| Siemens S7 400 | ||
| Electrical Source And Battery | ||
| 1 | PS405 4A | 6ES74050DA020AA0 |
| 2 | PS405 10A | 6ES74050KA020AA0 |
| 3 | PS405 10A(redundancy） | 6ES74050KR020AA0 |
| 4 | PS405 20A | 6ES74050RA020AA0 |
| 5 | PS407 4A | 6ES74070DA020AA0 |
| 6 | PS407 10A | 6ES74070KA020AA0 |
| 7 | PS407 10A(redundancy） | 6ES74070KR020AA0 |
| 8 | PS407 20A | 6ES74070RA020AA0 |
| Central Rack And Rack Expansion | ||
| 1 | UR1 | 6ES74001TA010AA0 |
| 2 | UR2 | 6ES74001JA010AA0 |
| 3 | CR2 | 6ES74012TA010AA0 |
| 4 | CR3 | 6ES74011DA010AA0 |
| 5 | UR2H | 6ES74002JA000AA0 |
| 6 | ER1 | 6ES74031TA010AA0 |
| 7 | ER2 | 6ES74031JA010AA0 |
| Central Processing Unit | ||
| 1 | CPU4121 | 6ES74121XJ050AB0 |
| 2 | CPU4122 | 6ES74122XJ050AB0 |
| 3 | CPU4142 | 6ES74142XK050AB0 |
| 4 | CPU4143 | 6ES74143XM050AB0 |
| 5 | CPU 4143 PN/DP | 6ES74143EM050AB0 |
| 6 | CPU4162 | 6ES74162XN050AB0 |
| 7 | CPU4163 | 6ES74163XR050AB0 |
| 8 | CPU4163 PN/DP | 6ES74163ER050AB0 |
| 9 | CPU4174 | 6ES74174XT050AB0 |
| Redundancy of the Central Processing Unit CPU And Package | ||
| 1 | CPU4123H | 6ES74123HJ140AB0 |
| 2 | CPU4144H | 6ES74144HM140AB0 |
| 3 | CPU4174H | 6ES74174HT140AB0 |
| 4 | 4123H Package ,PS407 10A | 6ES74000HR004AB0 |
| 5 | 4123HPackage ,PS405 10A | 6ES74000HR504AB0 |
| 6 | CPU4144H | 6ES74144HJ040AB0 |
| 7 | CPU4174H | 6ES74174HL040AB0 |
| 8 | S7400H Synchronous template | 6ES79601AA040XA0 |
| 9 | Fiber-optic cable 1M | 6ES79601AA045AA0 |
| 10 | Fiber-optic cable 2M | 6ES79601AA045BA0 |
| 11 | Fiber-optic cable 10M | 6ES79601AA045KA0 |
| Digital I/O Module SM421 And SM422 | ||
| 1 | SM421 DI32 | 6ES74211BL010AA0 |
| 2 | SM421 DI32 | 6ES74211EL000AA0 |
| 3 | SM421 DI16 | 6ES74211FH200AA0 |
| 4 | SM421 DI16 | 6ES74217BH010AB0 |
| 5 | SM421 DI16 | 6ES74217DH000AB0 |
| 6 | SM422 DO16 | 6ES74221BH110AA0 |
| 7 | SM422 DO32 | 6ES74221BL000AA0 |
| 8 | SM422 DO16 | 6ES74221FH000AA0 |
| 9 | SM422 DO16R | 6ES74221HH000AA0 |
| 10 | SM422 DO32 | 6ES74227BL000AB0 |
| Simulate I/O Module SM431 AMD SM432 | ||
| 1 | SM431 AI16 | 6ES74310HH000AB0 |
| 2 | SM431 AI8 | 6ES74311KF000AB0 |
| 3 | SM431 AI8 | 6ES74311KF100AB0 |
| 4 | SM431 AI8 | 6ES74311KF200AB0 |
