Programable controller system

Abstract

The invention discloses a programmable controller system, which includes a logical controller and a spreading module, wherein, the spreading module includes a signal capture unit for capturing external signal; a filter for executing filtering process to the external signal captured by the signal capture unit; and a communication unit for transmitting and receiving information. The filter includesa filtering unit for executing filtering process to the signals according to the filtering algorithm; and a filtering configuring device for executing filtering configuring to the filtering unit according to the filtering configuring table obtained from the communication unit. Accordingly, the invention also discloses a spreading module. According to the inventive spreading module and programmable controller system, the CPU process burden is decreased, and the adaptability and flexibility are greatly improved as the filtering algorithm and parameter is capable of being flexibly configured.

Description

technical field [0001] The invention relates to the technical field of programmable control, in particular to a programmable controller system. Background technique [0002] With the development of programmable control technology, the requirements for industrial automation are getting higher and higher, and the complexity of the industrial application environment makes the signal easily interfered. In order to ensure that the correct signal is collected and prevent erroneous operation, filtering technology is very important. [0003] In the current programmable logic controller (Programmable Logic Controllers, PLC) system, the central processing unit (Center Processing Unit, CPU) and the expansion module for collecting signals can be separated, and they are connected together through the bus to exchange data with each other. Such as figure 1 As shown, the expansion module 2 uses the signal acquisition unit 21 to collect signals, and then sends the collected signals (includi...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor finds that the prior art has the following defects: the integration of the filter unit in the CPU will take up CPU resources and increase the processing burden of the CPU. When the cycle of the CPU processing other affairs is too long, the filter unit The performance of the filter unit will be greatly reduced; since the filter algorithm and parameters of a filter unit cannot be changed after configuration, the adaptability and flexibility are very poor in the face of complex application environments.

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