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plc编程定位控制，相对定位指令drvi，做编程的时候一定要用到。
PLC编程技术8/12
App27:35
App21:01
App00:22
App00:41
App01:28
App00:43
App00:54
App00:38
App00:42
App01:11
App01:23
App03:54打开App观看
App27:35App21:01App00:22App00:41App01:28App00:43App00:54App00:38App00:42App01:11App01:23App03:54
