JPH05250496A - System for rewriting operation information - Google Patents

Abstract

PURPOSE:To provide the system capable of rewriting operational information without stopping the entire system by providing a table switching means using the operational information on a second operational table as operational information for collecting data to be collected. CONSTITUTION:A first operational table 8 is used for the normal collecting processing of data to be collected by means of a communication controller. When the operational information is to be changed in collecting the data to be collected, an operational information register means 14 registers new operational information in a second operational table 10 and in a switching display register area 12. When a switching display is registered in the area 12, the operational information to be used for collecting control shall be the operational information on the second operational table 10 by means of a table switching means 16. Thus, the processing to be collected automatically use the operational information of the second operational table 10 as the operational information. It is necessary that the communication controlling device is stopped for switching the operational information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation information rewriting method using operation table switching. 2. Description of the Related Art Conventionally, a communication control device has been used which transmits collected data obtained by collecting collected data from a collected data device or terminal to a center device. The operation information in the operation table is used to control the collection of the collected data in the communication control device, but the operation information registered in the operation table is not constant, and the operation information changes as the configuration of the collected data system changes. Also needs to match it.

[0002]

2. Description of the Related Art A conventional communication control device is constructed as shown in FIG. In FIG. 7, 30 is a digital input device and 32 is an analog input device.
0 and 32 are connected to the bus 34. Collected data equipment or terminal 20 connected to the data input device 30
_i (i = 1, 2, ..., N) outputs contact information of a relay or the like. The analog input device 32 is a collected data device or terminal that outputs analog voltage, current, and the like. Further, a processor 36, a memory 37, a ROM 38, and a parallel-serial conversion device 40 are connected to the bus 34. The memory 37 stores a program used for controlling collection of collected data. ROM38
Operation information is registered in. Parallel-serial converter 40
Is connected to a center device 46 via a communication line 42 and a serial / parallel converter 44.

The collection and transmission of the collected data of the communication control device having this configuration to the center device 46 was as follows. In collecting the collected data from the collected data device or terminal, the processor 36 executes the program stored in the memory 37 and refers to the operation information registered in the ROM 38 to refer to the collected data device or terminal. The data to be collected is periodically or irregularly collected from the device and transmitted to the parallel / serial converter 40 and the serial / parallel converter 44 via the communication line 42, and is taken in by the center device 46 and collected. It is used for the use of data.

Unless the configurations of the plurality of collected data devices or terminals are changed, the operation information used for collecting the collected data is not changed, and the collection of collected data is controlled by the program of the processor 36. The data to be collected is collected through the collection process according to the procedure.

However, if there is a change in the configuration of the plurality of collected data devices or terminals, it is necessary to change the operation information used to control the collection of the collected data of these collected data devices or terminals. The change of the operation information is the conventional R
The operation information of the ROM 38 is rewritten using an OM writer, or the operation information of the RAM corresponding to the ROM 38 is rewritten from a personal computer through a serial adapter.

[0006]

As described above, when the operation information is changed, the system is rewritten by either rewriting by the ROM writer or rewriting the operation information by the personal computer (see FIG. 8). Sometimes you need to stop. This system stop also stops the transmission processing of the collected data that occurs during the stop period, and depending on the collected data, the function of the entire system deteriorates, which is not desirable.

The present invention was created in view of the above technical problem, and an object thereof is to provide an operation information rewriting method capable of achieving operation information rewriting without the need to stop the system. And

[0008]

FIG. 1 shows a principle block diagram of the invention according to claim 1 and claim 2. As shown in FIG. 1, the invention according to claim 1 collects collected data generated by a plurality of collected data output devices 2 _i (i = 1, 2, ... Collecting control unit 4
In the communication control device for transmitting to the collected data receiving device 6, the first operation table 8 for registering the current operation information and the second operation table 10 for registering the spare operation information are switched. While the collected data is being collected using the display registration area 12 and the operation information of the first operation table 8, the operation information newly used is registered in the second operation table 10, and When the operation information registration means 14 for registering the display in the switching display registration area 12 and referring to the switching display registration area 12 after entering the collection of collected data, if the switching display has been registered, the collected data of the collected data is displayed. Table switching means 16 for using the operation information of the second operation table 10 as the operation information used for collection control is provided.

