• Siemens SIMATIC S7-1200 CM 1241 / CB 1241 serial communication
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Siemens SIMATIC S7-1200 CM 1241 / CB 1241 serial communication

Siemens SIMATIC S7-1200 CM 1241 / CB 1241 serial communication

Serial communications modules and board for point-to-point connections of SIMATIC S7-1200.

Key features

  • RS-232, RS-422/485 and RS-485 interfaces
  • Freeport and point-to-point protocols
  • CM 1241 module mounts to the left of the CPU
  • CB 1241 board plugs into the CPU front slot

Specifications

Brand Siemens
Product line SIMATIC
Series SIMATIC S7-1200
Protocol Freeport / point-to-point
Interfaces RS-232, RS-422/485, RS-485
Mounting CM left of CPU / CB in front slot
Engineering STEP 7 (TIA Portal)
Source Siemens Catalog ST 70 · 2026, p. 287-292
6ES7241-1CH32-0XB0 Type: CM 1241 module | Interface: RS-422/485, 9-pin D-sub socket
6ES7241-1AH32-0XB0 Type: CM 1241 module | Interface: RS-232, 9-pin D-sub pin
6ES7241-1CH30-1XB0 Type: CB 1241 board | Interface: RS-485, terminal block
PLC Communication ModulesSiemens
3 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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Siemens SIMATIC S7-1200 CM 1241 / CB 1241 serial communication

Brand Siemens·PLC Communication Modules

Available part numbers (3)

6ES7241-1CH32-0XB0, 6ES7241-1AH32-0XB0, 6ES7241-1CH30-1XB0

How to order

Send the Siemens part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
6ES7241-1CH32-0XB0Type: CM 1241 module | Interface: RS-422/485, 9-pin D-sub socket
6ES7241-1AH32-0XB0Type: CM 1241 module | Interface: RS-232, 9-pin D-sub pin
6ES7241-1CH30-1XB0Type: CB 1241 board | Interface: RS-485, terminal block

Need a different model, or a part not listed here? Send us your parts list →

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