JPH04168843A - Communication protocol revision equipment - Google Patents

Abstract

PURPOSE:To revise a communication protocol without stopping other lines by entering a name of line and a name of the communication protocol and stopping only a relevant line so as to revise a communication control parameter table, a communication line parameter table and a code conversion table. CONSTITUTION:When a computer connecting to a line is revised due to line changeover or the like resulting in revising its communication protocol, a parameter input device 1 is used to enter a name of line 22 and a communication protocol 23. A communication protocol revision means 3 obtains a communication line parameter 33 corresponding to the given communication protocol 23 from a parameter reference table 31 based on a relevant entry of a parameter table 11 and stores the result to a communication line parameter table 11 in a communication equipment 16. Moreover, the means 3 stores a code conversion table provided in a communication parameter file 4 to a code conversion table 12 in the communication equipment 16 based on a code conversion table name 34 corresponding to the relevant line obtained from the parameter reference table.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication procedure changing device, and more particularly to a device that controls communication procedures using a communication control parameter table 9, a communication line parameter table, and a code conversion table.

[Conventional technology]

To change the conventional communication procedure, as shown in FIG. 7, the communication parameters are input from the parameter changing means 731, the communication parameter file 741, and the communication parameter file 74, and the communication line parameter table 80.degree. code conversion table 81. and initialization means 75 for setting the communication control parameter table 76. The message processing means 77 selects a communication procedure from the communication control parameter table 76 by activating the message processing means 77 and starts the communication procedure control means 79 A communication procedure identification means 782 obtains the message and the communication line name from the communication procedure control means 79 Communication line parameter table 80 and code conversion table 81 for the corresponding line
In the communication line control means 82 that controls the line based on the information of the initialization means 7 when the communication control means 71 is started.
5 inputs communication parameters from the communication parameter file 74 and creates a communication line parameter table 80.5. Code conversion table 81
゜ and communication control parameter table 76 are set, and control is passed to message processing means 77. The message processing means 77 passes the line name, message buffer address, and message length to the communication procedure identification means 78. The communication procedure identifying means refers to the communication parameter table 76, selects and starts the communication procedure control means 79. Communication procedure control means 79 exists for each communication procedure. The communication procedure control means 79 communicates with the remote computer by notifying the communication line control means 82 of a communication request while referring to the communication control parameter table 76. Here, when a computer in a remote location is changed due to line switching or the like, the communication procedure may change. At this time, all lines connected to the communication line 82 are stopped, the communication control means 7e is stopped, the communication parameters on the communication parameter file 74 are changed by the parameter changing means 73, and the communication control means 71 is started. The method was to do so.

[Problem to be solved by the invention]

In conventional communication procedure changing devices, it is necessary to stop the communication procedure control means every time there is a change in the communication procedure of a certain line, and at this time, all lines connected to the communication line control means become unusable. There were drawbacks.

[Means to solve the problem]

The communication procedure changing device of the present invention includes a communication procedure identifying means for selecting and activating a communication procedure control means based on a communication request from a message processing means and a communication control parameter table, and a communication procedure control means for controlling a message of a communication line according to the communication procedure. and a communication line control means that is located in the communication device and controls the communication line using a communication line parameter table and a code conversion table for each line, a parameter input device, a parameter input means, and an input parameter. A parameter correspondence table that correlates communication procedure information, a communication line parameter table by interpreting input parameters and referring to the parameter correspondence table,
It has a code conversion table and communication procedure changing means for changing communication control parameters.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is an example of a display on a parameter input device, Fig. 3 is an example of a parameter correspondence table, Fig. 4 is an example of a communication line parameter table, and Fig. 5 is an example of a parameter correspondence table. The figure shows an example of a code change table, and FIG. 6 shows an example of communication control parameters.

In FIG. 1, one embodiment of the present invention includes a communication device 16 connected to a communication line 14, a communication control means 15 for controlling the same, a parameter input device 1 for supplying parameters to the communication control means 15, and a communication parameter input device 1 for supplying parameters to the communication control means 15. The communication control means 15 includes a communication procedure identification means 17 for identifying a communication procedure based on the communication request from the message processing means 6 and the communication control parameter table 5, and a communication procedure identification means 17 for controlling the message of the communication line 14 according to the communication procedure. The communication device 16 has a communication line control means 13 that controls the communication line using a communication line parameter table 11 and a code conversion table 12 for each line.
parameter input means 2 for inputting parameters from;
A parameter correspondence table 9 that associates input parameters with communication procedure information, and a communication line parameter table 11 by interpreting input parameters and referring to the parameter correspondence table. Code conversion table 12. and a communication procedure changing means 13 for changing the communication control parameter table 5, inputs a line name and a communication procedure name from the parameter input device by the parameter input means 2, passes the parameters to the communication procedure changing means 13, Communication line parameter table 11 corresponding to this line name. The communication procedure is changed by changing the code conversion table 12° and the communication control parameter table 5.

