6ES7 340-1AH02-0AE0 SIMATIC S7-300, CP 340 communications processor with RS232C interface (V.24), including configuration package light 6ES7 340-1BH02-0AE0 SIMATIC S7-300, CP 340 communications processor with 20MA Interface (TTY), including configuration package CD 6ES7 340-1CH02-0AE0 SIMATIC S7-300, CP 340 communications processor with RS422/485 interfaces, including configuration package Bin Qin disc Shanghai Electric Technology Co., Ltd. (Siemens core partners ) Contact: Feng Li Star (Mr) Mobile: 15221871358 Tel 021 -61532630 Fax 021 -67766155 Online QQ: 2541732832 Address: Songjiang District, Chen Hua Road, Room 1001, No. 65, Lane 839 Shanghai Bin Qin is the German company Siemens In the field of automation and control duly authorized partner company sold products, new original, one year warranty, whenever there is any quality problem, unconditional return material (artificial damage, 15 days) Siemens PLC control cabinet door installation Siemens PLC; Engineering: S7-200CN, S7-200SMART, S7-300, S7-400, S7-1200, S7-1500, ET200, LOGO logic control module. Siemens HMI human-machine interface: TD200, TD400C, TP177A / B, MP277, MP377, TP700, TP900, TP1200, TP1500, SMART700/1000. Siemens converter: MM420, MM430, MM440, G110, G120, 6SE70 works 6RA70 DC converter governor, 3RW30/40/44 soft starter. Siemens CNC system: 802C, 802S, 808D, 802D/SL, 810D, 840D. Siemens servo drives: 611A, 611D, 611U, S120, NCU, PCU, servo motors, low voltage motors. Siemens Industrial Ethernet: communication card, communication cables, communication connector, bus connector IPC, switches, automation software, and other products.