Research on Batch Process Control System Architecture Based on Improved S3 Control Structure
The traditional continuous process control system can not realize the separation of process and control well,and the production efficiency is low.To solve this problem,a batch process control system architecture based on improved control structure of scheduler,selector and synchronizer(S3)is proposed.In the scheduling layer,component description based on G description language and a scheduler based on improved S3 control structure are established to separate process and control.The phase logical interface table is established in the data layer.In the control layer,discrete control function blocks are established based on ISA S88 and IEC 61499 standards,and the selectors and synchronizers of S3 control structure are designed to realize the reconfiguration of the process.The experimental results show that the proposed batch process control system architecture can complete the control tasks of different process flows without changing the control program,realize the separation of process and control phase,and shorten the process modification time.
ISA S88 standardIEC 61499 standardbatch process controldiscrete control functional blockG description language
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