公司名称：东莞市西维拓机电有限公司

、扩展模块EM
 EM221 DI模块 8入 24VDC                                        6ES72211BF220XA0

 EM221 DI模块16入 24VDC                                         6ES72211BH220XA0

 EM222 DO模块 8出 24VDC                                       6ES72221BF220XA0

 EM222 DO模块 8出 继电器                                        6ES72221HF220XA0

 EM223DI/ DO模块4入/4出 24VDC                             6ES72231BF220XA0

 EM223DI/ DO模块4入24VDC/4出继电器输出           6ES72231HF220XA0

 EM223DI/ DO模块8入/8出 24VDC                             6ES72231BH220XA0

 EM223DI/ DO模块8入24VDC/8出继电器输出           6ES72231PH220XA0

 EM223DI/ DO模块16入/16出 24VDC                        6ES72231BL220XA0

 EM223DI/ DO模块16入24VDC/16出继电器输出      6ES72231PL220XA0 

 EM231模拟量输入模块 4输入                                     6ES72310HC220XA0
 EM231 2路输入热电阻                                                  6ES72317PB220XA0
 EM231 4路输入热电偶                                                  6ES72317PD220XA0
 EM232 模拟量输出模块，2输出                                  6ES72320HB220XA0
 EM235 模拟量输入/输出模块 4入/1出                        6ES72350KD220XA0
 EM241调制解调器模块                                                  6ES72411AA220XA0
 EM253 定位模块                                                             6ES72531AA220XA0
 EM277 PROFIBUS-DP模块                                          6ES72770AA220XA0
 CP241-1以太网模块                                                       6GK72431EX010XE0