OTHER BRANDS

1.Main Functions

16‑channel current signal acquisition: Receives standard 4‑20 mA analog current signals from field two‑wire transmitters, converts analog current signals into digital values recognizable by DCS controllers via high‑precision A/D conversion.More products: www.plcva.com
Field transmitter loop power supply: Provides 24 VDC loop power for on‑site 2‑wire pressure, flow, level and temperature transmitters.
Electrical isolation protection: Implements isolation between field side and DCS internal backplane circuit, suppresses industrial electromagnetic interference, prevents field surge and over‑voltage from damaging main control rack.

EDPF‑AI16(mA) 16‑Channel 4‑20 mA Analog Input Module

EDPF‑AI16(mA) 16‑Channel 4‑20 mA Analog Input Module

Circuit fault diagnosis: Detects transmitter open‑circuit, short‑circuit, over‑range and under‑range conditions; uploads fault alarm codes to DCS host for abnormal warning.
Backplane bus communication: Transmits converted digital process variables, channel status and diagnostic information to DCS controller through rack backplane bus.
LED status indication: Front‑panel LED indicators display module power status, running status and communication fault for fast on‑site troubleshooting.
Hot‑swap support: Supports online module replacement without shutting down the whole DCS control system, ensuring continuous production for process units.
Signal filtering: Built‑in digital filtering function, effectively filters field signal fluctuation and noise interference, improves sampling stability.plcva.com

EDPF‑AI16(mA) 16‑Channel 4‑20 mA Analog Input Module

Thermal power plant DCS system: Core analog acquisition I/O card for boiler, turbine and auxiliary equipment; collects process parameters including pressure, flow rate, liquid level and temperature.
Process‑parameter monitoring: Gathers measuring signals from field transmitters and uploads real‑time process data to HMI, alarm system and historical database for display, recording and trend analysis.
Closed‑loop regulation control: Provides measured‑value feedback for PID control loops of DCS, supports automatic regulation for valves, fans and pumps.
Power industry auxiliary‑system control: Applied for water‑treatment systems, ash‑removal systems and coal‑feeding systems in power plants.plcva.com
Spare‑part replacement & system retrofitting: Used for maintenance, failure replacement and upgrade of existing EDPF‑NT DCS installations in thermal power plants.