JPS6284318A - Position changing system in remote supervisory control device - Google Patents

Abstract

PURPOSE:To easily make it possible to change position without technical knowledge of a microcomputer by adding an operation control interface (card), an intermediate conversion program, an execution form conversion program and an intermediate table to a microcomputer type remote supervisory control device. CONSTITUTION:ASCII character inputted in the same description with a position table 11 is converted to an intermediate table, and the converted data are reversely converted again to a display pattern. At this time, erroneous input of key inputting is checked, and in case of an error, it is reported to an operator as a command error. An execution form conversion program acts to convert from an intermediate table to a table of execution form. The execution form conversion program and intermediate table conversion program do not operate simultaneously. The former is started once only when initializing, and after converting the intermediate table to execution form table, shifts to ordinary functional process. On the other hand, the latter receives starting command by key inputting of operation control 10, and starts running by interruption from an interface 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a position change method in a remote monitoring and control device using a microcomputer.

[Conventional technology]

First, an overview of a conventional remote monitoring and control device using a microcomputer will be explained with reference to FIG. In the same figure, excluding the block S surrounded by a broken line, the rest becomes a block diagram showing an outline of the configuration of the master station side of a remote monitoring and control device using a conventional microcomputer.

In Fig. 5, 1 is a common bus of the microcomputer, 2 is a microcomputer control card (note that the card refers to a printed circuit board, so it may be referred to as a circuit; the same applies hereinafter), 3 is a microcomputer card, and 4 is a microcomputer control card. A memory card, 5 a transmission control card, 6 a modem card, 7 a line, and 8 an input/output device.

FIG. 6 shows the format of a transmission frame exchanged between the master station shown in FIG. 5 and a slave station (not shown) (which is generally unmanned) via line 7. FIG.

As seen in the figure, one cycle of cyclically transmitted information consists of a maximum of two frames, and one frame consists of 32 words.

One word consists of 44 bits, and a parity check bit P is added to detect errors in data transmission.
In addition, a reversal double-feed verification check is performed.

Each bit position constituting the data in a word is assigned to contact information of various devices on the slave station side.

Since the amount of information is 1 bit, for example, if the logic @1 is open,
Logic ""0# indicates closed. The amount of information represents the status information of which device on the slave station side is determined in advance according to the position of the information bit in the frame format, and when the information is received, the status information of the device on the slave station side is determined in advance. The display format, such as how to display it on the side (for example, whether to display it in a lit state or repeatedly blinking), etc., is determined in advance according to the position in the frame format of the information. It's decided.

In this way, not only the display format but also the processing contents are predefined in accordance with the position within the frame format of the 1-bit information, and a table that summarizes this is called a position table. . The master station side has this position table, and the execution format data corresponding to the position table is stored in the main memory (memory card 4) of the microcomputer card 3.
In accordance with this information, the master station executes processing such as displaying the 1-bit information received from the slave station in a predetermined display format.

The present invention relates to a method for changing executable format data when such a position table is changed for some reason.

Now, the method of changing the executable format data by changing the position in the conventional microcomputer-based remote monitoring and control device (that is, the position changing method) has been carried out by the method described below with reference to FIG. 7.

FIG. 7 is an explanatory diagram showing a conventional position changing method. In the figure, 11 is a position table, 12 is an external input medium such as a card or floppy disk, and 13 is a support tool, which is a tool for converting data obtained from the external input medium 12 into executable data. 14 is an auxiliary storage (storing executable format data); 16 is an executable format data list; and 15 is a memory card.

As shown in the figure, when the execution format data is changed due to a position change, (1) the content of the change in the position table 11 is confirmed.

(2) After transferring the changed content to the external input medium 12, use the support tool 13 to convert it into executable data.

This work is called coding work, and must be performed with due consideration to the microcomputer software.

(2) After storing the converted executable format data in the auxiliary memory 14 (for example, paper tape), the auxiliary memory is used to write directly to the memory 15 of the microcomputer to complete the change operation.

In addition, at this time, the conversion data list 16 output from the support tool 15 is compared with the changed content of the position error 11, and if the match is confirmed and OK, it is output to the auxiliary memory (paper tape) 14. do.

