Honeywell TK-PRR021 51309288-475 Redundancy Module – Experion PKS / TotalPlant Solution (TPS) DCS
Imagine a critical refinery unit running at full capacity — crude distillation, heat exchangers, compressors all synchronized under a single DCS controller. Then the primary controller fails. Without a redundancy module, the entire process halts: emergency shutdowns trigger, production losses mount by the minute, and the cost of unplanned downtime can reach tens of thousands of dollars per hour. The Honeywell TK-PRR021 (Part No. 51309288-475) Redundancy Module exists precisely to prevent this scenario — enabling seamless, bumpless failover between primary and backup controllers with zero process interruption.
Within Honeywell’s Experion PKS and TotalPlant Solution (TPS) DCS ecosystem, the TK-PRR021 occupies a mission-critical position as the dedicated redundancy interface for C200/C200E process controllers. It is deployed across some of the world’s most demanding continuous-process industries — oil & gas, petrochemicals, power generation, and specialty chemicals — where five-nines (99.999%) availability is not a target but a contractual obligation. As a genuine Honeywell OEM component, it integrates natively with the Experion PKS architecture without requiring additional configuration or third-party middleware.
Technical Specifications
- Part Number: TK-PRR021
- Reference Number: 51309288-475
- Manufacturer: Honeywell Process Solutions
- Series / Platform: Experion PKS / TotalPlant Solution (TPS)
- Module Type: Controller Redundancy Module
- Compatible Controller: C200 / C200E Process Controller
- Redundancy Architecture: Hot-standby (active/standby pair)
- Failover Type: Bumpless, automatic switchover
- Communication: Dedicated redundancy link between primary and backup controllers
- Mounting: DIN-rail / chassis-mount per Experion PKS cabinet standard
- Weight: Approx. 440 g
- Compliance: Designed to Honeywell SIL-capable system standards
Note: Detailed electrical ratings and environmental specifications should be confirmed against the Honeywell TK-PRR021 product datasheet or by contacting our technical team.
Key Features & Benefits
- Bumpless Failover: Automatic switchover from primary to standby controller with no process upset — critical for continuous operations that cannot tolerate even momentary control interruption.
- Hot-Standby Architecture: The standby controller remains fully synchronized in real time, ready to assume control instantaneously upon primary fault detection.
- Native Experion PKS Integration: Plug-and-play compatibility within the Honeywell Experion PKS and TPS DCS framework — no custom engineering or firmware patching required.
- High System Availability: Supports five-nines (99.999%) uptime targets demanded by oil & gas, power, and chemical process industries.
- Simplified Maintenance: Allows replacement of a faulty primary controller while the standby continues to run the process — enabling online maintenance without production shutdown.
- Genuine OEM Component: Manufactured to Honeywell’s original design specifications, ensuring full compatibility and preserving system warranty and support agreements.
Industry & Equipment Applications
- Oil & Gas: Upstream wellhead control, midstream pipeline SCADA, downstream refinery distillation and hydrocracking units
- Petrochemicals & Chemicals: Continuous reactor control, ethylene crackers, specialty chemical batch-to-continuous hybrid processes
- Power Generation: Turbine control systems, boiler management, combined-cycle plant DCS integration
- Pulp & Paper: Digester control, recovery boiler management
- Pharmaceuticals: FDA-regulated continuous manufacturing lines requiring validated, high-availability control
- Water & Wastewater: Large municipal treatment plants with Honeywell Experion PKS-based SCADA/DCS
System Integration & Compatible Parts
The TK-PRR021 is designed to work within a paired C200/C200E controller redundancy configuration. Typical associated components in a complete Experion PKS redundant controller node include:
- Honeywell C200 / C200E Process Controller modules
- Honeywell TK-PRSA01 / TK-PRSB01 Power Supply modules
- Honeywell CC-PCNT01 / CC-PCNT02 Control Firewall modules
- Honeywell FTE (Fault Tolerant Ethernet) network infrastructure
- Experion PKS Series A/B I/O subsystems (CIOM-A, CIOM-B)
Contact our engineering team to verify compatibility with your specific Experion PKS revision and cabinet configuration before ordering.
Our Quality Assurance Process
At Konmask.com, every module undergoes a rigorous multi-stage verification process before shipment:
- Visual Inspection: Physical examination for damage, corrosion, counterfeit indicators, and label authenticity
- Traceability Check: Part number and reference number cross-verified against Honeywell’s official documentation
- Functional Pre-test: Where applicable, modules are bench-tested to confirm power-on and communication readiness
- Anti-Static Packaging: All modules shipped in ESD-safe bags with foam cushioning and moisture barrier packaging
- Documentation: Certificate of conformity and test report available upon request
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email support@konmask.com
- Provide your required quantity, delivery timeline, and destination country
- Our technical team will confirm availability, lead time, and issue a formal quotation within 24 hours
- Upon PO confirmation, we arrange secure packaging and international freight (DHL / FedEx / sea freight)
- Tracking number and shipping documents (commercial invoice, packing list, COO) provided upon dispatch
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation: Focused exclusively on DCS, PLC, and process control components from leading brands
- ✅ Global Supply Network: Sourcing from authorized distributors and verified surplus channels worldwide
- ✅ Technical Expertise: Our team includes engineers with hands-on Honeywell Experion PKS project experience
- ✅ Fast Response: RFQ responses within 24 hours; emergency orders prioritized
- ✅ Secure International Shipping: Full export documentation, customs support, and insured freight
- ✅ Warranty: 12-month warranty on all supplied modules with post-sale technical support
Frequently Asked Questions
Q: Is the TK-PRR021 compatible with both C200 and C200E controllers?
A: Yes. The TK-PRR021 Redundancy Module is designed to support both the C200 and C200E process controllers within the Honeywell Experion PKS platform. Please confirm your specific firmware revision with our team to ensure full compatibility.
Q: Can I replace the TK-PRR021 while the process is running?
A: In a properly configured hot-standby redundant pair, the standby controller can maintain process control while the primary (and its associated redundancy module) is serviced. Always follow Honeywell’s documented hot-swap procedures and consult your system integrator before performing live maintenance.
Q: Do you supply new or refurbished units?
A: We supply both new (surplus/unused) and professionally refurbished units depending on availability. The condition is clearly stated in your quotation. All units pass our QA process regardless of condition grade.
Q: What is the lead time for TK-PRR021?
A: Lead time depends on current stock levels. In-stock units typically ship within 2–5 business days. For out-of-stock items, sourcing lead time is typically 2–4 weeks. Contact us for real-time availability.
Q: Can you provide a datasheet or wiring diagram?
A: Yes. We can provide the Honeywell TK-PRR021 product datasheet and relevant Experion PKS installation documentation upon request. Contact support@konmask.com.
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