SIEMENS s7-400cPU模块上的LED指示灯 D的故障指示 LED"INTFI d LED"INTF" LEDEXTF LEDEXTF LED"FRCE LED BUSF LED"CRST LIl 匚不带DP接口的cPU匚带DP接囗的cPU SIMATIC S7 ate:2021-2-24 Information and Training Center 2000 hts reserved. SSP1 06C7 Knowledge for AutomationDate: 2021-2-24 File: SSP1_06C.7 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation S7-400 CPU模块上的LED指示灯 不带 DP 接口的CPU DP的故障指示 带 DP 接口的CPU LED "INTF" LED "EXTF" LED "FRCE" LED "CRST" LED "INTF" LED "EXTF" LED "BUSF