Technical Specifications Operating Supply Voltage: 24 VDC ±10% Number of Input Channels: 8 independent input channels Input Signal Range: 4‑20 mA DC A/D Resolution: 16‑bit Sampling Rate: 100 Hz per channel HART Protocol Support: HART 5 / HART 7 Isolation: Channel‑group galvanic isolation Operating Temperature: 0 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mounting Form: S800 rack plug‑in installation Protection Class: IP20 Certifications: CE
Functional Features Acquires 8‑channel 4‑20 mA analog signal from field HART smart transmitters. Parallel reading of process value and HART instrument diagnostic, parameter and asset‑management data. Hardware open‑circuit and short‑circuit fault detection for current loops. Supports hot‑swap replacement without whole‑system power‑off. Front‑panel LED indicators show module power, running and channel fault status. All channel parameters configured via Control Builder M software. Seamless data integration with ABB 800xA asset management system. Full mechanical and electrical compatibility with S800 series rack and terminal base units.
Application Scenarios Petrochemical large‑scale DCS control system analog signal acquisition cabinet. Chemical plant smart transmitter HART instrument data monitoring. Power generation industry process control and equipment asset management project. AC 800M / 800xA DCS system spare‑part maintenance and replacement.
Installation Requirements Insert AI620 module into designated slot of S800 standard rack, assemble matched terminal unit. Complete cabinet protective earth connection strictly follow system grounding specification. Field HART instrument wiring adopts shielded twisted‑pair cables. Separate power‑cable and signal‑cable routing. Confirm field transmitter signal specification matches module input range before power‑on. Reserve cabinet internal ventilation space, avoid heat accumulation around module. Tighten terminal unit screws according to manufacturer‑recommended torque value. Ambient operating environment stays within defined temperature and humidity range without condensed moisture. Follow on‑site safety operation procedure when performing hot‑swap replacement work.
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