2. Product Function Description

1. Signal Acquisition: Simultaneously collects standard 4–20mA primary process value + multi-variable digital auxiliary signals (temperature, compensation flow, sensor diagnostic data) superimposed via HART protocol from multi-variable flow, pressure, level transmitters.

2. Remote Instrument Management: Supports remote range modification, zero calibration, PID tuning, and complete instrument fault diagnosis of HART multi-variable transmitters through the DCS operation station.

3. Anti-interference Processing: Built-in multi-stage filtering and isolation circuits suppress long-distance cable electromagnetic interference and ground loop offset, ensuring high-precision transmission of multi-parameter signals.

4. Data Upload & Control: Converts all collected analog and digital multi-variable data into digital signals and transmits them to the UCN control network for real-time monitoring and closed-loop loop regulation.

5. Full Self-diagnosis: Real-time detection of loop open circuit, short circuit, transmitter offline, HART communication interruption, and hardware failure, with fault alarms uploaded to the upper monitoring station.

6. Redundancy Support: Compatible with dual redundant IOP rack configuration for high-reliability process control systems.

3. Core Electrical Technical Specifications

1. Supported Field Equipment: Multi-variable HART protocol loop-powered smart transmitters

2. Channel Capacity: 16 independent signal loops, supports multi-parameter extraction per loop

3. Communication Mode: HART digital signal superimposed on 4–20mA analog current loop

4. Power Supply: 24VDC power supply via HPM/APM rack backplane

5. Operating Temperature: -40℃ ~ +85℃ wide industrial temperature range

6. Protection Circuit: On-board TVS surge suppression, channel independent overvoltage/overcurrent protection

7. Self-diagnosis Items: Loop integrity detection, multi-variable signal abnormal alarm, communication error counting, IOP hardware status monitoring

8. Mechanical Parameter: Dimensions 68 × 162 × 165 mm, net weight approx 0.75kg

9. PCB Feature: Non-conformal coated circuit board, CE industrial safety certification

10. Hot Swap: Supports online hot swapping without shutting down the entire cabinet control system

11. Power Consumption: Max 2.1W

4. Industrial Application Scenarios

1. Chemical Industry: Multi-variable mass flowmeter, differential pressure flow transmitter signal acquisition for reactors and distillation towers; online instrument health prediction maintenance.

2. Power Industry: Boiler steam multi-parameter transmitters, flue gas flow compensation signal collection, real-time temperature/pressure auxiliary parameter monitoring.

3. Oil & Gas Industry: Pipeline custody transfer multi-variable flow transmitters, storage tank multi-parameter level/pressure/temperature integrated measurement.

4. General Process Control: Water treatment, pharmaceutical, energy storage plant multi-parameter intelligent instrument unified access and centralized remote calibration management.