According to the second aspect of the invention, as shown in FIG. 1, in the operation information rewriting method according to the first aspect, different start addresses are used for accessing the first and second operation tables 8 and 10. Is used.

[0010]

In the invention according to claim 1, the normal collection processing of the collected data by the communication control device is performed using the first operation table 8.

If the operation information is changed during the collection of the collected data, the operation information registration means 14 registers the newly used operation information in the second operation table 10 and displays the display. The switching display registration area 12 is registered.

When the switching display registration area 12 is referred to when the collected data is collected and the switching display is registered, the operation information used for controlling the collection of the collected data is the second information by the table switching means 16. The operation information of the operation table 10 of FIG.

Therefore, in the collection processing of the collected data, the operation information of the second operation table 10 is automatically used as the operation information. It is not necessary to stop the communication control device to switch the operation information. Helps improve system reliability.

[0014]

FIG. 2 shows a first embodiment of the present invention. Figure 2
7, the processor 36 is provided in the communication control device shown in FIG. 7, and therefore the processor 36 shown in FIG.
The same reference number is used. Reference numeral 51 is a memory (RAM), 52 is a serial adapter, and these are connected to the bus 34. A display device 53 is connected to the serial adapter 52. The other configuration of the communication control device in the present invention is the same as the configuration of FIG. 7. These components are not shown in FIG.

A program for executing the processing flow shown in FIG. 4 is stored in the memory 51 together with a conventional program for collecting collected data and controlling transmission of the collected data to the center device. A working table 54 and a spare table 55 shown in FIG. 5 are provided, and a table change flag area 58 (not shown) is also provided. Different starting addresses are assigned to the working table 54 and the spare table 55. The start address is stored in the operation table start address storage area 56 (see 56 in FIG. 6). Further, "0" or "1" is set in the table change flag area 58. “0” in the table change flag area indicates that there is no change in the table, and “1” in the table change flag area indicates that there is a change in the table.

In FIGS. 2 and 4 to 6, the data devices to be collected to the terminals 20 _i (i = 1, 2, ..., N) are
Collected data output device 2 _i (i = 1, 2, ...) Of FIG.
n), the processor 36 corresponds to the collection control unit 4 of FIG.
Corresponding to. The center device 46 corresponds to the collected data receiving device 6 of FIG. 1, and the active table 54 corresponds to the first operation table 8 of FIG. The spare table 55 is shown in FIG.
2 corresponds to the second operation table 10. The table change flag area 58 corresponds to the switching display registration area 12 of FIG. 1, and the processor 36, the serial adapter 52, and the display device 53 correspond to the operation information registration means 14 of FIG. The operation table top address storage area 56, the processor 36, and step S6 of FIG. 4 correspond to the table switching means 16 of FIG.

The operation of the communication control device having this configuration will be described below. For convenience of explanation, the communication control device uses the active table 54 for collecting the collected data from the collected data device or terminal, and the start address thereof is, for example, 30
It shall be set to 00. The start address is stored in the current table start address storage area 56.

When the collection process is started, it is first determined whether or not there is a table change (see S1 in FIG. 4). The table change flag is referred to at this time, but since the table change flag is not set, the start address 3 from the current table start address storage area 56 is referred to.
000 is read (see S2 in FIG. 4). The head table is indexed at the head address, the operation information registered therein is read, and the collected data is collected from the collected data device or terminal corresponding to the operation information (see S2 in FIG. 4). Also, the index address of the active table 54 is advanced by one. Thereafter, in the same manner, the collected data for each index address is collected, and the index information is advanced by one, and the operation information corresponding to the index address is read, and the collected information corresponding to the operation information is collected. Collection processing of collection data is performed from the data device or terminal (see S3, S4, ..., SN in FIG. 4).

The collection process as described above is performed by the active table 5
As long as the operation information of No. 4 is not changed, the collected information is collected using the operation information, and the collected data is transmitted to the center device in the same manner as in the conventional case.

In the meantime, in the communication control device,
When the operation information in the operation table needs to be changed, at that time, the operation information to be changed is written in the spare table independently of the collection processing of the collected data. It is assumed that the start address of the spare table 55 is predetermined as 5000, for example. The writing of the new operation information to the spare table 55 is performed from the keyboard of the display device 53. When this writing is performed, "1" is set in the table change flag registration area 58 of the memory 51.

