JPS61187005A - Monitor and control device - Google Patents

Abstract

PURPOSE:To facilitate changing contents of tables of function units in on-line by providing a computer device where contents of tables of plural function units are stored and an interface part connected to a common bus. CONSTITUTION:Tables of function units 1-4 whose change or the like is required are read out from tables of all function units 1-4, which are stored in a memory of a personal computer (PC)14, and are changed by only the PC14. When bus occupation permission is passed to a table changer 13, information indicating that a bus is occupied for the purpose of changing tables is sent to function units 1-4 through an N:N common bus 5, and devices other than the table changer 13 are inhibited from bus occupation. The table changer 13 designates the function unit whose table should be changed and is linked to the function unit to make a condition equivalent to 1:1 connection, and only the change or the like of the function unit is performed at once.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a supervisory control device that monitors and controls, for example, a large number of unmanned substations, in which a group of functional units with a single function are connected via a NUN common bus. This invention relates to the setting, modification, and addition (hereinafter referred to as modification, etc.) of tables of each functional unit in a functionally distributed type supervisory control device that has the functions of monitoring and controlling as a whole.

Conventional technology For example, in order to monitor and control a large number of unmanned substations, a monitoring and control center is equipped with large computers, operating vehicles, graphic panels, and CRTs corresponding to each unmanned substation.
A functionally centralized supervisory control system consisting of the following equipment was installed, and the supervisory control terminals installed at each unmanned substation were connected to the supervisory control equipment at the supervisory control center using transmission lines.

Function-intensive monitoring and control devices using large-sized computers have many functions, but cannot use 100% of their functions, and are therefore inefficient.

Therefore, for the purpose of increasing efficiency, a functionally distributed type supervisory control device has been proposed in which a group of functional units each having a single function and composed of a microcomputer are connected via a NUN shared bus.

As shown in FIG. 5, this function-distributed supervisory control device connects four functional units 1 to 4 with a NiN shared bus 5, connects a console 6 to functional unit 1, and connects functional unit 2 to functional unit 2. A graphic panel 7 is connected, a CRT 8 is connected to the functional unit 3, and a terminal IO is connected to the functional unit 4 via a transmission line 9. In this case, functional unit 1
Functional unit 2 has a console input processing function that processes selection and control signals from the operation console 6. Functional unit 3 has a graph ink panel display function that displays various data on the graphic panel 7. The six-function unit 4, which has a CRT display function for displaying information on the CRT 8, has an information transmission function for exchanging information with the terminal device 10.

The order in which each of the functional units 1 to 4 occupies the NiN shared bus 5 is predetermined by hardware, and according to the predetermined order, bus occupancy permission is transferred to each of the functional units 1 to 4. Data is exchanged between them via the NiN shared bus 5. In other words, NUN within a predetermined time
Permission to occupy the bus is sequentially given to functional units 1 to 4 that have registered that they wish to occupy the bus 5 and send data, and the functional units to which permission to occupy the bus, for example 1, send data. When this is completed, the process moves to the next functional unit 2, and if there is no data to be sent to the next functional unit 2, the bus occupancy permission is passed to the next functional unit 3, and the movement of this bus occupancy permission indicates the request for data transmission. This continues until there are no more registered functional units 1 to 4.

In this case, bus occupancy permissions requested during the registration time are registered, and executed after the registration time ends, and when all executions are completed, the registration time returns.

As shown in FIG. 6, each of the above-mentioned functional units includes a CPU unit 11 that develops each function and is connected to the NiN shared bus 5, a CPU 5ll, and input/output devices (operator console 6, graphic panel?, CRT 8, terminal). The Ilo (input/output) section 12 serves as an interface with the Ilo (input/output) section 12, which serves as an interface with the Ilo (input/output) section 12, which serves as an interface with the Ilo (input/output) section 12,

Furthermore, as shown in FIG.
Each board consists of a NUN shared bus interface board IIA equipped with a shared bus interface, a CPU board IIB equipped with a CPU, a control memory board IIC equipped with a control memory, and a table memory board IID equipped with a table memory. IIA-110 is C
They are connected via PU bus LLE.

The control memory board IC has a NiN shared bus 5°110
It contains a program for controlling and processing data input and output through the unit 12 and the like, and each function is determined by this program.

