Overview
Manuals
Current and Voltage
HART Data Exchange
IOTA Mode Mapping
Features:
- 16 analog input channels with HART support and 16-bit A/D conversion.
- Documented 50 ms input scan; voltage and 4-20 mA ranges with IOTA-dependent wiring.
- Optional redundancy, self-diagnostics and open-wire detection; differential channel availability follows the IOTA model.
Honeywell identifies CC-PAIH02 as the Series C high-level analog input module with HART. It handles measurements from two-wire or self-powered transmitters through a compatible termination assembly. The manufacturer specifies 16-bit conversion, a 50 ms analog input scan and voltage ranges of 0-5 V, 1-5 V and 0.4-2 V, together with 4-20 mA measurement through a 250-ohm load. Multiple HART modems support information exchange with suitable smart instruments. The analog scan specification must not be interpreted as the update time of every HART variable or diagnostic message.
Input configuration must be checked against the IOTA rather than inferred from the module name alone. Honeywell's compatibility matrix assigns differential channels 13-16 to CC-TAIX01/11 and channels 1-16 to CC-TAID01/11. The documented common-mode limit is -6 to +5 V peak. Non-redundant and redundant assemblies, as well as dedicated GI/IS arrangements, have different installation requirements. Preserve the installed channel wiring, jumper arrangement, input range, controller configuration and compatible hardware revision. Retain the complete 51405038-375 marking for receiving inspection without assuming another suffix or a visually similar module is interchangeable.
The CC-PAIH02 51405038-375 Honeywell HART Analog Input Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-PAIH02 51405038-375 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Current measurements use the IOTA's 250-ohm load path; the manufacturer lists 4-20 mA and three voltage ranges. Voltage operation requires the appropriate channel jumper arrangement described in the original footnote and installation manual. Qualified personnel must follow the exact IOTA wiring instructions; do not assume every channel on every termination assembly has identical voltage or differential wiring.
The module supports HART-capable multivariable transmitters and uses multiple modems to collect instrument information. Analog measurement and HART communication are related but distinct functions. Confirm that the transmitter, channel configuration and installed system support the intended digital variables. The specified 50 ms analog input scan is not a guaranteed polling interval for all HART information.
CC-TAIX01 and CC-TAIX11 support differential use on channels 13-16, while CC-TAID01 and CC-TAID11 provide differential arrangements for channels 1-16. The suffix distinguishes non-redundant and redundant termination choices. GI/IS use requires the dedicated compatible IOTA and approved installation. Match channel mode and common-mode limits before assuming that two termination assemblies can be exchanged.