| 5 | SM431 AI8 | 6ES74317KF000AB0 |
| 6 | SM431 AI8 | 6ES74317KF100AB0 |
| 7 | SM431 AI16 | 6ES74317QH000AB0 |
| 8 | SM432 AO8 | 6ES74321HF000AB0 |
| Function Module FM45X | ||
| 1 | FM4501 | 6ES74501AP000AE0 |
| 2 | FM451 | 6ES74513AL000AE0 |
| 3 | FM452 | 6ES74521AH000AE0 |
| 4 | FM453 | 6ES74533AH000AE0 |
| 5 | FM455C | 6ES74550VS000AE0 |
| 6 | FM455S | 6ES74551VS000AE0 |
| Communication Module CP | ||
| 1 | CP4411 | 6ES74411AA040AE0 |
| 2 | CP4412 | 6ES74412AA040AE0 |
| 3 | IF963RS232C(V.24) | 6ES79631AA000AA0 |
| 4 | IF96320MA(TTY) | 6ES79632AA000AA0 |
| 5 | IF963RS422/485(X.27) | 6ES79633AA000AA0 |
| 6 | IF964DP | 6ES79642AA040AB0 |
| 7 | CP4435 (Extended type) | 6GK74435DX040XE0 |
| 8 | CP4435 (Basic type) | 6GK74435FX020XE0 |
| 9 | CP4431 | 6GK74431EX110XE0 |
| Interface Module And Cable | ||
| 1 | IM4600 | 6ES74600AA010AB0 |
| 2 | IM4610 | 6ES74610AA010AA0 |
| 3 | IM4610 Terminal Resistance | 6ES74610AA007AA0 |
| 4 | IM4601 | 6ES74601BA010AB0 |
| 5 | IM4611 | 6ES74611BA010AA0 |
| 6 | IM4603 | 6ES74603AA010AB0 |
| 7 | IM4613 | 6ES74613AA010AA0 |
| 8 | IM4613 Terminal Resistance | 6ES74613AA007AA0 |
| 9 | IM4681 cable 0.75M | 6ES74681AH500AA0 |
| 10 | IM4681 cable 1.5M | 6ES74681BB500AA0 |
| 11 | IM4681 cable 5M | 6ES74681BF000AA0 |
| 12 | IM4681 cable 10M | 6ES74681CB000AA0 |
| 13 | IM4681 cable 25M | 6ES74681CC500AA0 |
| 14 | IM4681 cable 50M | 6ES74681CF000AA0 |
| 15 | IM4681 cable 100M | 6ES74681DB000AA0 |
| 16 | IM4683 cable 0.75M | 6ES74683AH500AA0 |
| 17 | IM4683 cable 1.5M | 6ES74683BB500AA0 |
| Front Linker And Memory Card | ||
| 1 | Front linker，bolt | 6ES74921AL000AA0 |
| 2 | Front linker，spring | 6ES74921BL000AA0 |
| 3 | RAM 256K | 6ES79521AH000AA0 |
| 4 | RAM 1M | 6ES79521AK000AA0 |
| 5 | RAM 2M | 6ES79521AL000AA0 |
| 6 | RAM 4M | 6ES79521AM000AA0 |
| 7 | RAM 8M | 6ES79521AP000AA0 |
| 8 | FEPROM 64K | 6ES79520KF000AA0 |
| 9 | FEPROM 256K | 6ES79520KH000AA0 |
| 10 | FEPROM 1M | 6ES79521KK000AA0 |
| 11 | FEPROM 2M | 6ES79521KL000AA0 |
| 12 | FEPROM 4M | 6ES79521KM000AA0 |
| 13 | FEPROM 8M | 6ES79521KP000AA0 |
| 14 | FEPROM 16M | 6ES79521KS000AA0 |
| 15 | FEPROM 32M | 6ES79521KT000AA0 |
| 16 | FEPROM 64M | 6ES79521KY000AA0 |