The application of CAN field bus technology in the beer fermentation process

The papar briefly introduce a distributed control system unilizing CAN field-bus technology. The system has two control layers. In the process control layer,the authors designed an intelligent module with which 4 analogy inputs and 3 analogy outputs can be simply realized. The protocol switch organ hardware schematic diagram and intelligent module hardware schematic diagram are introduced in the paper. The System is successfully used in a beer fermentation process.