When the process of collecting the collected data from the collected data device or terminal using the above-mentioned active table 54 has been completed, the process of step S1 is started again. At this time, when the table change flag area of the memory 51 is indexed, "1" is set therein (see FIG. 4).
Of S1), the head address 5000 is stored in the operation table head address storage area 56 instead of the head address 3000 stored in the operation table head address storage area 56.

Therefore, by referring to the operation table top address storage area 56 when there is a change in the table, the spare table 55 is used as a working table instead of the working table 54 to collect data from the collected data devices or terminals. Used.

Therefore, even if the operation information is changed, the collection processing of the collected data from the collected data device or terminal can be continued without stopping the communication control device. The influence on the collected data processing system caused by the stop of the collecting process can be eliminated.

FIG. 3 shows another embodiment of the present invention. This embodiment is characterized in that the spare table in the memory 51 is rewritten from a remote place. The means are the parallel / serial converter 62, the communication line 63, the serial / parallel converter 64, and the center device 65. The other components are the same as those of the communication control device shown in FIG. 2, and thus detailed description thereof will be omitted.

In FIGS. 3 and 4 to 7, the collected data devices or terminals 20 _i (i = 1, 2, ..., N) are
Collected data output device 2 _i (i = 1, 2, ...) Of FIG.
n), the processor 36 corresponds to the collection control unit 4 of FIG.
Corresponding to. The center device 46 corresponds to the collected data receiving device 6 of FIG. 1, and the active table 54 corresponds to the first operation table 8 of FIG. The spare table 55 is shown in FIG.
2 corresponds to the second operation table 10. The operation table top address storage area 56 corresponds to the switching display registration area 12 of FIG. 1, and includes the processor 36 and the parallel-serial conversion device 6.
2, communication line 63, serial-parallel converter 64, center device 6
5 and the display device 53 correspond to the operation information registration means 14 of FIG. The operation table top address storage area 56, the processor 36, and step S6 of FIG.
It corresponds to the table switching means 16 of FIG.

The operation is the same as that described in the communication control device shown in FIG. 2 except that the remote control is performed by the remote control component. The effect is also the same.

[0027]

As described above, according to the present invention, the collected data can be collected without stopping the collection processing of the collected data from the collected data device or terminal. Therefore, it helps improve the reliability of the system.

[Brief description of drawings]

FIG. 1 is a principle block diagram of an invention according to claim 1 and claim 2;

FIG. 2 is a diagram showing a first embodiment of the invention according to claim 1 and claim 2;

FIG. 3 is a diagram showing a second embodiment of the invention according to claim 1 and claim 2;

FIG. 4 is a diagram showing a processing flow of the invention according to claim 1 and claim 2;

FIG. 5 is a configuration diagram of an operation table.

FIG. 6 is a diagram showing an operation table top address storage area.

FIG. 7 is a block diagram of a conventional communication control device.

FIG. 8 is a diagram showing a conventional operation table changing method.

[Explanation of symbols]

2 _i (i = 1, 2, ... N) Collected data output device 4 Collection control unit 6 Collected data receiving device 8 First operation table 10 Second operation table 12 Switching display registration area 14 Operation information registration Means 16 Table switching means 36 Processor 51 Memory 52 Serial adapter 53 Display device 62 Parallel-serial converter 63 Communication line 64 Serial-parallel converter 65 Center device

Claims (2)

[Claims] 1. A plurality of collected data output devices (2 _i )
Communication in which the collection control unit (4) uses the operation information of the operation table to collect the collected data generated in (i = 1, 2, ... N) and transmits it to the collected data receiving device (6). In the control device, the first operation table (8) for registering the current operation information
And a second operation table (10) for registering spare operation information
While the collection target data is being collected by using the switching display registration area (12) and the operation information of the first operation table (8), the operation information newly used is changed to the second operation. The display is registered in the table (10), and the display is registered in the switching display registration area (12).
The operation information registering means (14) to be registered in and the collection display of the collected data, and when the switching display registration area (12) is referred to, if the switching display is registered, the operation used for collecting data collection control. An operation information rewriting method comprising: a table switching means (16) for using the operation information of the second operation table (10) as information. 2. The operation information rewriting method according to claim 1, wherein the first and second operation tables (8), (1)
Operation information rewriting method characterized in that different starting addresses are used to access each of the above (0).