Siemens S7‑200 PLC Expansion Modules extend the capabilities of S7‑200 PLC systems by adding additional digital/analog I/O, communication, and specialty function modules. Designed for small to medium-scale automation, these modules enable flexible and reliable control solutions in OEM machines, process automation, and industrial applications. Fully compatible with STEP 7 Micro/WIN, S7‑200 expansion modules offer seamless integration, scalable automation, and long-term reliability in harsh industrial environments.
Digital Input Modules (DI) – e.g., 6ES7 231‑7PB01‑0XB0, 6ES7 231‑7PC01‑0XB0 Digital Output Modules (DO) – e.g., 6ES7 232‑7PB01‑0XB0, 6ES7 232‑7PC01‑0XB0 Analog Input Modules (AI) – e.g., 6ES7 233‑7PB01‑0XB0, 6ES7 233‑7PC01‑0XB0 Analog Output Modules (AO) – e.g., 6ES7 234‑7PB01‑0XB0, 6ES7 234‑7PC01‑0XB0 Communication Modules (CM, CP) – e.g., 6ES7 235‑0KB01‑0XA0, 6ES7 235‑0KC01‑0XA0 Specialty Modules – High-speed counter, pulse output, temperature modules(All modules provide reliable industrial operation, compact design, and seamless integration with S7‑200 PLC systems.)
Extend S7‑200 PLC with digital, analog, and specialty I/O Communication modules for PROFINET / PROFIBUS integration Compatible with STEP 7 Micro/WIN for easy configuration Rugged industrial design for continuous operation Ideal for OEM machines, small automation systems, and factory control Small to medium automation control systems OEM machine integration Process monitoring and factory automation PLC system expansion with digital, analog, and communication modules Ready stock in Ahmedabad with pan-India delivery OEM-grade Siemens products Technical support and prompt supply| MODEL NUMBER | DESCRIPTION |
| 6ES7231-0HC22-0XA0 | EM 231 Analog Input, 4AI (12-bit) |
| 6ES7231-0HF22-0XA0 | EM 231 Analog Input, 8AI (High Resolution) |
| 6ES7231-7PB22-0XA0 | EM 231 Analog Input RTD, 2 Inputs |
| 6ES7231-7PD22-0XA0 | EM 231 Analog Input Thermocouple, 4 Inputs |
| 6ES7232-0HB22-0XA0 | EM 232 Analog Output, 2AO |
| 6ES7235-0KD22-0XA0 | EM 235 Analog Mixed, 4AI / 1AO |
| 6ES7277-0AA22-0XA0 | EM 277 PROFIBUS-DP Slave Module |
| 6ES7241-1AA22-0XA0 | EM 241 Modem Module |
| 6ES7253-1AA22-0XA0 | EM 253 Positioning Module |
| 6GK7243-1EX01-0XE0 | CP 243-1 Ethernet Communications Module |
| 6ES7221-1BF22-0XA0 | EM 221 Digital Input, 8 x 24V DC |
| 6ES7221-1BH22-0XA0 | EM 221 Digital Input, 16 x 24V DC |
| 6ES7222-1BF22-0XA0 | EM 222 Digital Output, 8 x 24V DC (0.75A) |
| 6ES7222-1HF22-0XA0 | EM 222 Digital Output, 8 x Relay (2A) |
| 6ES7223-1BF22-0XA0 | EM 223 Digital Mixed, 4DI / 4DO DC |
| 6ES7223-1HF22-0XA0 | EM 223 Digital Mixed, 4DI / 4DO Relay |
| 6ES7223-1BH22-0XA0 | EM 223 Digital Mixed, 8DI / 8DO DC |
| 6ES7223-1PH22-0XA0 | EM 223 Digital Mixed, 8DI / 8DO Relay |
| 6ES7223-1BL22-0XA0 | EM 223 Digital Mixed, 16DI / 16DO DC |
| 6ES7223-1PL22-0XA0 | EM 223 Digital Mixed, 16DI / 16DO Relay |
| 6ES7223-1BM22-0XA0 | EM 223 Digital Mixed, 32DI / 32DO DC |
| 6ES7223-1PM22-0XA0 | EM 223 Digital Mixed, 32DI / 32DO Relay |
