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6FX1120-4BA01 is identified by Siemens as a Communications CPU within the Sinumerik family.
For replacement planning, this type of module provides control execution within the automation architecture. Its responsibilities can include logic processing, data handling, communications, and coordination of connected subsystem resources. The original wiring and configuration records should guide application.
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. Application details remain governed by the exact product revision.
In the signal path, this approach helps preserve the intended system function while keeping selection aligned with the documented ratings, capacity, and compatibility requirements. Final selection should be based on the plant's controlled-equipment records.
SIEMENS SINUMERIK 850/880 6FX1120-4BA01 COM-CPU (communications central processing unit)
Product was cancelled by Siemens 03.06.2003 without replacement
Product was cancelled by Siemens 03.06.2003 without replacement
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