In the conventional position change method described above, the work in (■) can be done by anyone who is familiar with the person in the position of the remote monitoring and control device, but the work in (2) and (4) can be done by the designer or the microcomputer hardware. This work can only be done by someone who is familiar with the software. Furthermore, since the task of changing executable format data is complicated, it is easy to make mistakes, and if a mistake is made, the function of the device may stop.

As described above, the conventional position changing method has the disadvantage that it is difficult to implement, requires specialized knowledge, and can only be performed by a limited number of people.

[Problem that the invention seeks to solve]

Therefore, the present invention aims to improve the position change method in a remote monitoring and control device using a microcomputer to a method that can be easily executed by ordinary people without special specialized knowledge. There is. Therefore, an object of the present invention is to provide a position change method in a remote monitoring and control device that enables the above-mentioned operations.

Means and operation for solving problem C] In order to achieve the above object, the present invention provides a translation function using software for converting data into executable format data in a conventional remote monitoring and control device using a microcomputer. By adding an operator interface function (based on hardware and software) for human operation, position changes can be performed even by ordinary people without specialized knowledge of microcomputers.

In addition, by adding a function to prevent erroneous input by the operator (ordinary person performing the work), erroneous input of executable format data is prevented (using software), and the maintainability of the remote monitoring and control device is also improved.

Furthermore, the adjustment cost for each application is reduced to the cost of inputting the required change data using the same description method as the position table, thereby creating the advantage of mass production.

The present invention is realized by adding the following functions to a conventional remote monitoring and control device using a microcomputer.

B) An executable format conversion program (put program) that converts the intermediate table to executable format data, which will be explained later. Conversion program, i.e., intermediate table conversion program 2) Hardware that transfers the opcon input to the memory and outputs the transferred content to the display as screen data (displays the description of the position table) [Example] Next, refer to the diagram. An embodiment of the present invention will now be described.

FIG. 1 is a system explanatory diagram of an embodiment of the present invention.

As shown in the figure, there is a position table 11, and when a position change is made to it, the opcon 10
After specifying a position change for , the position is changed using the same description as in the position table 11. Then, the execution format data is automatically changed in the program mode and written into the memory (main memory) 15.

It should be understood that according to the present invention, even a general person can easily perform the position change method.

FIG. 5 shows an example of the hardware configuration of an embodiment of the present invention. As can be seen from the figure, compared to the conventional remote monitoring and control device using a microcomputer, the operator console interface (card) 9, operation controller 10, and cable 13
(hereinafter, these additional parts S will be referred to as the opcon part).

The operation controller S belongs to the intermediate table conversion program when changing the position, converts the change key data inputted on the console into ASCII character data 11, and transfers it onto the main memory (memory card 4). The transfer method at this time is a DMA (direct memory access) method. Further, as for character data, after pressing the return key, all previous characters are transferred to the main memory.

The operation controller section S has a display section built into the operation controller 10, and is configured to display position change input and converted data after the change as screen data 12. The display pattern is also stored in the main memory, and the operation controller S performs DMA transfer and displays it on the built-in display.

This display pattern is edited using an intermediate table conversion program, and upon completion, a screen output flag is set in the main memory and notified to the operation control section S.

The operation controller S looks at the output flag, takes in the display pattern by DMA transfer, and then displays it on the display. After the display is completed, the screen output flag is cleared by the operation controller S, but the display pattern is not rewritten on the program side while the output flag is set.

In the embodiment of the present invention, the opcon interface 9 and the opcon 10 are connected by a cable 13, and data is exchanged using 8-bit asynchronous serial data of 19.2 KBPS.

Next, an overview of the software used in the present invention will be described.

First, the intermediate table conversion program will be explained. The ASCII characters input with the same description as the position table are converted into an intermediate table, and the converted data is once again converted back into a display pattern. At this time, the key input is checked for erroneous manual input, and if there is an error, the operator is notified as a command error.

Here, the intermediate table is a table that encodes the description format of each position, and is created for each position.
Each element is made to correspond to a code.

Next, the executable format conversion program will be explained.

This program converts an intermediate table into an executable format table, reading and converting only the tables necessary for the executable format.

Next, the flow of the software will be explained with reference to Figure 2◇
Note that FIG. 2 is a state transition diagram in a remote monitoring and control device as an embodiment of the present invention.

