AB PLC维修，AB 1756大型Controllogix PLC维修，AB 1769中型Compartlogix PLC维修，AB 1746/1747老SLC 500PLC维修，AB 1785/1771老PLC-5 PLC维修，AB 1794Flexlogix PLC维修。AB PLC CPU模块维修：指示灯不亮，ok灯红灯长亮或闪，run运行灯不亮灯等故障。1756-L61/62/63S 1756-SRM 1756-L55M12/13/14/16 1747-L551/2/3 1747-L541/2/3 1769-L35 1785-LT2 .AB PLC电源模块维修:power电源灯不亮，冗余灯不亮，烧坏无输出等故障维修。1756-PA/B72C 1756-PA/B75R 1769-PA/B2 1769-PA/B4 1746-P3/P5/P6/P7 1771-P10 1771-PS7 1771-P6S/R 1771-P6/4S1.AB PLC模拟量输入模块维修：指示灯不亮，通道点坏，故障灯长亮，与实际值有误差等故障维修。1756-IF16A/H 1756-IF4FXOF2F 1756-IF6CIS 1756-IF6I 1756-IF8 1756-IF8H 1746-NI16I 1746-NI16V1746-NI4 1746-NI8 1771-NIS/NIV1 1771-IE/I...