¥ 价格面议
¥ 价格面议
¥ 价格面议
¥ 价格面议
易卖工控网(www.ymgk.com)提供”33C-AJ-D 控制模块”,产品详情:品牌/厂家:其他品牌、型号:33C-AJ-D、成色:全新、货期:期货 7天内发货、保修:365天,更多产品详情就上易卖工控网。
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PLC控制系统大多数故障95%在外设,仅有5%发生在PLC本身。故维修系统的注意力应该首先集中在外部设备而在5%的PLC故障中,控制器内的故障只占10%,90%发生在I/O模板中。
故障发生时,首先定位故障发生在PLC内部还是外部(第一层);是在I/O回路还是在控制器内部(第二层);是PLC硬件故障还是软件故障(第三层)。