JPH04246754A - Peripheral equipment identification system - Google Patents

Abstract

PURPOSE:To eliminate the need of converting the data by taking a peripheral equipment into consideration at the time of generating a user program, and also, to construct the system without being limited by a communication protocol of the respective peripheral equipments. CONSTITUTION:Each peripheral equipment is provided with a communication protocol informing device 12 for sending out the respective communication protocols to a central processor 1. The central processor 1 discriminates the communication protocol offered from the peripheral equipment by an automatic peripheral equipment discriminating program 8, and registers it in a communication protocol store table of a registering destination. A conversion data file 11 stores information required for data conversion, utilizes conversion data read out of the conversion data file 11 in accordance with the contents designated by the communication protocol store table 10 with respect to a desired peripheral equipment referred to by a user program 7, and executes a conversion processing by a data conversion table 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peripheral device identification method, and more particularly to a peripheral device identification method for an information processing system in which a central processing unit and a plurality of peripheral devices are connected and operated.

0002

2. Description of the Related Art Conventionally, when connecting a central processing unit and a central processing unit in an information processing system, data communication regulations and the configuration of peripheral devices to be connected have been determined in advance at the time of system design.

[0003] Furthermore, when a user creates a program, it is necessary to convert data for each peripheral device.

0004

[Problems to be Solved by the Invention] In conventional information processing systems, the connection between the central processing unit and peripheral devices can only be updated between peripheral devices that comply with the communication rules of the central processing unit. It was not easy to change the configuration.

[0005]Furthermore, when a user creates a program, there is a problem in that the user has to be aware of the peripheral devices when converting data.

[0006]

[Means for Solving the Problems] The method of the present invention is a peripheral device identification method for an information processing system in which a plurality of peripheral devices are connected to a central processing unit. A plurality of peripheral devices equipped with a communication protocol notification device to be notified, a peripheral device automatic identification program that identifies communication protocol information sent from the communication protocol notification device, and data based on the communication protocol corresponding to the peripheral device. Specify a conversion data file storing conversion data for each communication protocol, a communication protocol identified by the automatic peripheral device identification program, a file number that differs for each peripheral device, and an address of the conversion data. The communication protocol storage table is registered using a conversion data address pointer, a data conversion program that performs data conversion using the conversion data, and a central processing unit that has a user program.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. The present embodiment shown in FIG. 1 includes a central processing unit 1, a printer device 2, a magnetic disk device 3, an arithmetic processing unit 4, a CRT device 5, and a plurality of peripheral devices that are connected to the central processing unit 1 and perform information processing. It comprises a terminal device 6.

In addition to the user program 7, the central processing unit 1 also includes a peripheral device automatic identification program 8 that is directly involved in the present invention and identifies communication rules sent from peripheral devices.
, a data conversion program 9 that performs data conversion, a communication protocol storage table 10 that specifies logical file numbers assigned to each peripheral device and address points of communication protocol conversion data required by the peripheral device, and a data conversion program 9 that performs data conversion; The conversion data file 11 stores information for converting data based on the communication protocol corresponding to the device for each communication protocol.

Furthermore, each peripheral device is provided with a communication protocol notification device 12 that sends the communication protocol corresponding to each peripheral device to the central processing unit 1.

Next, the operation of this embodiment will be explained.

As an example, let us now consider the case where a printer device 2 is connected to a central processing unit. First, the communication protocol notification device 12 in the printing device 2 notifies the central processing unit 1 of the communication protocol.

The central processing unit 1 identifies the communication protocol information received by the peripheral device automatic identification program 8 and sends it to the printer device 2 and an address pointer storing data necessary for converting it into the communication protocol. The corresponding logical file number is registered in the communication protocol storage table 10. FIG. 2 is a diagram showing the configuration contents of the communication protocol storage table 10 and the switching data file 11.

On the other hand, when the user program 7 outputs to the printer device 2, it refers to the communication protocol storage table 10 and specifies the logical file number corresponding to the printer device 2 and the data to be output. The peripheral device automatic identification program 8 passes the specified logical file number and output data to the data conversion program 9. The data conversion program 9 obtains a conversion data address pointer from the communication protocol storage table 10 based on the specified logical file number, extracts the conversion data from the conversion data file 11 shown in FIG. 2, and outputs it. Convert data to The converted data is processed by the peripheral device automatic identification program 8.
and output to the printer device 2.

Similarly, when the user program 7 imports data from the arithmetic processing unit 4, the automatic peripheral device identification program 8 uses the specified logical file number and
The force data input from the peripheral device corresponding to the file number is passed to the data conversion program 9. The data conversion program 9 obtains a conversion data address pointer from the communication protocol storage table 10 based on the specified logical file number, extracts the conversion data, and converts the input data. The converted data is passed to the peripheral device automatic identification program 8 and then to the user program 7.

[0016] Note that the format of the data handled by the user within the program is unified in advance, and the communication procedure for notifying the communication agreement from the communication agreement notification device 12 to the central processing unit 1 is performed between the central processing unit 1 and peripheral devices. It is unified independently of the means of communication.

[0017] In this way, when a user creates a program, there is no need to convert data with peripheral devices in mind.
Furthermore, the system can be constructed freely without being restricted by the communication rules of peripheral devices.

[0018]

[Effects of the Invention] As explained above, the present invention has the following effects.

A communication protocol notification device is attached to the peripheral devices that make up the system, and based on the communication protocol information sent from there, the peripheral device automatic identification program and data conversion program in the central processing unit are handled by the user program. By converting data, users do not have to be aware of peripheral devices when converting data when creating programs.

Furthermore, since the central processing unit automatically identifies the peripheral device simply by connecting the peripheral device to the central processing unit, a system can be constructed freely without being restricted by the communication rules of the peripheral device.

Furthermore, since the user only has to deal with predetermined data formats, the man-machine interface can be improved.

[Brief explanation of the drawing]

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

FIG. 2 is a diagram showing the configuration of a communication protocol storage table 10 and a conversion data file 11 in FIG. 1;

[Explanation of symbols]

1 Central processing unit 2 Printer device 3 Magnetic disk device 4 Arithmetic processing unit 5 CRT device 6 Terminal device 7 User program 8 Peripheral device automatic identification program 9 Data conversion program 10 Communication protocol storage table 11 Conversion data file 12 Communication protocol notification device

Claims (1)

[Claims] [Claim 1] A peripheral device identification method in an information processing system in which a plurality of peripheral devices are connected to a central processing unit and operated, wherein a plurality of communication protocol notification devices are arranged to notify each communication protocol to the central processing unit. peripheral device and a peripheral device automatic identification program that identifies communication protocol information sent from the communication protocol notification device, and conversion data for converting data based on the communication protocol corresponding to the peripheral device. A communication protocol that registers a conversion data file stored for each peripheral device and a communication protocol identified by the automatic peripheral device identification program using a file number that differs for each peripheral device and a conversion data address pointer that specifies the address of the conversion data. A peripheral device identification method comprising: a central processing unit having a storage table, a data conversion program that performs data conversion using the conversion data, and a user program.