CC-TUIO31 | Series C Universal I/O IOTA (9-Inch, for CC-PUIO31)

CC-TUIO31 is the field termination assembly — the IOTA — for Honeywell’s later Series C universal process I/O path. The plug-in electronics module that belongs on this board is CC-PUIO31, not CC-PUIO01. Buyers searching “universal I/O module” often need the IOP; this page is for the 9-inch, non-redundant base that lands the 32 field circuits. HKXY Instruments sources industrial automation hardware as a China trader with 15 years of export experience and is not the OEM.

What CC-TUIO31 actually is

Why the mate has to be CC-PUIO31

Honeywell’s Series C model table ties CC-TUIO31 and CC-TUIO41 exclusively to CC-PUIO31. The earlier universal IOP, CC-PUIO01, uses a different mechanical family: CC-TUIO01 (12 inch) and CC-TUIO11 (18-inch redundant). Those two IOTAs are not drop-in hardware for a CC-PUIO31 slot, and CC-TUIO31 will not accept CC-PUIO01 as a substitute electronics module. Confirm both the IOTA code and the IOP code on the installed nameplates before a replacement is approved.

Channel personality lives in the IOP. Through CC-PUIO31, each of the 32 circuits may be configured as analog input, analog output, digital input (including DISOE at 1 ms SOE resolution with a 20 ms PV scan), digital output, or pulse input on any four channels. Honeywell also documents open-wire detection, per-channel FAILOPT on analog and digital outputs, HART 7 on analog I/O with a HART modem per channel, a fast (priority) I/O module scan, and a module ambient range of −40 to +70°C. Those ratings describe the electronics, not a standalone function of this IOTA.

Field wiring and short-circuit behavior

EP03-490-520 notes that each signal can be shorted in the field without damage to the IOM or the IOTA, and that other channels on the same IOM remain unaffected. Analog input, analog output, and digital input channels are further described as protected and certified for energy-limited / nonincendive field wiring into Zone 2 / Division 2 locations — quote that packaging on a project only after you have checked the certificate set actually supplied with the hardware [TO CONFIRM against the local approval package]. Do not assume the IOTA alone carries the hazardous-area listing.

Purchase checks that are unique to this IOTA

• Match the exact string CC-TUIO31. A “close” code such as CC-TUIO41 changes redundancy and length; CC-TUIO11 changes the IOP generation.
• Record the IOP already mounted or specified — it should be CC-PUIO31, not CC-PUIO01.
• Note cabinet pitch: this is a 9-inch non-redundant board. A 12-inch redundant CC-TUIO41 will not occupy the same footprint.
• Send a nameplate photo so the material number, coating, and revision can be checked [TO CONFIRM].
• State quantity, destination, inspection scope, packing, and any export documents required. Availability, price, and lead time are quoted per inquiry — they are not listed on this page.

Related Series C assemblies

Use the links below for pairing or contrast only. A similar family name does not make two assemblies interchangeable.

• CC-PUIO31 — 32-channel universal IOP that mounts on CC-TUIO31 / CC-TUIO41
• CC-TUIO11 — 18-inch redundant UIO IOTA for CC-PUIO01, not for CC-PUIO31
• Experion PKS Series C module guide
• Series C I/O spare overview

FAQ

Is CC-TUIO31 a universal I/O module?
No. It is the termination assembly. The module (IOP) is CC-PUIO31.

Can I use CC-TUIO31 with CC-PUIO01?
Honeywell documents CC-PUIO01 with CC-TUIO01 / CC-TUIO11, not with CC-TUIO31. Treat that as a different mechanical family unless the project documentation says otherwise and engineering signs off.

When do I need CC-TUIO41 instead?
When the installation is the redundant 12-inch IOTA for the same CC-PUIO31 IOP. CC-TUIO31 is the 9-inch non-redundant board.

Does this page confirm stock or a price?
No. HKXY Instruments will confirm condition, inspection scope, and delivery against your quantity and destination after the exact codes are verified.

What should I attach to an RFQ?
A clear nameplate photo, the IOP code, redundancy requirement, and the number of IOTAs needed.