Description
Honeywell CC-PDIH01
Technical Specifications Multi-channel high-speed pulse input; supports pulse signal from active and passive pulse transmitters; maximum pulse frequency input meets custody transfer application requirement; backplane power 24VDC; supports hot-swap operation; per-channel signal threshold configurable; operating temperature 0℃ to 60℃; storage temperature -40℃ to 85℃; relative humidity 5% to 95% non-condensing; rack slot mounting; UL, CE and Class I Division 2 certification.
Functional Features It captures rising or falling edge pulse signals from field metering instruments. It calculates real-time pulse frequency and converts frequency value into flow rate. It accumulates pulse quantity to generate total flow value. It supports dual pulse input for ISO6551 custody transfer integrity check. It detects pulse signal loss and channel fault. It uploads metering data and fault information to C300 controller and Experion operator station.
Application Scenarios Custody transfer flow metering for oil and gas pipeline DCS; turbine meter pulse signal collection for refinery flow measurement; batch metering pulse input for chemical plant reaction feeding control.
Performance Parameters Pulse counting resolution meets fiscal metering standard; signal edge capture jitter stays within specification; totalizer value retains in non-volatile memory during power interruption; fault diagnosis response matches metering scan period.
Material Composition Main circuit board uses multi-layer FR4 PCB with G3 conformal coating; high-speed counting logic chip is industrial FPGA; backplane edge connector is gold-plated contact pin; front panel is coated cold rolled steel; side locking hardware is spring steel.
Structural Characteristics Single-width vertical plug-in module for Series C rack; front panel with power, run, fault and channel status LED indicators; mechanical keying notch to prevent mismatched IOTA base; elastic latches on both sides for rack fixing; passive convection cooling.
Working Principle Field pulse transmitter signal is transmitted to matched IOTA termination base and sent to CC-PDIH01 through backplane connector. The FPGA chip samples signal edge continuously, counts pulse number and calculates frequency. The module stores accumulated total value in non-volatile memory. Valid flow rate and total data are transmitted to C300 controller via backplane bus. If pulse signal stops unexpectedly, the module generates signal loss alarm.
Installation Requirements Install the module together with matched pulse IOTA termination base into Series C rack. Use shielded twisted-pair cable for pulse meter wiring. Separate pulse signal cables and high-power AC cables. Configure pulse scaling factor and edge trigger mode in Experion engineering tool. Cabinet grounding resistance ≤4Ω.
Usage Notes Set correct signal voltage threshold matching field pulse transmitter type. Wear anti-static wrist strap during hot-swap operation. Verify totalizer reading with standard meter source after configuration. Do not apply high voltage signal to pulse input channels.
