Serial/parallel conversion module, equipment, method and device and industrial control system

Abstract

The embodiment of the invention provides a serial / parallel conversion module, equipment, method and device applied to an industrial control system and the industrial control system. The serial / parallel conversion module comprises a first transceiving circuit, a conversion control module and a third transceiving circuit, wherein the first transceiving circuit is configured to perform data interaction with a controller by adopting a concurrent or assembly line working mechanism, the third transceiving circuit is configured to perform data interaction with a controlled slave station by adopting a polling working mechanism, and the conversion control module comprises a data conversion logic configured to connect the first transceiving circuit and the third transceiving circuit to realize data forwarding of a data link layer between the first transceiving circuit and the third transceiving circuit. The scheme of the embodiment of the invention is compatible with the polling working mechanism of the existing controlled equipment, effectively controls the communication delay, and improves the networking flexibility of an industrial control network and the flexibility of reconstructing a production line.

Description

technical field [0001] The present invention relates to but not limited to the field of industrial control, and specifically relates to a serial-to-parallel conversion module, equipment, method, device and industrial control system applied to the industrial control system. Background technique [0002] In the current industrial control system, especially in the DCS (distributed control system) system, the stock market is huge, and the communication between the field master and slave stations mostly uses the field bus for serial polling communication mechanism. One controller master station has about 100 Slaves. In the existing wireless technology, the typical delay of wifi6 communication is 30ms, and the typical delay of 5G communication is 10ms. The delay of wireless communication is far greater than the near-zero delay of wired communication. It is impossible to simply superimpose wireless technology directly on the existing control network. Instead of wired communication...

AI Technical Summary

Problems solved by technology

In the existing wireless technology, the typical delay of wifi6 communication is 30ms, and the typical delay of 5G communication is 10ms. The delay of wireless communication is far greater than the near-zero delay of wired communication. It is impossible to simply superimpose wireless technology directly on the existing control network. Instead of wired communication in technology, otherwise the delay caused by wireless communication will increase linearly with the increase of the number of slave stations, resulting in the control network cycle data refresh rate is too low, and the control system cannot work normally when it times out

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