The table memory board 110 stores tables of constants, coefficients, addresses, data types, etc. when controlling and processing data input from the NiN shared bus 5, and 110 parts 12
It contains tables of constants, coefficients, addresses, data AI types, etc. used to control and process data input from the computer.

For example, the table memory of a functional unit (1) with a vehicle input processing function may contain a table IA-1 as shown in FIG. 8(A).
The table memory of the functional unit 2 which stores the IC and has the graphic panel processing function is shown in FIG. 8(B).
Tables 2A and 2B are stored as shown in C.
Tables 3A and 3B as shown in FIG. 8(C) are stored in the table memory of the functional unit 3 having the RT display function, and tables 3A and 3B as shown in FIG. Tables 48 to 4E as shown in D) are stored.

The CPU board IIB has various functions by executing the program stored in the control memory. At this time, information such as constants, coefficients, addresses, data types, etc. required for data control and processing is read from the table memory.

The NUN bus interface board IIA serves as an interface between the N:N shared bus 5 and the CPU board IIB.

With the above configuration, the unmanned substation can be controlled via the terminal device 10 based on commands from the console 6,
The status of the unmanned substation is imported via the terminal 10 and displayed on the graphic panel 7 or CRT 8.

Note that if there are a large number of unmanned substations, a functional unit 4 having an information transmission function may be provided corresponding to the unmanned substations.

In such a conventional function-distributed supervisory control device, when changing tables in each functional unit 1 to 4, the table memory board 110 is removed from each functional unit 1 to 4, and the table memory board 110 is used as a table changer. Insert it, operate the table changer to change the table,
End of table change 1&, table memory board LID
This was done by inserting the function units 1 to 4 into the original functional units 1 to 4.

Problems to be Solved by the Invention In the supervisory control device having the above configuration, the table memory board LID must be attached and detached from the functional units l-1 to 1-4 each time the table is changed, and the work of changing the table is extremely difficult. It was a hassle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a monitoring and control device that can easily change the table of each functional unit.

Means for Solving the Problems The supervisory control device of the present invention includes a plurality of functional units that each connect input/output devices and exchange data with each other, a coexistence bus that connects the plurality of functional units, and a coexistence bus that connects the plurality of functional units. A computer device that stores the contents of tables of a plurality of functional units, and an interface unit that connects the computer device to the shared bus, and a functional unit number and table data that need to be changed, etc. are transmitted from the computer device through the interface unit. The table data is sent to the coexistence bus, and a functional unit corresponding to the functional unit number sent to the shared bus receives the table data and changes its own internal table data.

Operation With the above-described configuration, this monitoring and control device sends table data from a computer to a functional unit that requires table changes, etc., and the corresponding functional unit receives the data and changes its own table. I will do it.

Therefore, the table of the functional unit can be changed very easily online without removing the table memory board from the functional unit.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG.
A table changer 13 is connected to the UN shared bus 5. Functional units 1 to 4 in FIG. Operation console 6.
Graphic panel 7, CRT8. Transmission line9. Terminal 1
0 is the same as the conventional example, so a description of its configuration and operation will be omitted.

The table changer 13, which is the main part of the present invention, will be explained in detail below.

The table changer 13, as shown in FIG.
It consists of 5. The personal computer 14 is composed of a personal computer main body 14A, a floppy disk device 14B, a keyboard 14C, a CRT 14D, and a printer 14g.
The table is stored in memory.

This personal computer 14 is coupled to an I/F unit 15 through a transmission interface (R3232C>16).This I/F unit 15 includes a CPU board 15A equipped with a CPU and an I/F unit equipped with an I/F control memory. /F control memory board 15B and a NUN bus interface board 15C equipped with a NUN bus interface, each board 15A to 15C is connected by a CPU bus 15D, and a table memory board IID removed from functional units 1 to 4 A space 15E is provided in which the CPU bus 150 can be connected to the CPU bus 150.

The 1/F control memory board 15B stores data input and output through the SUN coexistence bus 5 and the personal computer 1.
Contains programs for controlling and processing data from 4.

The CPU board 15A exchanges data with the personal computer 14 and with the NUN shared bus 5.

N: N shared bus interface board 15G is N
It serves as an interface between the UN shared bus 5 and the CPU board 15.

