从PLC的工作原理知，PLC的输入与输出在物理上是彼此隔开的，其间的联系是靠运行存储于它的内存中的程序实现。它的入出相关，不是靠物理过程，不是用线路；而是靠信息过程，用软逻辑联系。它的工作基础是用好信息。
福州卓凯电子科技有限公司联系人：林工
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公司地址：福州市闽侯西江滨大道77号正荣润园一号楼1205室
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