Technical Specifications Fieldbus physical interface, back‑plane bus data interface. Auxiliary power 24 V DC, typical power consumption 4.7 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated circuit board.
Functional Features Realizes fieldbus protocol data processing and conversion. Transmits control commands from controller to field bus devices. Uploads field equipment status and process data to main controller. On‑board LED indicates communication link and module operating status. Built‑in hardware self‑diagnosis detects bus communication faults.
Application Scenarios Communication spare‑part for ABB DCS and PLC automation systems. Widely used in petrochemical, water treatment and manufacturing industry automation projects.
Performance Parameters Real‑time stable bus data transmission performance. Effective fault identification for bus short‑circuit and interruption condition. Reliable data interaction under industrial electromagnetic interference environment.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board, protocol processing chip and signal isolation assemblies. Back‑plane plug‑in connector and fieldbus wiring terminals.
Structural Characteristics Standard plug‑in module structure for control rack. Front side equipped with bus wiring terminals and status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.44 kilogram.
Working Principle After power‑on, module completes hardware self‑test and communication protocol initialization. It exchanges data with main controller via back‑plane bus. Protocol conversion processing is executed for data packets. Signals are sent and received through fieldbus physical interface. Diagnosis circuit monitors bus link status continuously.
Installation Requirements Insert 3BDH000320R0101 into designated slot of control rack and lock fixing latch. Complete fieldbus cable wiring on front‑end terminals. Confirm back‑plane connector is fully engaged. Power on system and verify bus communication data interaction.
Usage Notes Follow fieldbus wiring specification, use matching bus cable. Terminate bus terminal resistor according to project requirement.
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