Here, the functions of the table changer 13 and each of the functional units 1 to 4 when changing the table will be briefly described.

First, the personal computer 14 converts data such as man-machine and table changes into a format that is easy for I/Fill (15) to understand, and also stores data such as changes.

1/FfJ15 has the same function as functional units 1 to 4, and occupies the bus to send and receive data. That is, it receives data such as table changes from the personal computer 14, understands it, converts it into a format that can be easily understood by the functional units 1 to 4, and sends it to the SUN shared bus 5.

Functional units) 1 to 4 have the functions that they control and process defined by the program in the control memory and the contents of the table in the table memory, and send and receive data to and from the 110 unit 12 and the N:N shared bus 5. It receives data such as table changes from the table changer 13 via the N:N shared bus 5 and changes the contents of its own table memory.

However, the tables of the functional units 1 to 4 can only be changed when the manual rewrite permission switch mounted on the table memory board LID is turned to the rewrite permission side.

Then, the table changer 13 creates data such as table changes through the man-machine of the personal computer 14, occupies the N:N shared bus 5 through the I/Fe 15, and sends the data to each of the functional units 1 to 4. in this case,
The table changer 13 continues to occupy the bus, and data such as table changes is sent to functional units l-1 to l-4, which receive the data and change the tables. After the table change is completed, the functional units 1 to 4 occupy the NUN shared bus 5 and send the results of the changes to the table changer 13, and the table changer 13 checks whether the changes have been made correctly. Note that this check is performed by the personal computer 14.

Next, the operation of the table changer when changing the table online will be described in detail.

First, the table of the functional units 1 to 4 that needs to be changed, etc., can be stored in all the functional units 1 that the personal computer 14 has in its memory by using only the personal computer 14.
- Call from table 4 and change. This operation is performed in advance for the tables of all functional units (1 to 4) that need to be changed.

Next, when the table changer 13 is granted bus occupancy permission, information indicating that ``bus occupancy is to be performed to change the table'' is sent to each functional unit 1 through the NUN shared bus 5.
4 and asked them to get off the bus from occupying the bus except for table changer 13.

Next, the table changer 13 specifies the functional unit to be changed, for example l, and links with it, creating a situation equivalent to the l:l connection as shown in FIG. 2, and changes the functional unit 1. etc. are performed all at once, and changes to this table are performed sequentially for each functional unit that requires changes.

The bus occupancy state by the table changer 13 continues until information to cancel the change is issued.

Note that the bus interface board 15C of the I/F section 15
When the NUN shared bus 5 fails, the functional unit that needs to be changed, for example, from 1 to the table memory board 11.
0 and insert it into the table memory board connection space 15H of the I/F section 15 as shown in FIG.
You can also make table changes offline.

Next, the operation during online table modification will be explained in more detail.

Step 1 Specify that the personal computer 14 of the table changer 13 is to change the table online.

Step 2 When the bus occupancy permission signal comes to the table changer 13,
The table changer 13 successively sends out two or more pieces of table change request information to the N:N shared bus 5.

Step 3 Functional units 1 to 4 (other than table changers) that have detected two or more pieces of table change request information consecutively send table change permission information together with their own machine number to the N:N shared bus 5, and then issue instructions. Occupying the NUN shared bus 5 and outputting information will stop until the NUN shared bus 5 is reached. Note that if table change request information is not detected continuously for 21 or more times, the status remains unchanged.

Step 4 When the table changer 13 receives table change permission information from all the functional units 1 to 4, it enters table change processing.

Step 5 Specify the functional unit number to be changed and send this functional unit number to the N:N shared bus 5.

Step 6 Each of the functional units 1 to 4 takes in the functional unit number sent through the SUN shared bus 5, and the functional unit whose functional unit number matches its own number, for example 1,
The number of the table memory board 110 (the number is the same as the own machine number) and the state of the rewrite permission switch mounted on the table memory board LID are sent to the NUN shared bus 5.

Step 7 The personal computer 14 of the table changer 13 is
:N Reads the table memory board number sent to the shared bus 5 and the state of the rewriting permission switch, checks whether the specified function unit 7) number and the table memory board number match, and if they do not match, displays an error, and if they match. The state of the rewriting permission switch is displayed, and if it is necessary to turn it down to allow rewriting, it is displayed.

