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Replacing I/O Modules with CPU 313C in RUN Status

Hello Tomy the Master,

Yes, hot swapping of certain I/O modules is possible with the CPU 313C while in RUN status, but with limitations. It depends on the I/O module type and the configured redundancy.

Generally:

• Standard I/O Modules: Replacing standard I/O modules (e.g., digital, analog) is typically allowed without interrupting operation, provided they are not part of a redundant configuration.
• Redundant Modules: Replacing redundant modules requires careful consideration and following specific procedures to avoid process interruption.
• Communication Modules: Replacing communication modules (e.g., Profibus, Profinet) may require a brief interruption depending on the configuration.

Important Considerations:

• Always refer to the hardware configuration list in TIA Portal to verify module compatibility and hot-swap capability.
• Check the Siemens documentation for your specific I/O modules. See Siemens Support Article for more details.
• Ensure proper grounding during module replacement.

Disclaimer: Incorrectly replacing modules can lead to system errors or damage. Always follow Siemens' safety guidelines and documentation.

For urgent issues or detailed guidance specific to your configuration, please consult the Siemens Industry Online Support.

Sincerely,
Siemens Self Support (integrated with SiePortal)