-3 Ft = + 3 Change and correct the instrumentation control (DDC) using the programming device and perform remote loading to the lower controller and instrumentation $1 In this case, only the control (DDC) is changed and corrected, and in this case, the electric control (one-person control) is left as it is and the operation is continued.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, control is performed separately by the microcontroller 1 to the rollers and the sequence controller.

(Electrical control is controlled by one person, instrumentation control is controlled by one person) DC control)
In this case, the equipment cost is high and the installation space is also large.

An object of the present invention is to integrate a microcontroller and a sequence controller [instrumentation control (DDC) and electrical control (one-person control)] into one controller, and to provide memories for instrumentation control (DDC) and electrical control (one-person control). control) separately.

Also, the programming device, electrical control, and instrumentation control are the same.
In S mode-L, [1j] is used to fulfill the conventional functions.

[Means to solve the problem]

4 The above purpose is to make the controller into a single unit and to implement instrumentation control (D
DC), electrical control, and separate memory. The programming device for electrical control and the programming function for instrumentation control are added to the central divider and are programmed separately.And the programming device is also used for electrical control and instrumentation control. This is achieved by being able to debug even when there is no host computer by being able to do it on a remote computer.

[Function] The controller is a one-piece electric/instrument controller, and has a programming device dedicated to electricity in the electrical control (one-person control) part, and in the meter control (DDC), the programming device function is controlled by the central divider. , and perform remote loading from the central computer. CONL・
By dividing the memory into two main parts, one for electrical control and one for instrumentation control, the rollers can be used more easily than the central computer.
Modify the device control (DDC) part and perform remote 1-loading to the lower controller. In this case, since only the instrumentation control (DDC) memory of the lower controller 110 is modified, the controller is controlled only by electrical control (
Since it is possible to carry out manual control), it is possible to operate the controllers 1 to 2 without stopping them. Additionally, in water and sewage facilities, there are few cases in which high-level computers are installed from the beginning. In this case, the electrical/instrument control can be debugged using the programming device in S mode 2, and in S mode 2,
Electrical control performs high-speed control, instrumentation control performs low-speed control, and S
It has a function that allows you to debug electrical and instrumentation control on the mode, and in order to reduce the burden on the controller, the instrumentation control program is made into a menu, and this function (menu) includes the execution cycle function and peak load function. In order to reduce the burden, the function of changing the execution phase can be performed in the S mode, so that the controller can perform a wide range of control from high-speed control to low-speed control.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

The embodiment shown in FIG. 1 is constituted by a controller 7 through a transmission 5 from a central computer 1-.

The controller 7 has two main memories: an electrical control memory 9 and an instrumentation control memory 10, and a transmission memory 8. The electrical control memory 9 is mainly used for human control (ladder sequence), the instrumentation control memory 10 is mainly used for DDC control, and the transmission memory 8
The transmission memory was mainly used for transmission, and the functions of each were divided.

In this case, the programming device is also roughly divided into two.
One is electrical control (one person control). 1l electrical control programming device and another instrumentation control (DI) C)
It is composed of a central computer and a programming device 4 for in-koma control. Normally, the electrical control memo 1 and 9 of the controller are changed and corrected by the electrical control programming device L. In addition, the instrumentation control memory 10 is
Changes and corrections are made using the instrumentation control programming device 4 of the central computer 1, and changes are made to the memory 10 for the instrumentation control 7- from the central computer 1 using the remote 1101 deink 6. Furthermore, when the central computer 1 creates an instrumentation control (DDC) program using the instrumentation control programming device 4, the display section 2,
A DDC program is created using the operation unit 3, and sent from the central computer 1 to the controller 7 via the transmission memory 25 and the transmission 5.
Data changes and corrections are made to the instrumentation control memory "○" through The controller 7 issues a start/stop command to the plan j-equipment 4 from the electrical control (one person control) memory 9 to the bomb 2. Also, the number of pumps to be started is controlled from the instrumentation control memory ○ according to the water level 1-3 at the detection end. control the natives. A start/stop command is issued to pump unit 2 to operate the pump. Furthermore, in water and sewage facilities, there are few cases in which the host central computer 1 is installed from the beginning. For this reason, the programming device has the function of creating an instrumentation control (DIDC) program on the 8S mode of the electrical control programming device 11, and the controller can be programmed on the electrical control programming device. Create a subroutine (menu) that can be called for instrumentation control (DI) programming on the S mode of the electrical control memory 9 of 7, or call it in the S mode from the electrical control memory 9 to the instrumentation control memory 0. Instrumentation control is performed by Con] Roller 7 is Plan 1.
The controller 114 starts and stops the pump 2 from the memory 9 for electrical control (one-person control).
DDC) is called by a subroutine in S mode 2 from the electrical control memory 9, and controls the number of pumps to start depending on the water level 1-3 at the detection end from the instrumentation control memory 10. 9 performs one-person control of the pump. Issue start/stop commands to pump]-2 to operate the pump. If a central computer is introduced in the future, instrumentation control will be possible using the central computer.

