中文版
Phone: 
Email: 
WhatsApp: Description
- Model: CC-PAIH51
- Brand: Honeywell
- Series: Experion Series C I/O
- Core Function: Acquires 4–20 mA transmitter signals with HART
- Type: High-Level Analog Input Module
- Key Specs: 16 single-ended channels, 16-bit A/D, 50 ms scan
- Input: 4–20 mA through 200 Ω
- HART: One modem for smart transmitter communication
- Associated IOTAs: CC-TAIX51 non-redundant / CC-TAIX61 redundant
Product Introduction
The Honeywell CC-PAIH51 is a 16-channel High-Level Analog Input (HLAI) module for Experion Series C I/O. It accepts 4–20 mA signals from 2-wire or self-powered transmitters and provides HART communication for compatible smart field devices. Honeywell specifies single-ended current inputs only, with no differential or voltage-input mode.
The hardware uses a 16-bit A/D converter and scans all channels in 50 ms. Accuracy is specified at ±0.075% of full scale around room temperature and ±0.15% across 0–60 °C. It can be installed with CC-TAIX51 for non-redundant applications or CC-TAIX61 for a redundant arrangement.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Model | CC-PAIH51 |
| Product Type | High-Level Analog Input with HART |
| System | Experion Series C I/O |
| Number of Channels | 16 |
| Input Type | Current input |
| Input Range | 4–20 mA |
| Transmitter Support | 2-wire or self-powered transmitters |
| HART Function | HART-capable, 1 modem |
| A/D Resolution | 16 bits |
| Input Scan Rate | 50 ms |
| Input Conversion | 200 Ω sampling resistor |
| Maximum Normal-Mode Input | ±30 V |
| Common-Mode Rejection | 70 dB, DC–60 Hz |
| Normal-Mode Rejection | 19 dB at 60 Hz |
| Accuracy | ±0.075% FS at 23.5 ± 2 °C; ±0.15% FS at 0–60 °C |
| Non-Redundant IOTA | CC-TAIX51, 6 in |
| Redundant IOTA | CC-TAIX61, 12 in |
| Field Power | Non-incendive field power supplied by module |
| Differential Input | Not supported |
| Voltage Input | Not supported |
Honeywell’s Series-C specification explicitly identifies this hardware as a 16-channel HART analog input with 4–20 mA current inputs, 16-bit conversion, 50 ms scan time, and optional redundancy.
Honeywell CC-PAIH51
Application and Selection Notes
This module is intended for process transmitters, not thermocouple or RTD sensors. Typical signals include pressure, flow, level, and other 4–20 mA process variables where HART diagnostics or configuration access is useful.
The IOTA selection matters. Honeywell lists CC-TAIX51 as the 6-inch non-redundant IOTA and CC-TAIX61 as the 12-inch redundant IOTA for this module. The electrical function stays in the I/O module, while the IOTA provides the field-side termination and installation interface.
One practical warning: do not treat every Series C analog-input card as interchangeable. Honeywell documents different hardware generations and IOTA combinations, including older HLAI modules and later CC-PAIH51 hardware. The installed Experion revision and redundancy design should be checked before ordering.
Advantages and Limitations
Advantages
- 16 analog input channels in one module.
- Native 4–20 mA transmitter interface.
- HART support for smart field instruments.
- 16-bit A/D resolution.
- 50 ms module scan rate.
- Redundant installation option with CC-TAIX61.
Limitations
- No voltage inputs.
- No differential input mode.
- Not intended for thermocouple or RTD signals.
- Exact IOTA and Experion configuration must match the installed system.
Quality Inspection and Pre-Shipment Checks
- Incoming inspection: Verify the Honeywell label, complete model, serial number, PCB condition, connector integrity, and evidence of corrosion or previous repair.
- Live test: On a suitable Experion Series C test setup, verify startup diagnostics, module recognition, representative 4–20 mA input acquisition, HART communication, and channel status. Record results in a Test Report.
- Electrical checks: Verify connector continuity, grounding, supply paths, and relevant isolation characteristics according to the approved test procedure.
- Configuration verification: Record the associated IOTA, channel mapping, firmware or hardware revision where accessible, and redundancy configuration.
- Final QC: Photograph identification markings, place the module in ESD-safe packaging, add shock protection, and retain the inspection record.
Test photographs and available Test Reports can be supplied with the shipment when requested.
Technical Replacement Risks
Wrong signal type. The input is 4–20 mA only. A 0–10 V or differential analog application requires different hardware.
IOTA mismatch. CC-TAIX51 and CC-TAIX61 correspond to different installation arrangements. Check whether the existing system is redundant before ordering.
HART configuration. A transmitter may pass its basic current signal while HART communication still fails because of wiring, loop conditions, or configuration differences. Check the complete loop.
Hardware-generation mismatch. Honeywell introduced CC-PAIH51 as a newer Series C HART analog-input model; older HLAI modules and their IOTAs are not automatically interchangeable.
And take a photo before pulling the old module. In the field, that simple step often prevents an avoidable wiring mistake.
Purchase and Logistics Notes
For international procurement, use a description such as Honeywell CC-PAIH51 Experion Series C 16-Channel HART Analog Input Module. State the actual condition separately as New Original, New Surplus, Refurbished, or Repaired.
The purchase order should include the exact module number, associated IOTA, hardware revision where available, functional-test status, warranty, country of origin, and package data.
For export packaging, use ESD protection, rigid cushioning, and moisture protection appropriate to the shipping route. Keep the model shown on the commercial invoice, packing list, and physical label identical.
Quick Conclusion
- CC-PAIH51 is a 16-channel High-Level Analog Input module for Honeywell Experion Series C.
- It accepts 4–20 mA signals from 2-wire or self-powered transmitters and supports HART communication.
- The module provides 16-bit A/D conversion and a 50 ms scan rate.
- CC-TAIX51 is used for non-redundant installation, while CC-TAIX61 supports the redundant arrangement.
- Exact IOTA, hardware generation, redundancy, and Experion revision should be verified before replacement.
FAQ
What is Honeywell CC-PAIH51?
It is a 16-channel High-Level Analog Input module for Experion Series C I/O, designed for 4–20 mA transmitter signals with HART communication.
How many inputs does it have?
It provides 16 single-ended analog input channels.
Does it support HART?
Yes. Honeywell specifies HART capability with one modem for communication with compatible smart transmitters.
Can it accept 0–10 V signals?
No. The published specification states 4–20 mA only and does not support voltage or differential inputs.
Which IOTA is used with it?
The documented choices are CC-TAIX51 for non-redundant installation and CC-TAIX61 for redundant installation.
What should be checked before buying?
Confirm the exact module, IOTA type, redundancy arrangement, hardware revision, Experion software compatibility, and whether the field devices require HART communication.
