Overview
Manuals
Termination Role
Paired Electronics
Evidence Boundary
Features:
- Honeywell identifies 8C-TAIXA1 as a coated, non-redundant analog-input IOTA.
- The manufacturer associates it with both HART and non-HART single-ended 16-channel analog-input IOMs.
- 8C-TAIXB1 is the separately documented redundant IOTA, not the same assembly.
The Honeywell Series 8 specification names 8C-TAIXA1 directly in its I/O summary and detailed analog-input tables. It is the coated, non-redundant, 6-inch IOTA used with 8C-PAIHA1 HART and 8C-PAINA1 non-HART analog-input IOMs. The function matrix repeats that non-redundant pairing and contrasts it with redundant 8C-TAIXB1. The IOTA supplies field termination; the paired electronic IOM provides conversion and input processing. A figure such as 16 channels or 4-20 mA in the IOM table describes the complete I/O arrangement and should not be mislabelled as standalone processing performed by this IOTA.
For procurement, identify the installed Series 8 cabinet, analog-input IOM model, exact IOTA label, coating, non-redundant or redundant architecture, terminal arrangement, loop power and field drawings. The direct Honeywell PDF supports the 8C-TAIXA1 model and mating IOM categories but does not validate additional website number 51307127-175. That number must be checked from the supplied physical label or a Honeywell parts record. During authorized maintenance, document the original terminations and baseline channel diagnostics, follow isolation and ESD procedures, then test every affected analog input with its actual field circuit. Do not substitute the larger redundant IOTA on suffix similarity alone.
The 8C-TAIXA1 51307127-175 Honeywell Series 8 Non-Redundant Analog Input IOTA may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 8C-TAIXA1 51307127-175 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.
Honeywell names 8C-TAIXA1 as a coated, non-redundant analog-input IOTA. The manufacturer table places it beneath separate 16-channel analog-input IOMs rather than calling it the processing module. Its 6-inch designation helps distinguish the hardware from the 12-inch redundant 8C-TAIXB1. Confirm the actual cabinet position, terminal pattern and physical label before ordering.
The direct Honeywell PDF lists 8C-PAIHA1 HART and 8C-PAINA1 non-HART IOMs with 8C-TAIXA1. Their conversion, current-input and filter entries belong to the complete IOM/FTA path, not independently to the termination board. Verify which IOM and field supply the installed plant uses. Do not treat the HART and non-HART electronics as interchangeable merely because they share an IOTA option.
The official Honeywell PDF explicitly prints 8C-TAIXA1 and its non-redundant analog-input role, but it does not map additional site number 51307127-175. Check that number on the actual assembly or a manufacturer parts record. The document also identifies 8C-TAIXB1 as redundant hardware, so a similar model prefix does not establish a drop-in alternative. Verify revision, cabinet generation and field wiring before commissioning.
