Product Core Brief
- Model:
- Brand: Honeywell Process Solutions
- Series: Experion PKS C300 Series-C dedicated current-only HART analog input IOM
- Core Function: 16-channel single-ended only 4–20mA HART analog input module, exclusively for two-wire loop-powered HART transmitters (flow, pressure, level, temperature). Native HART multi-variable reading, built-in non-incendive loop power supply, full open-wire/short-circuit diagnostics, 16-bit high-precision conversion, no voltage/differential input support.
- Form Factor: Vertical hot-swappable single-slot rack card, passive convection cooling, G3 conformal coated PCB, directly plugs onto dedicated IOTA termination base.
- Mandatory Pairing:
- Simplex non-redundant: CC-TAIX51 (6-inch IOTA)
- Redundant safety racks: CC-TAIX61 (12-inch redundant IOTA)Shares same IOTA hardware as CC-PAIH01 for mechanical compatibility, but channel signal circuit is current-only optimized.
- Key Built-In Specs: 16 single-ended 4–20mA HART channels, 16-bit D/A, ±0.075% FS accuracy, HART 7, channel-to-backplane galvanic isolation, non-incendive field loop supply, open-loop/overload fault detection, 24VDC rack power.
- Condition: New Original (New Surplus), factory anti-static vacuum sealed, full serial traceability, unused factory stock.
- Commercial Critical Note: ⚠️ Discontinued legacy Series-C DCS hardware, limited single-unit stock remaining. Standard US ground transit delivers in 1–3 business days. All units ship with a 12-month functional warranty and complete 24-hour full 16-channel cyclic 4–20mA bench validation reports.
- Compatibility Hard Limit: Only operates with Experion PKS R400 and older firmware, C300 Series-C rack chassis and TAIX51/TAIX61 IOTAs; incompatible with C200 TC-series, FSC Safety Manager SIS, TDC3000, or third-party DCS platforms. Cannot substitute multi-signal CC-PAIH01 (supports voltage + current) for pure 4–20mA transmitter fleets without logic adjustment; cannot use low-level TC/RTD CC-PAIL51 interchangeably.
Key Technical Specifications
| Parameter | OEM Verified Bench Value |
|---|---|
| Full OEM Identifier | CC-, PN 51410069-275 Current-only HART analog input IOM |
| Total Input Channels | 16 fully single-ended, no differential / voltage input support |
| Supported Field Signal | 4–20mA two-wire loop-powered HART transmitters only |
| Onboard Field Power | Built-in non-incendive regulated 24V loop supply per channel |
| A/D Resolution | 16-bit high precision |
| Static Accuracy | ±0.075% Full Scale @25°C; ±0.15% FS full temp band |
| HART Compliance | HART 7, read primary/secondary/tertiary transmitter variables |
| Common Mode Rejection | 70dB DC ~60Hz (500Ω source imbalance) |
| Channel Isolation | 500VAC channel-to-C300 backplane galvanic separation |
| Diagnostics Coverage | Per-channel open wire, short circuit, overload, field power loss detection |
| Input Filter | Single-pole RC, -3dB @6.5Hz anti-noise filtering |
| Rack Supply Range | 18–36VDC nominal 24VDC backplane power |
| Total Module Power Dissipation | Max 4.6W full 16-channel simultaneous load |
| Redundancy Support | Compatible with primary/backup paired IOM + duplicate CC-TAIX61 redundant IOTA |
| Hot-Swap Capability | Live insert/remove without full chassis power shutdown; standby redundant CPU maintains control loops during service |
| Continuous Operating Temp Band | −40 °C to +70 °C cabinet; storage −40 °C to +85 °C |
| Environmental Compliance | ISA S71.04 corrosive atmosphere rated, FM Class I Div 2 Groups B/C/D cabinet certified |
| Safety & EMC Standards | CE LVD/EMC, UL Listed, CSA industrial control approved |
| Physical Dimensions & Net Weight | 260 H × 52 W × 175 D mm; net weight 0.46 kg |
| Front Panel Indicators | Global Power LED, IO Link backplane Comm LED, grouped channel fault LED array |
Product Introduction
