1785-L80C15 AB

6fc5210-0df25-2aa0
MVI56-DFCM
R911298373
HMV01.1E-W0030-A-07-NNNN
HMS01.1N-W0036-A-07-NNNN
HMS01.1N-W0150-A-07-NNNN
GC50-U050
woodwardegcp-2
1756-L60M03SE

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描述

要先弄清除控制系统的I/O总点数,再按实际所需总点数的15~20%留出备用量(为系统的改造等留有余地)后确定所需PLC的点数。

PLC的输出点可分为共点式、分组式和隔离式几种接法。隔离式的各组输出点之间可以采用不同的电压种类和电压等级,但这种PLC平均每点的价格较高。如果输出信号之间不需要隔离,则应选择前两种输出方式的PLC。

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