Technical Specifications High‑density multi‑channel analog input, signal range 4‑20 mA. Back‑plane controller bus interface. Auxiliary power 24 V DC, typical power consumption 4.1 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Group‑wise channel galvanic isolation.
Functional Features Collects multi‑group analog measurement signals from field transmitters. Completes analog‑digital conversion and transmits digital data to main controller via back‑plane bus. Front‑panel LED indicates module operation and fault status. Built‑in hardware self‑diagnosis detects field loop open‑circuit and internal hardware abnormality.
Application Scenarios High‑density analog input spare part for ABB Advant DCS system. Used for process‑control cabinets requiring massive analog‑point acquisition.
Performance Parameters Multi‑channel parallel sampling performance. Accurate analog‑digital conversion. Reliable loop fault diagnosis function.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Multi‑channel analog‑digital conversion and signal isolation assemblies. Back‑plane plug‑in connector and field signal terminals.
Structural Characteristics Standard rack plug‑in module. Front side equipped with multi‑point field analog signal terminals and status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.40 kg.
Working Principle Field analog current signals access each channel terminal. Signals go through isolation and analog‑digital conversion circuit, digital measurement data is encoded and uploaded to controller via back‑plane bus. Diagnosis circuit monitors each channel loop status and module hardware condition continuously.
Installation Requirements Disconnect rack auxiliary power before replacement. Insert DSTA180 into target rack slot and lock fixing latch. Connect field instrument wiring to front‑end terminals. Confirm back‑plane connector is fully engaged. Restore power supply, calibrate each analog channel and verify sampling precision.
Usage Notes Follow terminal definition for field instrument wiring. Avoid analog channel short‑circuit. Hot‑plug operation under powered condition is prohibited. Complete multi‑point calibration after installation.
There are no reviews yet.