Overview
Manuals
IOM Pairing
Field Termination
Redundancy Proof
Features:
- Redundant coated single-ended analog-input termination assembly.
- Nominal 12-inch installed IOTA for sixteen-channel Series 8 paths.
- Pairs with HART-capable or non-HART single-ended analog-input IOMs.
8C-TAIXB1 is the coated redundant Series 8 IOTA for sixteen single-ended analog-input channels. Honeywell's model table and function matrix pair it with 8C-PAIHA1 for HART-capable current input or 8C-PAINA1 for the non-HART execution. The IOTA supplies the installed field terminals and redundant electronic-module interface; it does not perform analog-to-digital conversion, define scan rate or provide the IOM's accuracy and diagnostic specifications.
Honeywell identifies the redundant 8C-TAIXB1 as a nominal 12-inch IOTA. That figure describes installed termination-assembly length, not a packed carton dimension. Replacement requires the same redundancy architecture, exact terminal assignment, loop-power selection, grounding, shield practice, cabinet space and approved electronic modules. Record the complete 51307129-175 marking and every conductor before removal. The nonredundant 8C-TAIXA1 is a different arrangement and is not an automatic physical substitute.
The 8C-TAIXB1 51307129-175 Honeywell Series 8 Redundant Single-Ended 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-TAIXB1 51307129-175 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.
Use the termination assembly only with the approved single-ended Series 8 analog-input electronic module and controller release. Select the HART-capable or non-HART IOM according to the engineered design. Confirm both redundant module positions, hardware revisions, firmware, database and intended loop functions before ordering.
Photograph and label every channel, polarity, shield, common and loop-power source before disconnecting the IOTA. Preserve the sixteen-channel single-ended arrangement, approved grounding and cable routing. The nominal 12-inch value describes installed IOTA length and must not be used as a packed-carton dimension.
After replacement, inspect keying and terminal torque, then perform authorized loop checks through both paired electronic modules. Verify low, mid and high signal values, engineering-unit scaling, alarms, HART communication where configured, channel quality and redundant path transfer before returning each measurement to plant service.
