Overview
Manuals
CI845 Base Pairing
Power Voting Paths
FCI Commissioning
Features:
- ABB identifies TU860 as an Ethernet Field Communication Interface module termination unit used with CI845; redundant configurations use two CI845 modules and associated Ethernet adapters on one TU860/TU865 arrangement.
- Confirm TU860 type, CI845 quantity, TC810 adapters, single or redundant power arrangement, mechanical keying and field-network design.
- Confirm power voting and supervision, Ethernet links, CI845 redundancy state, connected I/O and cabinet-temperature diagnostics.
TU860 must be selected from the complete manufacturer identity and the receiving-system evidence. Use it as the documented termination/base unit for the CI845 Ethernet FCI arrangement. Verify both 24 V feeds, grounding, module keying and Ethernet routing before seating the FCI modules.
Official source: ABB CI845/TC810/TU860 hardware documentation. Official component relationships and redundant Select I/O/S800 I/O architecture.
TU860 official technical documentation and related ABB resources.
Important Notice: Confirm the complete article number and installed configuration before replacement. Each link opens in a new page.
TU860 must match the CI845 Ethernet FCI hardware and the engineered single/redundant arrangement.
Verify both incoming 24 V supplies and their supervision before inserting the communication modules.
Check Ethernet links, redundancy role, connected I/O and cabinet diagnostics after service.
