Technical Specifications
Number of input channels: 16. Input signal type: 4-20mA DC current. Resolution: 16-bit. System accuracy: ±0.1% of full scale. Isolation: 500V AC channel-to-bus. Backplane current draw: 350mA @ 5V DC. Power dissipation: 1.8W maximum. Operating temperature range: 0°C to +60°C. Storage temperature range: -40°C to +85°C.
Functional Features
Sixteen-channel high-density current input maximizes I/O per slot. Built-in signal conditioning and digital filtering suppress electrical noise. Open-circuit detection function per channel. Hot-swap capability enables module replacement without system shutdown. Per-channel status indicators provide real-time operating status.
Application Scenarios
It acquires process variable signals from field transmitters for DCS systems in power generation, petrochemical refining, chemical processing and heavy manufacturing industries.
Performance Parameters
Input update rate: 100ms per channel. Common mode rejection ratio: 120dB @ 60Hz. Temperature drift: ±25ppm/°C. Operating temperature range: 0°C to +60°C. Vibration resistance: 2G @ 10Hz to 500Hz. Shock resistance: 30G, 11ms half sine.
Material Composition
Housing: UL 94 V-0 flame-retardant PBT plastic. Circuit board: FR-4 glass epoxy substrate. Connectors: gold-plated copper alloy.
Structural Characteristics
It adopts standard CENTUM card form factor with front panel status LEDs, rear backplane connector, and card guide rails for chassis mounting.
Working Principle
It receives 4-20mA current signals from field transmitters, converts them to precision voltage signals, conditions and digitizes the signals via high-resolution ADC, and transmits the measurement data to the CENTUM controller via the system backplane.
Installation Requirements
Install in any available I/O slot of a CENTUM CS chassis. Ensure the module is fully seated in the card guide and backplane connector. Use shielded twisted pair cables for field wiring, grounded at the system side only. Configure channel parameters via CENTUM engineering workstation.
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