Description
HONEYWELL CC-PAOH01
Technical Specifications Backplane power supply from C300 rack Multi-channel 4-20mA analog output HART communication support Independent channel overcurrent protection Opto-electrical isolation between control side and field side Rack plug-in design compatible with C300 I/O rack
Functional Features Receive digital control value from C300 controller via backplane bus Convert digital signal into stable 4-20mA analog current output for field actuators Support HART communication to send parameter setting and read valve diagnostic status Electrically isolate DCS control circuit and field actuator circuit Detect output loop open circuit and short circuit fault Upload module hardware fault and channel loop fault to Experion operator station
Application Scenarios Chemical, oil refinery and power plant Experion PKS C300 DCS cabinets Control valve position regulation via 4-20mA signal Closed-loop process control for flow, pressure and temperature HART smart valve positioner control
Performance Parameters Operating temperature range 0℃ to 60℃ Relative humidity 5% to 95%, non-condensing High analog output precision Stable current output under long time continuous operation Comply with industrial EMC anti-interference standard
Material Composition FR-4 multilayer printed circuit board Gold-plated backplane edge connectors Digital-to-analog conversion chips HART modulation and demodulation circuit Current limiting and surge protection components Flame retardant anti-static plastic front panel
Structural Features Standard rack plug-in card structure Front panel fitted with LED indicators for power, running and fault status Rear gold fingers connect rack backplane bus Anti-reverse insertion positioning notch Model number printed clearly on card surface Work with matched FTA terminal base for field actuator wiring
Working Principle Digital control value sent from C300 controller transmits to module through backplane bus. Digital-to-analog converter converts digital value into corresponding analog current signal. The analog current outputs to field valve positioner through FTA terminal base. HART circuit superimposes digital HART signal onto 4-20mA current loop for bidirectional communication with smart valve. Onboard diagnostic circuit continuously monitors output loop current and detects open or short circuit condition.
Installation Requirements Wear anti-static wrist strap during installation and removal Insert card fully into rack slot and tighten fixing screw Complete field actuator wiring on matched FTA terminal base Cabinet protective grounding must be qualified Use shielded twisted pair cable for analog output signal wiring Verify hardware version compatibility with C300 controller firmware
Precautions for Use Do not plug or unplug the module under power-on state Check load resistance of each output channel before commissioning Do not connect high voltage signal to analog output terminals Inspect shield cable connection and terminal tightness periodically Confirm HART communication parameters after module replacement
