Analog Output DCS Solution – Honeywell 8C-TAOX51 / 8U-TAOX51 / 8C-TAOX61 / 8U-TAOX61 | Experion PKS Series
The Honeywell 8C-TAOX51, 8U-TAOX51, 8C-TAOX61, and 8U-TAOX61 are high-density Analog Output modules designed for the Experion PKS (Process Knowledge System) distributed control platform. These modules deliver precision 4–20 mA current loop outputs with optional HART communication, making them the preferred choice for continuous process control in refining, chemical, and power generation facilities.
Where This Product Is Used
These analog output modules are deployed across a wide range of industrial process control environments:
- Oil & Gas Refineries – Valve positioner control, flow control loops, and pressure regulation in upstream/downstream processes
- Chemical & Petrochemical Plants – Reactor temperature and feed rate control via 4–20 mA signals to field instruments
- Power Generation – Turbine governor control, boiler feedwater regulation, and load dispatch systems
- Pulp & Paper Mills – Consistency control, headbox pressure, and steam pressure management
- Pharmaceutical Manufacturing – Bioreactor parameter control requiring high-accuracy analog outputs with HART diagnostics
- Water & Wastewater Treatment – Pump speed control via VFD analog reference signals and chemical dosing systems
- LNG & Gas Processing – Cryogenic valve control and compressor anti-surge systems
Technical Specifications
- Part Numbers: 8C-TAOX51, 8U-TAOX51, 8C-TAOX61, 8U-TAOX61
- Platform: Honeywell Experion PKS / Series C & Universal I/O
- Module Type: Analog Output (AO)
- Output Signal: 4–20 mA current loop
- HART Support: Yes (8C-TAOX61 / 8U-TAOX61 variants)
- Channel Density: 8 channels per module
- Output Resolution: 16-bit DAC
- Isolation: Channel-to-channel and channel-to-bus isolation
- Operating Temperature: 0°C to 60°C
- Mounting: CHARM I/O Carrier / Series C I/O Carrier
- Communication Bus: Experion PKS C300 / EPKS backplane
- Certifications: CE, FM, ATEX (zone 2 capable with appropriate barriers)
- Weight: Approx. 1,060 g
Why Engineers Specify This Model
- Proven Experion PKS Integration – Native plug-and-play compatibility with Honeywell C300 controllers; no additional configuration adapters required
- HART Pass-Through (x61 variants) – Enables remote valve diagnostics and instrument calibration without loop interruption, reducing planned downtime
- High-Accuracy 16-bit Output – Delivers ±0.1% full-scale accuracy, critical for tight PID loop performance in distillation and reactor control
- Hot-Swap Capable – Modules can be replaced under power in redundant configurations, supporting zero-downtime maintenance strategies
- Universal I/O Flexibility (8U variants) – Field-configurable I/O type reduces spare parts inventory and simplifies plant standardization
- Redundancy Support – Compatible with Experion PKS redundant I/O architectures for SIL-rated applications
Complete System Bill of Materials
For a fully operational Experion PKS analog output loop, the following components are typically required:
- Honeywell 8C-TAOX51 / 8U-TAOX51 / 8C-TAOX61 / 8U-TAOX61 – Analog Output Module (this item)
- Honeywell C300 Process Controller – Loop execution and control strategy host
- Honeywell CHARM I/O Carrier or Series C I/O Carrier – Module mounting base
- Honeywell Power Supply Module (e.g., 51309512-175) – Carrier power
- HART-compatible field device (control valve, VFD, or positioner)
- Shielded twisted-pair cable (per ISA-5.1 wiring standard)
- Intrinsic safety barriers or galvanic isolators (for hazardous area installations)
Compliance & Industry Standards
- IEC 61511 – Functional Safety for Process Industry (SIL-capable configurations)
- ISA-5.1 – Instrumentation Symbols and Identification
- HART Communication Protocol – HART 5/6/7 compatible (x61 variants)
- CE Marking – EU electromagnetic compatibility and safety directives
- FM / CSA – North American hazardous location approvals
- ATEX / IECEx – Zone 2 hazardous area classification (with appropriate barriers)
- RoHS Compliant – Restriction of Hazardous Substances
Quality Assurance & Sourcing
All Honeywell Experion PKS modules supplied by Konmask.com are sourced through verified industrial automation supply channels. Each unit undergoes the following before dispatch:
- Visual and mechanical inspection against Honeywell OEM specifications
- Firmware version verification and documentation
- Anti-static packaging with humidity indicator cards
- Traceability documentation available upon request (batch records, test reports)
- Export compliance screening (EAR / ECCN classification)
We supply both new surplus and factory-new stock. Condition is clearly stated on each order confirmation.
How to Source This Part
- In-Stock Orders: Add to cart and complete checkout — same-day dispatch available for orders placed before 15:00 CST
- Bulk / Project Inquiries: Contact [email protected] for volume pricing, lead time confirmation, and project BOM support
- Urgent Requirements: Call or WhatsApp +0086 19859288691 for expedited sourcing
- Cross-Reference: This listing covers all four part numbers — 8C-TAOX51, 8U-TAOX51, 8C-TAOX61, 8U-TAOX61. Confirm your exact part number when ordering
Application-Specific FAQ
Q: What is the difference between 8C-TAOX51 and 8C-TAOX61?
A: The 8C-TAOX61 adds HART communication capability, enabling two-way digital communication with HART-enabled field devices for remote diagnostics and calibration. The 8C-TAOX51 provides standard 4–20 mA output only.
Q: What is the difference between 8C (Series C) and 8U (Universal) variants?
A: The 8C variants are fixed-type Series C I/O modules. The 8U variants are Universal I/O modules that can be field-configured for different signal types, offering greater flexibility for plant standardization and spare parts reduction.
Q: Can these modules be used in SIL 2 safety loops?
A: These modules can be incorporated into SIL-rated architectures when used with appropriate Experion PKS safety system configurations. Consult Honeywell’s functional safety documentation and your SIL assessment engineer for specific loop validation.
Q: Are these modules compatible with Honeywell TotalPlant Solution (TPS) or older platforms?
A: No. These modules are designed exclusively for the Experion PKS platform (C300 controller environment). For TPS or PlantScape systems, different I/O module families apply.
Q: What is the lead time for out-of-stock units?
A: Typical sourcing lead time is 3–10 business days for surplus stock and 8–16 weeks for factory-new orders. Contact us for current availability.
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