Honeywell CC-PAIX01

Technical Specifications​

Channels: 16 total, 12 single-ended and 4 differential

Input ranges: 4-20 mA through 250 Ω, 0-20 mA through 250 Ω, 0-5 V, 1-5 V, 0.4-2 V

A/D resolution: 16 bits

Input scan rate: 50 ms

Accuracy: ±0.075% full scale at 23.5°C ±2°C, ±0.15% full scale from 0°C to 60°C

Common-mode rejection: 70 dB dc to 60 Hz with 500 Ω source imbalance

Normal-mode rejection: 19 dB at 60 Hz

Input impedance, voltage mode: greater than 10 MΩ powered

Differential overload limit: ±30 V without damage

Channel crosstalk: -60 dB dc to 60 Hz

Backplane power: 24 VDC Series C chassis supply

HART support: no native HART communication

Functional Features​

Extensive self-diagnostics, open-wire detection, bad-process-variable detection, optional redundancy, non-incendive field power conditioning and fast loop scanning. Differential channels provide improved common-mode noise rejection.

Application Scenarios​

Pressure and differential-pressure transmitter input, temperature transmitter input, flow and level measurement, non-HART analyzer signals, power and water-treatment process variables, refinery and chemical plant analog gathering.

Performance Parameters​

Full-scale accuracy is maintained within 0°C to 60°C operating ambient for the stated hardware specification. Single-ended channels suit grounded or local-reference transmitters; differential channels suit long cable runs and high-common-mode sites.

Material Composition​

Printed circuit board with industrial conformal-coating options, surface-mount analog front end, 16-bit ADC devices, metal backplane connector and plastic faceplate with status LEDs.

Structural Characteristics​

Vertical plug-in PWA for Series C I/O carrier. Electronic circuitry is separated from field wiring by an IOTA termination base. Screw-terminal or spring-terminal field connection is provided on the IOTA, not on the module.

Working Principle​

Field current develops a voltage across the 250 Ω resistor for 4-20 mA inputs. Voltage inputs pass through high-impedance conditioning. The 16-bit ADC samples each channel, digital filters reject normal-mode noise and the module transmits calibrated digital values to the C300 controller over the Series C backplane.

Installation Requirements​

Seat CC-PAIX01 in the assigned Series C carrier slot and mate it with the correct IOTA, such as CC-TAID01 for simplex differential termination or CC-TAID11 for redundant differential termination. Install 250 Ω jumpers for current inputs and remove or cut the jumper for direct voltage inputs according to the IOTA instruction. Use shielded field cable sized per the IOTA terminal specification and ground the shield at the defined cabinet ground bar.

Usage Precautions​

De-energize the carrier and IOTA before module insertion or removal. Do not use CC-PAIX01 for HART digital communication; select a HART-capable analog input module and IOTA instead. Respect common-mode voltage limits, differential overload limits and transmitter loop polarity. Verify single-ended versus differential channel assignment in the control database before commissioning.