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6FX1120-3BB00 is identified by Siemens as a Coupling Module within the Sinumerik family.
For replacement planning, its purpose is tied to the system function named for the product. Connection, configuration, and operating requirements should be confirmed from the installed equipment documentation. The product should be matched to the documented control-system position.
For system maintenance, this product is associated with the Sinumerik family and the CNC controls category. Configuration and compatibility should be confirmed for the exact system in which it will be used. The original equipment schedule should guide compatibility review.
In the signal path, this approach helps preserve the intended system function while keeping selection aligned with the documented ratings, capacity, and compatibility requirements. Existing connection and module records should guide replacement work.
SIEMENS SINUMERIK 3 PLC CU/EU coupling
Product was cancelled by Siemens 07.24.2019 without replacement
Product was cancelled by Siemens 07.24.2019 without replacement
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