According to the invention, when the controller 7 is in operation 5 the central computer 1
When changing or correcting the water level set value using the programming device 4 for field control and making changes or corrections to the controller 7, the central computer 1 switches the automatic mode to the manual mode using the operation unit 3, and the controller 7 During operation under electric control (one-person control), the lower controller I and rollers can be stopped by remotely loading the instrument control memory 0 from the central computer 1 and changing set values and programs. (Plan 1/Equipment 1-4 stops), operation can be continued, and the electrical control programming device 11 can perform IT 1 control (DDC). It is possible to perform the functions of the sequence controller and the sequence controller in one function, and has the advantage of being able to perform inexpensive and flexible control.

In FIG. 2, the difference between the embodiment and the previous embodiment is that the electrical control memory 9 of the controller 7 and the instrumentation control memory 1
0 as the same electrical control/instrumentation control shared memory 16, and the same electrical control/instrumentation control shared memory]-6 is of a duplex type, and there is no change from other structural elements. That is, the transmission memory 15 is divided into an electrical control memory 9 and an instrumentation control memory 10, and is configured in a duplex manner.

The embodiment shown in FIG. 3 is a flowchart for calculating in the S mode from the electric control memory 9 in the controller I to the roller 7. First, in the S mode of the electrical control memory 9, the manual data is first rearranged, and then the instrumentation control memory 10 is interrupted by executing the second subroutine "S mode". The instrumentation control memory 10 determines the processing mode according to the menu specified by the S mode, reads data from the input address specified by the parameter, performs calculations, and reads the result from the input address specified by the parameter. A fetch operation is performed and the result is similarly set to the output address specified by the parameter. When the number of processing points set by the parameter has been executed, a termination determination is made and the process returns to S mode 1~. The data output by the subroutine is used to perform output processing using Smol.

In the embodiment shown in FIG. 4, a flow is shown in which calculations are performed in the S mode using the controller 7 and the electric control memory 9. The instrumentation control (DDC) of the instrumentation control memory 10 is written in "S mode" by the electrical control memory 9, and the activation condition A of the function coil (ADDR/FUNC) is
When ``1'' is established, an interrupt is generated in the processing unit of the controller, the S-mode processing is stopped, and the subroutine program created in the instrumentation control memory 10 is executed. At this time, the four parameters described in the S mode program can be used as a program. The parameter (2) rearranges the input data on the S mode and inputs the input data start address. For the parameter (2), use the data output by the subnore trace and write the output data start address as output data on the S mode.

Parameter (2) processes TAGN◯ for instrumentation control, processing cycle, and execution phase. The processing cycle parameters are
It is designed to be able to be set in TAGNO units, and it is possible to specify whether to execute every S mode cycle or once every N S mode cycles. Parameters marked with ■ represent function menus. There are two menus for the controller function and auxiliary calculation function.
Process it separately.