Communication control parameter table 5 has entries in the format shown in FIG. 6 for the number of lines, communication line parameter table 11 has entries in the format shown in FIG. 4 for the number of lines, and code conversion table 12 has entries in the format shown in FIG. 5 for the number of lines. It has entries in formats like this for several types of code conversion tables. When the communication control means 15 is activated, control is first transferred to the initialization means 10. The initialization means 10 reads communication control parameters 61 as shown in FIG. 6 as communication parameters from the communication parameter file 4 and stores them in the communication control parameter table 5. Further, the communication line parameters 41 are read from the communication parameter file 9 and the communication device 1
6 is stored in the communication line parameter table 11. A code conversion table 51 as shown in FIG. 5 and a communication line parameter table 41 as shown in FIG. 4 are read from the communication parameter file 4 and stored in the communication line parameter table 11 in the communication device 16. The data is stored from the communication parameter file 4 into a code conversion table 12 and a communication line parameter table 11 as shown in FIG. The initialization means 10 passes control to the message processing means 6.

Although not shown in the figure, the message processing means 6 identifies the other party's line when it receives a communication request from a message creation means, etc.
The message buffer address and message length are set in the line entry in the communication control parameter table 5, and control is passed to the communication procedure identifying means 7. The communication procedure identification means 7 looks at the corresponding entry in the communication control parameter table 5, obtains the line name 8 and the communication procedure name, and issues a communication request to the communication line control means 13 in order to execute the communication procedure for the corresponding line. In this case, the line name.

The message buffer address and message length are determined by the communication line control means 13.
give it to The communication line control means 13 uses the communication line parameter table 11. A message is sent to or received from the communication line by looking at the code conversion table 12.

Here, when a computer connected to a certain line is changed due to line switching or the like and the communication procedure is changed, the communication procedure can be changed as shown below. The line name 22 and communication procedure 23 are input from the parameter input device 1. The parameter input means 2 sets the status 66 of the communication control parameter table 5 to "procedure switching" and inputs the line name 2.
2. Obtain the communication procedure name 23 from the parameter input device and check the validity of the line name and communication procedure. If there is an error, an error message is displayed on the parameter input device 1.

If there is no error, the line name 221 and communication procedure name 23 are passed to the communication procedure changing means 3. The communication procedure changing means 3 obtains the communication line parameter 33 corresponding to the passed communication procedure name 23 from the parameter correspondence table 31 for the corresponding entry in the communication line parameter table 11, and changes it to the communication line parameter table 11 in the communication device 16. Store in. . Further, based on the code conversion table name 34 corresponding to the corresponding line obtained from the parameter correspondence table, the code conversion table held in the communication parameter file 4 is stored in the code conversion table 12 in the communication device 16. After the above processing is completed, the communication procedure changing means 3 sets the status θ6 of the communication control parameter table 5 to "procedure - switching complete". This enables communication on the line.

〔Effect of the invention〕

As explained above, the present invention inputs a line name and a communication procedure name from a parameter input device using a parameter input means, and stops only the line using a communication procedure changing means. Since the table is changed, the communication procedure can be changed without stopping other lines connected to the communication line control means.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing an example of display on a parameter input device, FIG. 3 is a diagram showing a parameter correspondence table, and FIG. 4 is a diagram showing a communication line parameter table. 5 is a diagram showing a code conversion table, FIG. 6 is a diagram showing communication control parameters, and FIG. 7 is a block diagram showing a conventional embodiment. DESCRIPTION OF SYMBOLS 1... Parameter input device, 2... Parameter input means, 3... Communication procedure changing means, 4... Communication parameter file, 5... Communication control parameter table, 6...
- Message processing means, 7...Communication procedure identification means, 8...
Communication procedure control means, 9...parameter correspondence table, 1o.
...Initialization means, 11...Communication line parameter table, 1
2... Code conversion table, 13... Communication line control means,
14... Communication line, 15... Communication control means, 16.
...Communication device, 21...Display example on parameter input device, 22...Line name, 23...Communication procedure name, 24.
...Operation guide, 231...Parameter correspondence table, 32
... Communication procedure name, 33 ... Communication line parameters, 3
4... Code conversion table name, 41... Communication line parameter table, 42... Line name, 43-... Line control information, 4
4... Synchronization character, 45... Timeout value, 46.
...Code conversion table name, 41...Code conversion table, 61.
・・Communication control parameter table, 42−・Line name, 43・
...Communication procedure name, 64...Message buffer address, 6
5... Message length, 86... Status, 67... Additional information, 71... Communication control means, 72... Communication device, 73... Communication parameter file, 74... Parameter changing means , 75... Initialization means, 78... Communication control parameter table, 77... Message processing means, 78.
... Communication procedure identification means, 79... Communication procedure control means,
80... Communication line parameter table, 81... Code conversion table, 82... Communication line control means, 83... Communication line.

Claims (1)

[Claims] A communication procedure identification means for identifying a communication procedure based on a communication request from a message processing means and a communication control parameter table; a communication procedure control means for controlling messages on a communication line according to the communication procedure; In a system having a communication line control means for controlling a communication line using a line parameter table and a code change table, a parameter input device, a parameter input means, a parameter correspondence table for associating input parameters with communication procedure information, and an input and communication procedure changing means that interprets the parameters and changes the communication line parameter table, code change table, and communication control parameter table by referring to the parameter correspondence table, and converts the line name and communication procedure name from the parameter input device into parameters. The communication procedure is changed by inputting the parameters using the input means, passing the parameters to the communication procedure changing means, and changing the communication line parameter table, code change table, and communication control parameter table corresponding to the line name. communication procedure change device.