FBM201 P0914SQ FOXBORO

A40888-340-51 AB PLC
42336- 172-52 AB
40888-087-08A AB
42305-009 AB PLC
1336F-B150-AA-EN AB
40888-313-51 AB
315361-A01 AB
1305-BA09A AB
150-A24NBD AB
150-A97NB-NA AB
150-A97NBD AB

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描述

继电器控制是通过元件之间的硬接线来实现的,因此其控制功能就固定在线路中了,因此功能专一,不灵活;而PLC控制是通过软件编程来解决的,只要程序改变,功能可跟着改变,控制很灵活。又因PLC是通过循环扫描工作的,不存在继电器控制线路中的联锁与互锁电路,控制设计大大简化了。

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