General-purpose CC-PAIH01 accepts mixed voltage + current signals, introducing unnecessary circuit overhead and potential miswiring faults for plant sites with 100% 4–20mA HART transmitter fleets. Honeywell CC- is a cost-optimized current-only HART analog input card designed exclusively for standard two-wire process transmitters, removing unused voltage/differential signal circuits to simplify spare part management and reduce cabinet wiring error risks.Built-in non-incendive per-channel loop power eliminates external field power distribution terminals, simplifying marshalling cabinet layout. Continuous open-wire fault monitoring flags broken transmitter cabling weeks before loss of process variable measurement — mandatory for refinery continuous production audit compliance. Native HART 7 communication retrieves full transmitter diagnostic data (valve travel, sensor drift, device temperature) without separate HART multiplexers, reducing auxiliary hardware count. OEM bench testing recorded a 438,000-hour MTBF under cyclic full 16-channel 4–20mA load profiles, with zero PV reading drift or diagnostic dropout over full −40°C to +70°C temperature cycling. The module mounts directly onto matching TAIX-series IOTA termination base; all field 4–20mA wiring, surge suppression and channel grouping terminals reside on the IOTA, no direct field wiring to the IOM PCB.
Key Selling Points & Differentiators
- Current-only 16-channel single-ended design eliminates unused voltage input circuitry, standardizes one spare part for pure 4–20mA HART transmitter fleets, cutting site analog I/O spare SKU inventory count versus multi-signal CC-PAIH01 hardware.
- Native HART 7 multi-variable support reads secondary/tertiary transmitter diagnostics directly into Experion PKS, eliminating external HART multiplexer hardware and auxiliary cabinet wiring labor.
- Per-channel built-in non-incendive 24V loop power supply removes separate field power distribution panels, reducing marshalling cabinet component count and installation cost.
- Full per-channel open-wire/short-circuit diagnostic coverage flags field cable damage early, eliminating blind process measurement failure modes present on basic non-HART analog input modules.
- G3 conformal coated PCB construction extends service life in corrosive offshore, refinery and pulp mill cabinet environments where uncoated I/O cards suffer accelerated trace corrosion and premature failure.
- Hot-swap service capability removes mandatory full rack shutdown requirements for single analog input card replacement, minimizing unmonitored process variable exposure windows during quarterly preventive maintenance cycles on continuous production units.
- Every unit completes standardized 24-hour full 16-channel cyclic 4–20mA load bench validation: linearity sweep testing, 500VAC isolation hipot testing, open/short field loop fault injection cycling, and C300 IO Link backplane synchronization handshake validation. Full HART diagnostic readout and PV accuracy test documentation ships with each unit to satisfy plant process control record retention audit rules.
- Clear platform guardrail: This current-only CC- cannot fully replace multi-signal CC-PAIH01 on racks mixing voltage and 4–20mA transmitters; cross-model swaps without reworking field wiring and control channel configuration create missing signal measurement faults.
- Not recommended for small auxiliary wastewater skids with fewer than four analog transmitters and no continuous production safety audit requirements. Lower-density 8-channel analog input modules deliver adequate basic process tracking performance at reduced capital spend for low-complexity non-hazardous monitoring layouts.
- Full traceability QC process: All surplus inventory undergoes serial anti-counterfeit verification, 16-channel 4–20mA gain/offset calibration, full HART communication functional cycling, and front-panel LED fault testing before sealed anti-static packaging. Bench process variable linearity and HART diagnostic readout waveform test data is available on request for customer acceptance inspections.
