ABB

1.Function

1. RS485 Signal Conversion & Modem Transmission Convert baseband serial signals from the DCS controller into differential twisted-pair modem signals, and perform reverse conversion on the receiving side. It extends the communication transmission distance for Advant Fieldbus 100 network.
2. Differential Signal Transmission & Noise Suppression Adopt balanced differential transmission over twisted pair cable. Strong anti-electromagnetic interference capability for noisy industrial plant environments.
3. Fieldbus Data Relay & Repeater Function Act as a physical layer signal transceiver node on Advant Fieldbus 100, realize bidirectional data exchange between controller nodes and field equipment.
4. Bus Termination & Signal Conditioning Provide signal shaping and bus impedance matching, reduce signal attenuation and distortion during long-distance transmission.
5. Hardware Status Monitoring & Diagnostics LED indicators for power status, communication activity and link fault. Detect cable break, signal loss and module failure, report fault status to the DCS system.
6. Modular Hot-swap spare part Plug-in rack design. Can be replaced after power isolation without rewiring the whole control cabinet.

ABB 3BSE012632R1 TC516 RS485 Physical photo

2. Applications

• Installed in ABB Advant Master / Advant OCS DCS control cabinets, serving as the physical communication modem for Advant Fieldbus 100.
• Main purpose: Long-distance serial communication connection between DCS controller stations and field control units via twisted pair cables.
• Typical industries: Thermal power plants, pulp & paper, chemical, petrochemical, metallurgy and large process plants.