Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell Process Solutions |
| Model Number | CC-TAON01 |
| Product Family | Experion PKS C-Series I/O — AO IOTA |
| Module Type | Analog Output IOTA (field termination + signal conditioning) |
| Typical Application | 4–20 mA analog output to control valves, positioners, drives |
| Channel Capacity | 16 channels typical |
| HART Support | Yes, when paired with CC-PAOH01 AO module |
| Redundancy | Supports redundant AO configuration per C-Series I/O rules |
| Compatible AO Modules | CC-PAOH01 (HART), CC-PAOX01 (non-HART) |
| Power | 24 VDC from C-Series I/O bus |
| Wiring | Removable terminal blocks; top/bottom field wiring |
| Software Environment | Experion PKS / ControlBuilder |
| Availability | Surplus / refurbished; availability varies by revision |
Product Introduction
Series C IOTAs are not passive terminal blocks. They carry signal conditioning, field power distribution, and redundancy logic inside the C300 I/O rack. The CC-TAON01 sits in that role for analog output channels: it accepts a C-Series AO module, presents removable field terminals, and routes 4–20 mA outputs to final control elements.
This IOTA is typically used with CC-PAOH01 or CC-PAOX01 analog output modules in an Experion PKS C300 station. It supports 16 channels and can participate in redundant AO configurations when the station is engineered for redundancy. For maintenance teams, the practical value is straightforward: it replaces a failed AO IOTA without re-terminating an entire rack. For engineering, it remains a configuration-sensitive component — channel mapping, redundancy pairing, and HART enablement must be confirmed before returning the loop to service.
QA/QC Transparency SOP
- Intake & Identity Verification — Record CC-TAON01, serial number, and any PCB revision. Confirm it is an AO IOTA and not a DI, DO, or AI IOTA. Reject units with damaged terminal blocks, burnt traces, or missing labels.
- Live Functional Testing — Install the IOTA in a compatible C-Series test rack with a known-good AO module. Verify backplane power, module recognition, and channel continuity.
- Electrical Parameter Tests — Measure 24 VDC bus voltage, channel output continuity, and terminal block integrity. Check for shorted channels, open circuits, or unstable field power.
- HART & Redundancy Verification — If paired with CC-PAOH01, confirm HART communication on at least one channel. For redundant configurations, verify both AO modules seat correctly and the IOTA supports dual-module operation.
- Final QC & Anti-Static Packaging — Apply ESD bag, moisture barrier, and configuration label. Ship with test summary, nameplate photos, and channel test results.
Field Engineer Gotchas
- IOTA vs. AO Module Confusion — CC-TAON01 is the IOTA, not the AO module. The AO module (CC-PAOH01/CC-PAOX01) plugs into it. Solution: confirm both parts are present and compatible.
- Redundancy Pairing — Redundant AO requires two AO modules in one IOTA. Installing a single module in a redundant-configured channel will cause a fault. Solution: verify the station configuration matches the hardware.
- HART Enablement — HART only works with CC-PAOH01. CC-PAOX01 does not support HART. Solution: confirm the installed AO module before expecting HART communication.
- Channel Mapping Drift — After IOTA replacement, channel addresses may shift if the rack was re-sequenced. Solution: verify channel assignments in ControlBuilder before forcing outputs.
- Field Wiring Polarity — 4–20 mA loops are polarity-sensitive. Reversed wiring causes zero output or communication failure. Solution: verify loop polarity with a multimeter before energizing.
Honeywell CC-TAON01
Application Scenarios
- Control valve output replacement — Restoring 4–20 mA output channels to control valves after IOTA failure in a C300 station.
- HART device maintenance — Supporting smart positioners and transmitters when the AO IOTA develops intermittent channel faults.
- Redundant AO restoration — Replacing a failed AO IOTA in a redundant configuration where both primary and secondary AO modules must remain synchronized.
- Turnaround spare provisioning — Keeping a verified CC-TAON01 on site to reduce loop downtime during planned outages.
FAQ
1. Is CC-TAON01 an AO module or an IOTA?
It is an AO IOTA — the field termination and signal conditioning assembly. The AO module (CC- or CC-PAOX01) plugs into it.
2. How many channels does it support?
Typically 16 channels, consistent with C-Series AO IOTA design. Verify from the physical label and installed AO module.
3. Does it support HART?
Yes, when paired with CC-. CC-PAOX01 does not support HART.
4. Can it be used in redundant configuration?
Yes. C-Series AO IOTAs support redundant AO modules when the station is engineered for redundancy.
5. What power does it require?
24 VDC from the C-Series I/O bus. No separate field power supply is typically required for standard 4–20 mA loops.
They belong to the same AO IOTA family. However, revision and connector differences may exist. Verify mechanical fit and channel mapping before treating them as drop-in replacements.
7. Do you provide channel testing?
We can verify channel continuity, output range, and HART communication when tested with a compatible AO module in a C-Series test rack. Final loop validation must be confirmed by the site controls engineer.
