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Synchronous communication network terminal address searching method

A communication terminal and synchronous communication technology, applied in electrical components, transmission systems, etc., can solve the problem of low search efficiency of communication terminal addresses, and achieve the effect of improving efficiency and search efficiency.

Active Publication Date: 2012-08-22
CHENGDU ACTION ELECTRONICS JOINT STOCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of low search efficiency of communication terminal addresses in the above-mentioned synchronous bus communication, the present invention discloses a method for searching addresses of communication terminals in a synchronous communication network

Method used

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  • Synchronous communication network terminal address searching method

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specific Embodiment 1

[0023] Specific embodiment 1: If there is only one communication terminal device on the synchronous communication network, the address of the device is 10000001 (0x989681 in hexadecimal). First, the communication host sends a broadcast command. After receiving the command, the communication terminal calculates its own address conversion code as (0x02, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x40, 0x01, 0x00, 0x00, 0x02), And send the conversion code to the communication bus. The communication host receives the conversion code and restores it to a hexadecimal address of 0x989681, then the communication host sends the address to the communication terminal, and the communication terminal responds to the address, then the communication host records the address of the communication terminal. The entire communication search process only needs to send two communication commands, which is very fast.

specific Embodiment 2

[0024] Embodiment 2: If there are two communication terminal devices on the synchronous communication network, the addresses of the two communication terminal devices are 10000001 (0x989681 in hexadecimal) and 10000002 (0x989682 in hexadecimal). First, the communication host sends a broadcast command. After receiving the command, the two communication terminals calculate their address conversion codes as (0x02, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x40, 0x01, 0x00, 0x00, 0x02 ) and (0x02, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x40, 0x01, 0x00, 0x00, 0x04), they send their own address conversion codes to the communication bus at the same time, and the communication host receives the two communications The superposition of terminal address conversion codes is (0x02, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x40, 0x01, 0x00, 0x00, 0x06), and then parses and restores two communication terminal device addresses, which are 0x989681 and 0x989682 respectively . Then the communication host se...

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Abstract

The invention relates to synchronous bus communication and discloses a synchronous communication network terminal address searching method. The method comprises the concrete steps that: a synchronous communication network system is built, wherein the synchronous communication network system comprises a communication host machine and a communication terminal, and the communication host machine and the communication terminal are connected through a synchronous communication bus; the communication host machine sends broadcast commands, the communication terminal carries out self address conversion and then sends the conversion codes to the communication host machine, the communication host machine receives the overlapping of all communication terminal conversion codes, the addresses of all communication terminals are obtained after the analysis, in addition, the addresses are verified with the communication terminals one by one, when one address is the same as the communication terminal address, the address is stored as the communication terminal address, and otherwise, the address is abandoned. After the adoption of the searching scheme provided by the invention, the communication host machine can fast search all equipment in the network no matter how big the communication terminal equipment address is, and the system can enter the normal operation state as fast as possible.

Description

technical field [0001] The invention relates to synchronous bus communication, in particular to a synchronous communication network terminal address search method. Background technique [0002] After building a communication network system, the communication host cannot know what communication terminal equipment is connected to the entire communication network. Currently, there are two common approaches. 1. The debugger enters the serial numbers of all the communication terminal devices in the network in the communication host. This method increases the workload of the debugger and is very slow in efficiency. 2. The communication host detects one by one according to the default communication address range or according to a certain combination, and records the address of the communication terminal device when it gets a response from the communication terminal device. If this method is adopted, if the address of the communication terminal device in the network is very large (...

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 魏季水
Owner CHENGDU ACTION ELECTRONICS JOINT STOCK
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