opc礦機邀請

『壹』 plc與opc的區別和關系

OPC我不知道.但我知道西門字生產PLC,具體怎麼工作那一句兩句說不清,呵呵

『貳』 Everbox 邀請碼：

2011年2月19日最新出爐邀請碼,建議從後往前使用
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