JPH0593634A - Command converter - Google Patents

Abstract

PURPOSE:To convert a standardized control command into a control command matching each measuring instrument. CONSTITUTION:A conversion confirming part 12 receives the control command from a computer 2 through a buffer 11 and confirms whether the command is the already converted command or not in reference to a processed-command storing part 13. In the case of the converted control command, the converted command is read out of the processed-command storing part 13 and sends the command into an applicable measuring instrument 3 through a buffer 14. In the case of the control command which is not converted, a conversion controlling part 15 reads the command for the applicable measuring instrument out of a command library 16 and transfers the command into a command storing part 17. A command converting part 18 executes the command conversion based on the command data in the command storing part 17. The converted command is made to correspond to the control command and registered into the processedcommand storing part 13. The converted command is sent into the measuring instrument through the buffer 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a command converter, and more particularly to a command converter for converting a standardized control command sent from a computer into a command for each measuring device when the measuring device is controlled by the computer.

[0002]

2. Description of the Related Art Generally, a command of the GPIB standard (hereinafter referred to as a command) is used for various measuring instruments controlled by a computer. However, since the commands used are different for each maker or for each model, a control program is created for each measuring device.

[0003]

As described above, in the related art, since the command is different for each measuring device, there are the following problems. (1) Since a control program is required for each measuring device, it takes time to create the program. (2) Even with the same type of measuring instrument, the control program cannot be used if the format and manufacturer are different. (3) It is necessary to change the control program for each measuring instrument used. (4) In an automatic inspection system or the like, if the same measuring instrument cannot be prepared, the system will stop in the case of a failure of the measuring instrument being used or periodic calibration.

An object of the present invention is to provide a command converter for converting standardized control commands into commands suitable for each measuring instrument.

[0005]

A command converter according to the present invention is a command converter for converting a standardized standard control command into a control command for each measuring device.
A command library for predictively storing a control command for each measuring device, a conversion unit for reading data from the command library and converting the standard control command into a control command for each measuring device, and the conversion unit. Processed command storage means for storing the converted control command in association with the standard control command;
And a means for collating the processed command storage means when the standard control command is received, and for reading out and transmitting a corresponding control command from the processed command storage means when the conversion processing has already been performed. Has been done.

[0006]

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. A command converter 1 is connected to a computer 2 by a cable 4 and a plurality of measuring instruments 3 by a cable 5. The command converter 1 is a standardized control command sent from the computer 2 (hereinafter referred to as a standard control command).
And convert it into a command that is compatible with the controlled instrument. Further, it receives the measurement data sent from the plurality of measuring devices 3 and converts it into the data in the standard format required by the computer 2.

The operation of the command converter 1 will be described below.

The standard control command from the computer 2 is first stored in the buffer 11 and then sent to the conversion processing confirmation unit 12. The conversion processing confirmation unit 12 confirms whether the standard control command is a command that has already been converted. This confirmation is performed by collating the processed command storage unit 13. In the processed command storage unit 13, the command which has been once converted is stored together with the corresponding standard control command.

If the standard control command has already been converted, the converted command is read from the processed command storage 13 and sent to the corresponding measuring instrument via the buffer 14.

Further, in the case of a standard control command which has not been converted, the conversion process confirmation section 12 sends the standard control command to the conversion control section 15. The conversion control unit 15 sends the command of the corresponding measuring device stored in the command library 16 according to the measuring device identification code to the command storage unit 1.
Transfer to 7. After that, the command conversion processing unit 18 is controlled to execute the command conversion processing based on the command data stored in the command storage unit 17.

The command conversion processing unit 18 registers the converted command and the standard control command in the processed command storage unit 13 in association with each other, and sends the converted command to the corresponding measuring instrument via the buffer 14. To do.

On the other hand, the measurement data from the measuring device is stored in the buffer 14 and then sent to the command conversion processing unit 18 to be converted into a format designated in advance, and then the computer 2 via the buffer 11. Sent to.

[0014]

As described above, according to the present invention, the command library is provided to previously store the command for each measuring device, and the standard control command sent from the computer is applied to the corresponding measuring device. Command, the converted command and the standard control command are registered in correspondence, and when the standard control command is received, it is confirmed whether the command has already been converted and the conversion process is executed. If it has already been completed, the following effects can be obtained by reading the registered command and sending it to the corresponding measuring device. (1) Since the command already registered is used as it is for the once converted control command, the command conversion process can be executed in a short time. (2) Since the control program can be standardized, it is not necessary to prepare a control program for each measuring device, and the efficiency of program development can be improved. (3) Maintainability is remarkably improved because there is no restriction on measuring equipment.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Command Converter 2 Computer 3 Measuring Instrument 12 Conversion Processing Confirmation Section 13 Processed Command Storage Section 15 Conversion Control Section 16 Command Library 17 Command Storage Section 18 Command Conversion Processing Section

Claims (1)

[Claims] 1. A command converter for converting a standardized standard control command into a control command for each measuring device, which stores a control command for each measuring device in advance, and a command library from the command library. Conversion means for reading the data and converting the standard control command into a control command for each measuring device; and a processed command storage means for storing the control command converted by the conversion means in association with the standard control command. A means for collating the processed command storage means when the standard control command is received, and for reading out a corresponding control command from the processed command storage means and transmitting the converted control command when the conversion processing has already been performed. A command converter featuring.