In Figure 2, ■ is an executable format conversion program, ■ is initial processing, ■ is functional processing of a remote device (slave station), ■ is an intermediate table conversion program, ■ is an intermediate table, ■ is an executable format table (data), 9 is opcon interface, 10d opcon, MIU key camera memory 2
is the display memory, ■ is the startup interrupt, and @ is the initial startup.

Now, the executable format conversion program ■ and the intermediate table conversion program ■ do not run at the same time; the former belongs to the program that controls the functions of the remote monitoring and control device, and is started only once by initial start @ to execute the intermediate table ■. After converting to the format table ■, proceed to initial processing ■ and then to normal functional processing ■.

10,000 The latter intermediate table conversion program (2) receives a start command from the key input of the operation controller 10, and starts running when an interrupt (startup interrupt (2)) is received from the operation controller interface 9.

In this state, the functions (normal processing functions) of the remote monitoring and control device are turned off and communication with the operational computer 10 is performed.

With the combination of hardware and software as described above, it has become possible to easily change the executable format data by changing the position by manually operating keys from the operational computer section using the same description format as the position table.

Figure 3 shows an example of the display in the operation controller section (
240 characters).

It should be noted that in the figure, the same display as the description formula of the position table is made.

In addition, the dotted line part in the same figure shows the key manual force possible range (position change range).

〔Effect of the invention〕

The present invention adds an intermediate table to a conventional microcomputer-type remote monitoring and control device, an operation computer interface (cart), a 41m table conversion program, an executable format conversion program, and an intermediate table. This has the advantage that anyone who knows the position table can make changes since it can be changed without requiring any technical knowledge.

Furthermore, since the intermediate table conversion program is designed to prevent erroneous input when inputting the operational controller, maintainability of the remote monitoring and control device can be improved.

Furthermore, by storing the intermediate table in an external auxiliary storage device (such as a floppy disk), the present invention can be applied to a large-scale centralized monitoring and control center.

The one adopted this time has one route (for one slave station) on the main memory.
Since only minutes are included, the above-mentioned usage method can also be considered. Furthermore, by allocating auxiliary memory and the like to a host computer, it is possible to automatically change the position of the remote monitoring and control device from the computer. However, a computer interface section is required instead of the opcon section.

FIG. 4(a) shows a graph of the cost versus the number of units shipped in the case of the conventional technique, and FIG. 4(b-) shows the graph of the cost in the case of the present invention. It will be recognized that as the number of units shipped increases, the application cost (software cost) decreases significantly in the case of the present invention, whereas it does not decrease depending on the conventional technology.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a method according to an embodiment of the present invention, FIG. 2 is a state transition diagram in a remote monitoring and control device as an embodiment of the present invention, and FIG. 3 is an explanatory diagram of an example of a display of an operation controller section. Fig. 4 is a cost comparison diagram between the present invention and the conventional one, Fig. 5 is a block diagram showing the hardware configuration of an embodiment of the present invention, and Fig. 6 is a transmission frame format used in a remote monitoring control device. FIG. 7 is an explanatory diagram showing a conventional position y changing method. Code explanation 1... Microcomputer common bus, 2... Microcomputer control card, 3... Microcomputer card, 4.
... Memory card, 5 ... Transmission control card, 6 ... Modem card, 7 ... Line, 8 ... I10 device, 9. ...Operator console interface (cart), 10...
...Operation system, 11...Key human power character, 12...Screen data Representative Patent attorney Akio Namiki Representative Patent attorney Kiyodai Matsuzaki 1 Figure 2 WJ llI4511 To Izukaji Figure 86: At the end of the festival, there is 1 treasure and 1 length.

Claims (1)

[Claims] 1) A position table in which information bit positions in a transmission format and information processing contents corresponding to the positions are defined in advance and summarized in a table, and execution format data corresponding to the position table is stored in the main memory. and an operator console for inputting the changed data when the execution format data is changed due to the change of the position table, and an intermediate table conversion system. program, and an executable format conversion program, and when changing executable format data due to a change in the position table, by starting the intermediate table conversion program from the console via an interface, the change can be performed from the console. An intermediate table is created by encoding the key data input in the same description format as the position table and preventing erroneous input, and then the created intermediate table is created according to the executable format conversion program that is started at the time of initialization. 1. A position change method in a remote monitoring and control device, characterized in that by converting data into an execution format table, changed execution format data is stored in main memory.