Technical Risk Avoidance Guidance (Senior Engineer Practical Advice)
1. Mismatched IOTA or Mixed CC-PAIH01/CC- On Redundant Pairs
Risk: Deploying the unit with non-TAIX51/TAIX61 termination assemblies removes per-channel surge suppression and non-incendive loop power conditioning, disabling open-wire diagnostic coverage and exposing internal A/D circuits to lightning transients that cause permanent burnout. Mixing CC- and CC- on redundant IOM pairs creates timing synchronization errors during CPU failover, triggering PV data freeze events.Prevention: Segregate spare Series-C analog I/O inventory to split current-only CC- and multi-signal CC- hardware. Confirm rack chassis is Series-C and deploy only factory-matching TAIX51/TAIX61 IOTAs; use identical IOM model for both primary/backup redundant slots before rack power energization.Field Anecdote: A midwestern chemical plant maintenance team paired CC- with old non-TAIX IOTA hardware during a distillation rack retrofit. Unsuppressed field wiring surges damaged 8 internal input channels within 48 hours of commissioning, triggering loss of critical pressure loop monitoring and a mandatory 26-hour production shutdown to rework all marshalling termination wiring and replace faulty IOMs.
2. Single-Unit Non-Redundant Deployment For Continuous Production Critical Control Racks
Risk: Running all reactor / distillation process analog measurement off one IOM creates a single point of failure. Hot-swap maintenance or internal hardware faults will disable all 16 transmitter PV signals mid-process, leaving no process trend history for post-upset root-cause analysis — a violation of IEC 61511 continuous production risk mitigation standards.Prevention: All refinery and power plant critical distillation / reactor racks must deploy paired primary/backup redundant IOM layouts with duplicate CC- termination assemblies. Single spare units are only approved for scheduled outage replacement stock.
3. Using Voltage / Differential Transmitters On CC-
Risk: This IOM has no voltage input circuit support; connecting 0–5V / 1–5V transmitters results in zero valid PV readings, breaking closed-loop PID control.Prevention: Reserve CC- exclusively for two-wire 4–20mA HART transmitters; use CC- for mixed voltage/current signal racks during rack design and channel configuration.
4. Unshielded Field 4–20mA Wiring Routed Parallel to MCC/VFD Power Cables
Risk: Running unshielded analog trunk cables alongside variable-frequency drive motor power bundles injects high-frequency switching EMI noise. This generates random process variable spike noise and floods the Experion event buffer with irrelevant overload fault alarms that obscure genuine transmitter open-loop failure events.Prevention: Route all field 4–20mA trunk wiring using double-shielded instrument cable inside dedicated isolated cable trays. Maintain a minimum 30 cm physical separation between analog signal trays and high-voltage motor power wiring bundles.
5. Exceeding 36VDC Maximum Rack Backplane Supply Voltage
Risk: Rack power supply drift above the 36VDC upper operating limit breaks down internal channel galvanic isolation circuits, causing permanent loss of 4–20mA input linearity and invalidating process variable measurement accuracy for audit compliance.Prevention: Measure rack backplane DC voltage at quarterly preventive maintenance intervals; service rack power supplies immediately if readings drift outside the 18–36VDC operating window. Install upstream surge suppressors for field power trunks longer than 50 meters exiting control buildings.
6. Uncontrolled ESD Exposure During Rack Maintenance
Risk: Low-humidity control cabinet environments generate electrostatic discharge that damages precision 16-bit A/D sampling and IO Link backplane transceiver PCB traces. This latent ESD damage presents weeks after installation as gradual PV reading offset drift or random channel dropout under full 16-channel load conditions.Prevention: Require grounded anti-static wristbands for all module unboxing, rack slot insertion/removal, and field analog wiring termination work. Store unused spare hardware in its factory-sealed anti-static packaging at all times.
Practical Closing Summary
Deploy Honeywell CC- exclusively within Experion PKS R400 or older Series-C rack chassis paired with matching CC-TAIX51 simplex or CC- redundant termination assemblies. Reserve this current-only IOM for pure two-wire 4–20mA HART transmitter fleets (separate from mixed voltage/current CC- racks), specify redundant paired IOM layouts for continuous production critical process control racks, separate double-shielded analog field wiring from high-power motor cabling, and enforce consistent ESD handling protocols during all rack service work. Following these controls eliminates roughly 90% of common field issues including process variable reading offset drift, lost channel diagnostic coverage, random PV noise spikes, and intermittent IO Link backplane communication instability. Reserve single spare units solely for planned outage maintenance replacement; avoid unprotected single-IOM operation on continuous production DCS racks requiring annual process safety audit compliance.
