Overview
Manuals
Non-Redundant Role
Paired IOMs
Source Boundary
Features:
- Honeywell identifies 8C-TAIX51 as coated non-redundant AI IOTA.
- The manufacturer lists HART and non-HART analog-input IOM pairings.
- 8C-TAIX61 is the separate redundant 12-inch termination assembly.
The October 2011 Honeywell PlantCruise Series 8 specification names 8C-TAIX51 in its I/O hardware overview, detailed analog-input IOM tables and AI function matrix. It is the 6-inch coated non-redundant IOTA used with 8C-PAIH51 HART and 8C-PAIN01 non-HART electronics. The matrix distinguishes 8C-TAIX61 as a redundant 12-inch IOTA. This establishes a manufacturer-supported termination role but not a universal drop-in relationship between the two architectures. The 16-channel and current-input values in IOM tables describe the complete I/O arrangement rather than processing intrinsic to the IOTA.
Before procurement or maintenance, identify the installed Series 8 cabinet, actual IOM, physical IOTA label, field-power path, terminal pattern, channel wiring, coating and required redundancy. The manufacturer-authored PDF supports 8C-TAIX51 exactly but does not validate extra website number 51306979-175. Confirm that number from the actual assembly or Honeywell parts record. Record baseline channel and diagnostic states, follow site isolation and current Honeywell procedures, then verify every affected analog input and any configured HART communication through the paired IOM. Do not transplant a newer Series 8 model's specifications or a redundant IOTA's physical format onto this 2011 execution.
The 8C-TAIX51 51306979-175 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-TAIX51 51306979-175 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 prints 8C-TAIX51 as a coated 6-inch analog-input IOTA in the non-redundant column. The manufacturer prints 8C-TAIX61 separately as a redundant 12-inch IOTA. This matters for physical position, cabling and installed architecture. Do not infer that the two assemblies can be substituted because they share a TAIX prefix. Confirm the actual plant cabinet and field termination design.
The Honeywell PlantCruise tables pair 8C-TAIX51 with 8C-PAIH51 HART and 8C-PAIN01 non-HART input electronics. Their 4-20 mA signal and conversion figures belong to the electronic IOM and complete field path, not independently to the termination board. Determine which IOM, revision and loop power system is installed before applying a specification or testing a replacement.
The manufacturer-authored PDF names exact 8C-TAIX51 but does not map website number 51306979-175. Verify that additional number and board revision from a physical label or Honeywell parts record. The source is a 2011 PlantCruise specification hosted on a third-party mirror, so current Experion release compatibility should be checked separately. Preserve exact model, coating and redundancy evidence during procurement.