Step 8 According to the above display, when the operator flips the rewriting permission switch to allow rewriting, the corresponding functional unit 1 then sends changed data reception permission information to the N:N shared bus 5.

Step 9 When the table changer 13 receives the change data receivable information sent to the N:N shared bus 5, the table change B
The personal computer 14 of No. 13 sends the changed data to S.
It is sent to the UN coexistence bus 5.

Step 1O When the changed data is sent to the SUN coexistence bus 5, the corresponding functional unit l-1 takes in the changed data, changes the table memory, and after the change is completed, sends the contents of the table memory to the SUN shared bus 5. do.

Step 11 The personal computer 14 of the table changer 13 takes in the contents of the table memory sent from the corresponding functional unit 1 to the NUN shared bus 5, and checks whether the change data has been correctly exchanged. This result is NO
In this case, the table change operation for that functional unit 1 is performed again.

Step 12 If the above check result is YES, the next functional unit that requires a table change, for example 2, is designated and the table change process is performed in the same manner as above.

Step 13: After the tables have been changed for all functional units 1 to 4 that require changes, the table changer 13 sends table change completion information, including NUN, to the bus 5.

Step 14 Upon receiving the table change completion information, each of the functional units 1 to 4 returns to the original NUN state.

Next, we will explain in detail the operation when refreshing tables offline.

Step 1 The personal computer 4 of the table changer 13 specifies that the table change etc. be performed offline.

Step 2 After this, the operator pulls out the function 22 that needs to be changed, for example 1 table memory board 11D, and
Insert it into section 15.

Step 3 Next, specify the functional unit number on the personal computer 14.

Step 4 When the functional unit number is specified, the CPU of the I/F section 15
Reads the table memory board number of the table memory board IID inserted and the state of the rewrite permission switch, and notifies the personal computer 14 of the table memory board number and the state of the rewrite permission switch.

Step 5 As a result, the personal computer 14 checks whether the FW-defined functional unit number and the table memory board number match, and if they do not match, displays an error message, and if they match, displays the state of the rewriting permission switch, and then If it is necessary to defeat it, it will also be displayed.

Step 6 According to the above display, when the operator tilts the rewrite permission switch to the rewrite position, the CPU of the TIF section 15 notifies the personal computer 14 of change data receivable information.

Step 7 The personal computer 14 which has received and detected the change data receivability information outputs the change data.

Step 8 Then, the CPU of the I/F section 15 receives the above change data, changes the table memory, and sends the contents of the table memory to the personal computer 14 after the change is completed.

Step 9 The personal computer 14 uses the CPU of the I/F section 15.
It takes in the contents of the table memory sent from the server, checks whether the changed data has been sent and received correctly, and displays the results.

The supervisory control device of this embodiment includes functional units 1 to 4 that require table changes etc. from a personal computer 14.
When you send table data to a functional unit 1 to 4, the corresponding functional units 1 to 4 receive the data and make changes to their own tables. This makes it extremely easy to change the tables of functional units.

Effects of the Invention According to the supervisory control device of the present invention, it is possible to extremely easily change the table of a functional unit online without removing the table memory board from the functional unit.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a block diagram showing its tit connection state, and FIGS.
Figure 5 is a block diagram showing the configuration of the table changer, Figure 5 is a block diagram of a conventional supervisory control device, Figure 6 is a detailed block diagram of the functional unit, Figure 7 is a detailed block diagram of the CPU section, and Figure 8 is a block diagram showing the configuration of the table changer. is an explanatory diagram of table memory. 1 to 4...Functional unit, 6...Operation console (input/output device), 13...Table changer, 14...Personal computer (computer device), 15...1/
F part (interface part), 5...NUN common education bus,
7...Graph ink panel (input/output device) Figure 1 Figure 2 Figure 6 Figure 7 (A) (B) (C) CD) Figure 8

Claims (1)

[Claims] a plurality of functional units that each connect input/output devices to exchange data with each other; a shared bus that connects the plurality of functional units; a computer device that stores the contents of tables of the plurality of functional units; an interface unit that connects a computer device to the shared bus; the computer device sends a functional unit number and table data that need to be changed, etc. to the shared bus through the interface unit; and the functional unit number sent out to the shared bus; A supervisory control device characterized in that a functional unit corresponding to the above receives the table data and changes its own internal table data.