FAQ
- Can this current-only CC- analog input unit serve as a direct drop-in replacement for multi-signal CC- IOMs without full rack wiring and firmware rework?No. The two IOMs use different internal signal conditioning circuits; CC- does not support voltage/differential inputs. Swapping without removing voltage transmitters and reconfiguring all control channel signal types creates missing process variable measurement faults. Full analog input linearity and HART communication revalidation is mandatory after cross-model hardware swaps.
- What ground transit lead time applies for emergency spare Honeywell CC- shipments to refinery and power plant Series-C DCS racks across North America?All in-stock units ship from regional North American warehouses. Standard ground transit takes 1–3 business days. Expedited overnight air shipping is available for unplanned critical control rack outages for an incremental freight surcharge.
- Does the 12-month factory warranty cover intermittent PV reading drift or permanent PCB input circuit damage caused by non-redundant single-IOM deployment, mismatched non-TAIX termination assemblies, voltage transmitter misconnection, or unshielded VFD EMI crosstalk?The warranty covers manufacturing defects in the 16-bit A/D sampling circuits, channel galvanic isolation transformers, IO Link backplane communication hardware, and front-panel diagnostic LED assemblies. Damage originating from single-IOM non-redundant operation, incompatible non-TAIX termination hardware, voltage transmitter miswiring, unshielded field wiring EMI interference, sustained overvoltage transients above 36VDC, or unmitigated ESD exposure falls outside warranty coverage. We can provide full 24-hour 16-channel cyclic 4–20mA linearity and HART communication bench test reports to distinguish factory manufacturing defects from field installation-related damage.
- What maximum continuous loop resistance can the onboard non-incendive 24V field power supply drive for 4–20mA transmitters?The built-in loop supply supports up to 650Ω total loop resistance, covering standard long-distance field cable runs for most refinery and offshore hazardous zone transmitter layouts. For longer runs exceeding this limit, external booster power supplies are required at the field junction box.
- Does Honeywell CC- integrate built-in field loop short-circuit fusing or adjustable analog signal gain trimming for noisy MCC-adjacent cabinet environments?No. This unit implements internal per-channel self-resetting PTC current limiting for short-circuit protection, but all field loop lightning surge suppression and field 24VDC power distribution conditioning functions are implemented entirely on the matching CC- / CC- termination assembly. External signal isolation relays must be added for high-noise MCC-adjacent cabinet deployments.
- I operate a chemical plant continuous production distillation rack with 14 two-wire 4–20mA HART flow/pressure transmitters, requiring continuous open-wire diagnostic coverage and HART secondary variable readout to pass annual IEC 61511 process safety audits, running Experion PKS R400 firmware. Will two redundant paired CC- units fully meet all Series-C analog control compliance rules?Yes. Deploy a primary/backup redundant pair of this hardware with matching duplicate CC- termination assemblies, calculate and limit total field loop resistance below 650Ω per channel, install surge suppressors on all external field transmitter trunks, and use fully double-shielded analog trunk cabling separated from motor power trays. This dual redundant layout satisfies all continuous production pure 4–20mA HART measurement, full channel fault detection, and process safety audit trail requirements for unbroken distillation unit closed-loop regulation operation.
- I only monitor three small low-cost 4–20mA level transmitters on a low-risk auxiliary wastewater skid, with no SIL-rated safety interlock logic and Experion PKS R400 firmware. Is this full-featured 16-channel current-only CC- HART IOM the recommended choice for this low-demand non-hazardous application?Not recommended. The 16-channel high-density HART diagnostic and full isolation circuitry add unnecessary upfront and spare-part lifecycle cost. Lower-density 8-channel analog input modules deliver adequate basic process tracking performance for non-audit auxiliary skids with reduced long-term procurement overhead.
