What the suffix strip means for the wiring bench
The FR-E840-0120-4-60: For a controls integrator, that sets the bench expectation — the safe-stop input expects a sourcing signal and is not reconfigurable, and the digital inputs default to source logic so sinking sensors need a parameter flip before commissioning.
Sourcing posture for the BOM line
With lifecycle marked current and no official successor code in the record, the procurement move is to specify the FR-E840-0120-4-60 into the BOM as quoted-to-order and let the RFQ drive lead time and authorised-channel confirmation.