Used 6ES7 312-5BD01-0AB0 Siemens Simatic S7 CPU312C Processor Control Unit,Control Unit Used 6ES7 312-5BD01-0AB0 Siemens Simatic S7 CPU312C Processor, Simatic S7-300, This unit was taken Directly from Working Service, Is Being Sold in GOOD WORKING Condition, Therefore we strive to,Catalog # 6ES7 312-5BD01-0AB0, Processor Control Unit Used 6ES7 312-5BD01-0AB0 Siemens Simatic S7 CPU312C.