CC-TAIX01 Honeywell High-Level AI Interface Module

Description

Product Model: CC-TAIX01
Product Brand: Honeywell
Product Series: Experion / Series-C I/O / IOTA Modules

Key Features:

• 16 analog input channels (non-redundant IOTA) supporting voltage/current signals.
• Accepts standard analog signal ranges (0–5 V, 1–5 V, 4–20 mA via 250 Ω, etc.) with jumper configuration.
• Low current draw (~0.320 A @ 24 V DC) and modest heat dissipation (~2.464 W) as per vendor data.
• Compatible with the Experion Series-C I/O architecture and integrates with IOTA / backplane wiring.

Product Role & System Fit

Within Honeywell’s Series-C / Experion / C300 distributed I/O architecture, analog input modules like CC-TAIX01 serve as the crucial interface between field sensors/transmitters and the control logic layer. Because it’s an IOTA analog input module, it plugs into the analog input I/O stack, connecting via a terminal board (I/O termination) to field wiring and supplying converted values to the DCS.

The designation “TAIX” suggests “T” for analog input, “AI” being analog input, and “X” indicating it’s a non-HART high-level analog input variant (versus “H” or “I”). Indeed, in the Experion Series-C I/O Specification document, the CC-TAIX01 / CC-TAIX02 modules are listed under “Analog Input – CC-TAIX01 / 02” as part of the analog input portfolio.

These modules are often installed with matching IOTA termination boards, in racks with other I/O (digital, universal, output modules). The CC-TAIX01 is non-redundant, meaning there is no internal redundancy on the analog input paths. That is acceptable in many standard control loops where analog inputs are not mission-critical.

Because the module supports standard voltage and current ranges, you can use it with most analog transmitters. However, you must set jumpers or wiring correctly, especially when mixing voltage and current modes on a single IOTA. Mis-jumpering can lead to measurement errors or signal saturation.

Technical Features & Benefits

Here are more in-depth details of CC-TAIX01 and engineering observations that come from usage in the field.

Channel Count & Signal Types

• It supports 16 analog channels, according to the I/O spec listing.
• These channels can accept analog voltage or current signals. For example, 4–20 mA signals are typically handled via a 250 Ω resistor in series, converting them into a voltage equivalent.
• For voltage mode, the module input impedance is high (on the order of megaohms) so that the module does not load the source.
• The module design includes jumpers or configuration elements to enable or disable the internal 250 Ω resistors for those channels used in current mode.

In practice, you must carefully map which channel wires are tied to current loops vs voltage sources and set jumpers accordingly. It’s not unusual in deployments to leave channels 13–16 or certain channels reserved for voltage-only signals—they may require special adjustments.

Power Consumption & Thermal

According to vendor listings, CC-TAIX01 draws 0.320 A at 24 V DC, which translates to ~7.68 W of electrical power. However, the vendor also lists heat dissipation 2.464 W which suggests internal regulation losses, etc.

These figures suggest that the module is somewhat power-hungry for an analog input board, so rack power budgeting must be considered when populating multiple modules. Heat dissipation must also be managed via ventilation to avoid thermal drift or stress.

Wiring & Pinouts

A pinout and wiring diagram document for CC-TAIX01 is available, showing how terminal blocks TB1 and TB2 map to channel return and power screws.

For instance:

• TB1 and TB2 each contain pairs: “channel return screw” and “power screw” (i.e. the input and return side)
• Channels are mapped sequentially: Channel 1 uses TB1 pins 1 and 2, Channel 2 uses pins 3 and 4, and so on. The document also describes wiring schemes for two-wire transmitters and how jumpers must be used for proper continuity.

When wiring in the field, maintain consistent polarity, shielded twisted-pair conductors, and keep analog leads away from noisy cables (power, motor drives). Because some channels may carry current-mode wiring, ensure the shielding and grounding are done carefully to avoid noise coupling or ground loops.

Accuracy, Noise, and Filtering

While I did not find a published absolute accuracy curve for CC-TAIX01 in the public spec I located, its sibling analog modules in the Experion spec (e.g. in the I/O spec) compete to have resolution and accuracy comparable to about ±0.075 % full scale (for analog channels) in stable thermal conditions.

Because of the analog nature, CC-TAIX01 probably includes:

• Internal filtering (RC or digital filtering) to smooth high-frequency noise
• Diagnostics such as open-wire detection or “bad PV” flags when input goes out of range
• Channel-to-channel crosstalk suppression, common-mode rejection, and design for isolation between field side and backplane

Practically, in a noisy installation, you might see small drifts or jumpiness unless cables are well-shielded and grounds properly handled. In applications requiring tight control, you should calibrate and check drift over temperature.

System Integration & Diagnostics

In the Experion / Series-C I/O spec, CC-TAIX01 is one of several analog input modules supported, and the system expects to interact with it via standard register maps, fault bits, and diagnostics.

The module likely supports:

• Fault indicators and status flags (channel fault, wiring fault, overrange/underrange)
• Module health bits (power OK, internal self-test pass/fail)
• Integration with the host DCS so that PVs and error statuses show in control graphics or logic

Because it’s non-redundant, if the module fails, analog input channels handled by it go offline. In high-availability systems, sometimes a redundant module (e.g. CC-TAIX11) is used— but you must check whether your rack and system support mixed or redundant analog input modules.

Technical Specifications Table

Here is a consolidated spec table based on public sources, wiring documents, and vendor listings. Use this as a starting point; always validate with your module’s nameplate.

Installation & Maintenance Insights

Based on field experience and the documented wiring diagrams, here are practical tips for deploying or servicing CC-TAIX01 modules.

Wiring & Jumper Configuration

• Carefully determine which channels will be current-mode (4–20 mA) and which will be voltage-mode. For current channels, ensure the 250 Ω resistor jumper is engaged; for voltage channels, that jumper must be removed (or bypassed) to avoid false loading. (The wiring document shows how jumpers are applied or cut for inputs.) Scribd
• Use shielded twisted-pair cables for analog inputs, and ensure shield is properly terminated (typically at one end) to avoid ground loops or EMI injection.
• Route analog wiring away from power or high-voltage lines to minimize induced noise.

Module Insertion & Rack Handling

• Insert or remove the module only when the I/O rack is powered down, or in a maintenance state—especially to avoid contact arcing or bus transients.
• Ensure the module is fully seated in the backplane connector and that its IOTA wiring terminals are clean and properly tight.
• Check for corrosion, bent pins, or foreign debris before insertion.

Commissioning & Calibration

• Apply known signals (e.g. 4 mA, 12 mA, 20 mA) to each channel to verify linearity and proper conversion.
• Use the host DCS diagnostics to detect open-wire, risky channels, or flagged errors.
• If drift or noisy readings appear, check wiring shield integrity, cable routing, or thermal stress on the module.

Fault Monitoring & Replacement Strategy

• Monitor module status bits for channel faults (e.g. overrange, wire break, internal error).
• Keep spare CC-TAIX01 modules (same revision) so that failed modules can be swapped quickly.
• Back up I/O configuration and scaling parameters so any replacement can be brought online with minimal disruption.
• If repeated failures occur, examine environmental conditions (temperature, vibration, EMI) and adjust enclosure or layout.