描述
GOM“点的选择不同的PLC产品，其“COM”点的数量是不一样的，有的一个“COM”点带8个输出点，有的带4个输出点，也有带2个或1个输出点的。当负载的种类多，且电流大时，采用一个“COM”点带1—2个输出点的PLC产品；当负载数量多而种类少时，采用一个“COM”点带4—8个输出点的PLC产品。这样会对电路设计带来很多方便，每个“COM”点处加一熔丝，1—2个输出时加2A的熔丝，4—8点输出的加5—10A的熔丝，因PLC内部一般没有熔丝。
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