Information transfer system and method

Abstract

The invention discloses an information transfer system. The information transfer system comprises a host and multiple slaves; an uplink sending port of the first slave is connected with a receiving port of the host, and an uplink receiving port of the previous slave is connected with an uplink sending port of the next slave; when the tail-end machine flag of any one slave is a first flag and a setreporting cycle is up, the slave transfers to-be-reported information of the slave out; when the end machine flag of the slave is a second flag and the slave receives reported information transferredfrom the next slave, the slave determines current reported information and transfers the determined current reported information out; and the host receives the reported information transferred by thefirst slave through the receiving port of the host. By applying the technical scheme, the host can automatically and flexibly recognize the addresses of the various slaves according to the arrangement order of the received reported information, and therefore the field management and maintenance cost is reduced. The invention further discloses an information transfer method which has the corresponding technical advantages.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an information transmission system and method. Background technique [0002] In industrial applications, the host usually needs to communicate with multiple slaves and perform related processing on the information collected by multiple slaves. [0003] In the communication process, the master mostly communicates with the corresponding slave through the slave address. The address of the slave machine can be set on the hardware through the DIP switch or other methods, but this requires additional hardware design, the production cost is high, and the hardware address is often difficult to change on site, which increases the production and on-site installation. troubles, reducing production efficiency, or, the processing logic of on-site disposal can be added to the software, but this requires the addition of corresponding communication interfaces and setting software, etc., ...

AI Technical Summary

Problems solved by technology

The address of the slave machine can be set on the hardware through the DIP switch or other methods, but this requires additional hardware design, the production cost is high, and the hardware address is often difficult to change on site, which increases the production and on-site installation. troubles, reducing production efficiency, or, the processing logic of on-site disposal can be added to the software, but this requires the addition of corresponding communication interfaces and setting software, etc., and software addressing is adopted, and on-site changes often require special communication interfaces and supporting software can only be implemented, it will also increase production and maintenance costs

In addition, due to maintenance or temporary adjustment of the arrangement position of the slaves on site, the address of the slaves will change, which will affect the recognition of the slaves by the master, and require re-addressing, which will increase the cost of on-site management and maintenance.

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