Description
用PLC实现对系统的控制是非常可靠的。这是因为PLC在硬件与软件两个方面都采取了很多措施,确保它能可靠工作。事实上,如果PLC工作不可靠,就无法在工业环境下运用,也就不成其为PLC了。PLC的输入输出电路与内部CPU是电隔离。其信息靠光耦器件或电磁器件传递
Allen Bradley Electronic Operator Interface Terminal
Allen Bradley Electronic Operator Interface Terminal
Allen Bradley Electronic Operator Interface Terminal
Allen Bradley Electronic Operator Interface Terminal
Allen Bradley Electronic Operator Interface Terminal