MODULE TRUYỀN THÔNG PLC S7-1200 - SIEMENS
| Module S7-1200 | Truyền thông mở rộng | ||
| 1241 | 6ES7241-1AH32-0XB0 | CM | RS232, 9-pole D-sub (pin), supports Freeport |
| 6ES7241-1CH32-0XB0 | RS422/485, 9-pole D-sub (socket) supports Freeport | ||
| 6ES7241-1CH30-1XB0 | CB | RS485, terminal block, supports Freeport | |
| 1242-5 | 6GK7242-5DX30-0XE0 | CM | connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. |
| 1243-5 | 6GK7243-5DX30-0XE0 | connection of SIMATIC S7-1200 to PROFIBUS as DP Master module; PG/OP communication; S7 communication. | |
| 1243-2 | 3RK7243-2AA30-0XB0 | CM | AS-Interface master according to AS-i specification V3.0 |
| 1278 | 6ES7278-4BD32-0XB0 | SM | IO-Link, 4xIO-Link Master |