Siemens PLC module on-site collectionShenzhen Zhengrui Electronics has been purchasing automatic industrial control equipment for a long time; both new and used are welcome. We buy Siemens (Siemens) S7-1200, 300, 400, 1500, 6GK, 6DD, 6SL, 6FC, 6SN, 6SE, 6EP, 6SX, 6SE70, 6RA70, 6SY70 (IGBT board). (1) Purchasing S7-1200; such as CPU214, CPU216, DI221 DI\DO223 communication 243, other 227, etc. (2) Purchasing S7-300; such as CPU312, CPU314, CPU315, CPU317, CPU319; DI321\DO322, DI\DO323, AI331, AO332, communication 343, safety DI326, etc. (3) Purchasing S7-400; such as CPU412, CPU414, CPU416, CPU417, DI, DO\421, 422, 443 communication, function module, safety module, etc. (4) Purchasing SIMATIC ET200SP series, CPU510, CPU512, CPU515; 516PRO-2PN, etc. (5) Purchasing SIMATIC S7-1500 series, cpu511(F), 513(F), 516, 517, 518, etc., SM521 series, S7-522, SM522 series. (6) 6DD series: 6DD1600, 1660. 6EP series: 1336, 1437, etc., 6GK1161, 1411, 1500, 1503, 1561, etc. series. (7) 6SN series such as: 6SN1118, 1145 series, etc., 6ES7 series such as: 200, 300, 400, 6AV, etc. series modules.