Programmable Controller in the Information Control 891321
Programmable controller (PLC) can be used not only for process control but also information control to increase productivity.
For discrete switching system PLC obtains various parameters from switching status sequence and intervals. Analysing these parameters, the information about production, reject rate, fault frequency and production efficiency can be acquired. Besides, the parameters can also be used for diagnosis, fault forecast and further more co-ordenating the relation among diffirent processes.
Above mentioned control has been realiezed on a casting automatic line in No.2 Auto Works.
Yang Rong, Wang Yang, Li Jiaxue, Han Fuxun, Wang Jianshen
The Second Automobile Works, China
5th International Pacific Conference on Automotive Engineering