- SIEMENS
- SIMATIC S7-1200
- Communication Modules
Sales and repair of SIMATIC S7-1200 communication modules
S7-1200 communication modules – new and refurbished parts and repairs
SIMATIC S7-1200 communication modules connect the PLC to other devices and industrial networks. We supply communication processors and modules for Ethernet, PROFIBUS and serial communication, depending on the type.

We will send a non-binding quote within 1 hour.
- Worldwide delivery
- Our own and partner parts stock
- Professional repairs
- Parts with warranty
More about selecting S7-1200 communication modules parts
S7-1200 Communication Modules for SIEMENS SIMATIC S7-1200
Communication modules expand the CPU's capabilities by adding the necessary interfaces and protocols. When selecting a module, it is important to determine the type of network and the support available in the CPU being used.
Typical Applications and Selection
Communication modules expand the S7-1200 with serial interfaces and other communication options for connecting peripherals, measuring devices, readers, and higher-level systems.
- Required protocol and physical interface
- Support for specific CPUs and firmware
- number of communication ports
- Configuring Communication and Diagnostics in TIA Portal
How do you choose the right model?
The most reliable method is to select the part based on the complete SIEMENS part number. When replacing a part, we recommend also verifying the hardware and firmware versions, the part’s function, the station configuration, and compatibility in TIA Portal.
- the complete order number and the quantity requested,
- the function and technical specifications of the original part,
- compatibility with the CPU, expansion modules, and the project in question.
New and refurbished parts from inventory
For current S7-1200 parts, we primarily check the availability of new, genuine SIEMENS parts. We have access to an extensive network of industrial parts warehouses in Europe and around the world, which is why we can also verify the availability of remanufactured, discontinued, and hard-to-find variants.


Repairs of SIEMENS SIMATIC S7-1200 Parts
You can send the defective part to FOXON for diagnosis and repair. We perform repairs at specialized repair centers in Europe, and after repair, the parts are functionally tested under load.



Frequently Asked Questions
Yes. Please send us the order number for the CPU and the modules in the workstation; we will verify their compatibility and find a suitable replacement.
Delivery times depend on the specific part and warehouse. Thanks to our access to numerous warehouses, we can typically arrange delivery within a few days; for urgent needs, we can offer express delivery within a matter of hours. For urgent requests, call us immediately—we can arrange express delivery of selected parts day or night.
Yes. Ideally, please provide the full number from the label and the quantity you need; a photo of the label will also be helpful for replacements or repairs.

6ES7241-1CH30-0XB0

6GK7277-1AA10-0AA0

6ES7241-1CA50-0XB0

6ES7241-1EA50-0XB0

6ES7241-1CH31-0XB0

6ES7278-4BD32-0XB0, repair and sale of PLC / CNC SIEMENS

3RK7271-1AA30-0AA0

6GT2002-0LA00

6GK7243-8RX30-0XE0

6GK7243-7KX30-0XE0

6GK7243-1BX30-0XE0

6GK7242-7KX31-0XE0

6ES7241-1CH32-0XB0

6ES7241-1CH30-1XB0

6ES7241-1AH32-0XB0

6GK7243-5DX30-0XE0

6GK7242-5DX30-0XE0

6GK7243-7SX30-0XE0

3RK7243-2AA30-0XB0

6GK7243-1JX30-0XE0

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Question or Inquiry
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