Technical Specifications Twisted‑pair communication interface, back‑plane bus interface. Auxiliary power supply 24 V DC. Typical power consumption 4.8 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Galvanic isolation voltage 1500 V AC between communication channel and back‑plane. IP20 protection grade.
Functional Features Establishes communication link between controller and remote S800 I/O stations over twisted‑pair medium. Front‑panel LED indicators display power, running and communication link status. Built‑in hardware self‑diagnosis function. Supports hot‑swap operation under system allowed state.
Application Scenarios Applied for distributed DCS control system of chemical industry, power plant and water treatment. Used for connecting remote S800 I/O stations away from main control rack. Suitable for project construction and spare‑part replacement.
Performance Parameters Maximum communication transmission distance reaches 1000 meters under qualified twisted‑pair cable condition. Communication bit rate keeps stable for distributed I/O data exchange. Self‑diagnosis rapidly captures link breakage and hardware fault.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Communication processing chip, galvanic isolation components. Reinforced plastic front‑panel housing. Copper‑alloy back‑plane plug‑in contact pieces. Screw‑type communication signal terminals.
Structural Characteristics Standard rack‑mount plug‑in module structure. Front panel equipped with LED status indicators and twisted‑pair signal terminals. Rear side connects rack back‑plane bus. Weight approximately 0.44 kilogram.
Working Principle After power‑on, module completes hardware self‑check and communication initialization. It receives controller data from back‑plane bus, converts data signal and transmits to remote I/O station through twisted‑pair cable.
Installation Requirements Insert module into designated rack slot and tighten locking screw. Connect 24 V DC auxiliary power supply. Complete twisted‑pair cable wiring according to engineering specification. Ensure cabinet protective grounding.
Usage Notes Take anti‑static protection during handling. Use shielded twisted‑pair cable for communication wiring. Separate communication cables from high‑voltage power cables. Periodically check terminal fastening and shielding grounding status.
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