From the water level 13 at the detection end, the analog electrical control memory 9
Then, processing is performed in the S mode, an interrupt is applied to the instrumentation control memory 10, the S mode processing is stopped at - time, and the subroutine [FUNC] instruction created in the instrumentation control memory 10 is executed. ■Bj. t; / wo
rd information is sent to the specified S mode work area. ◎(A.DI)R'1 instruction is executed. It is actually a dummy instruction for registering address information on the S mode program, and ends without processing anything. (2) calculates the TAG NO of the instruction from the menu. (2) reads the setting value of the processing cycle from the menu, compares it with the count value of the TAG, and determines whether execution is necessary. ■TA. From G N○, the T A. Calculate the 1~tube address of the table of G. ■ [ADDR]
Find the top address of the S-motor work area from the parameter section of the command. ■Some of the menus are manually processed by determining the human specifications. ■Part of the menu: Control specifications are judged and control calculations are performed. Control calculations require various parameters for each processing function, but the parameters are set in the 71' A G N○ tape nore. , control calculations are performed using these parameters. ■Part of the menu Determine the output specifications and perform output processing. ■ Return A to the calculation result processed by PdD from the output program.
Perform O output instrument failure processing. In this case, analog human power detection and output values of the water level 13 at the detection end can be taken in in S mode and displayed as DDC human output data and actual data.

The embodiment shown in FIG. 5 shows the flow of execution phases in S-mode cycles.

Instrumentation control (DI) C) is executed linked to the S mote, forming one stack.

Therefore, when instrumentation control (DI) C) is executed, since the S mode is stopped, if the number of instrumentation control (DDC) processes increases, the processing time for S modes 1 to 3 becomes longer. Therefore, regarding the TAG whose instrumentation control (I) DC) does not need to be executed constantly in the S mode period, the load is reduced by changing the execution phase in order to reduce the peak negative EQ.

According to the present invention, there are few cases in which a -I second-place computer is introduced from the beginning. In this case, the electrical/split control can be debugged in S mode-7 using the programming device, and the electrical control is high-speed control in S mode, and the instrumentation control is high-speed and low-speed control, and in S mode 1 to above. In order to have a debug function for electrical/instrument control and reduce the load on the controller I~roller, the M1 bag control program is made into a menu, and the execution cycle and execution phase functions are included in this function (menu). Since the controller 1 to roller control can be performed in various modes, it is possible to perform a variety of controls from high-speed control to low-speed control.

〔Effect of the invention〕

According to the present invention, the programming device in the controller is roughly divided into two, one for electrical control, and one for the programming device in the host computer, and the controller is operated "II.
When making changes to the lower-level controller from the programming device of the upper-level computer, it is not possible to perform flexible control without stopping the lower-level controller. In addition, in S mode L, electrical control performs high-speed control and instrumentation control performs low-speed control. The system control program is made into a menu, and in this function (Me:.=L-), the execution cycle function and the function of changing the execution phase to reduce peak load can be performed in S mode. Allows for flexible control.

[Brief explanation of drawings]

1 and 2 are system configuration diagrams showing an embodiment according to the present invention, FIGS. 3 and 4 are system configuration diagrams showing an embodiment according to the present invention, and FIG. 5 is a system configuration diagram showing an embodiment according to the present invention. It is a detailed view. 1... Central divider, 2... Display section, 3 Operation section, 4.
Programming device for instrumentation control, 15... Memory for transmission, S transmission, 6 - Remote loading, 716... Controller, 8 - Memory for transmission, 9 - Memory for electrical control, 12... Pump, code 3 Water level, 1-4 Plan 1 ~ Equipment, 16 ・Electrical control/instrumentation side common use/2 Fig. 1 Fig. 2

Claims (1)

[Claims] 1. In a controller that has electrical instrumentation (E/I) control in one controller, the programming device is roughly divided into two parts: one is a programming device that performs electrical control, and the other is a programming device that performs electrical control. One has a programming device that performs instrumentation control, and the programming device that performs instrumentation control is located in the host computer, making it possible to have two programming devices. The control (DDC) can be changed and modified, and then remotely loaded into the controller. In this case, the electrical control (one-person control) in the controller continues processing, and only the instrumentation control (DDC) can be modified, and , a controller characterized in that it can be debugged on the S mode of a programming device. 2. In the controller, the programming device is S
In S mode, electrical control performs high-speed control and instrumentation control performs low-speed control, and it has a function that allows debugging of electrical and instrumentation control in S mode.In order to reduce the load on the controller, the instrumentation control program can be set in the menu. A controller characterized in that, among the functions (menu), an execution cycle function and a function of changing an execution phase for reducing peak load can be performed in S mode.