Honeywell TK-PRR021 (51309288-375) – Redundancy Module | Experion PKS / TPS DCS Platform
Engineering Background: The Honeywell TK-PRR021 is a dedicated redundancy module engineered for mission-critical distributed control system (DCS) architectures. Designed to operate within the Honeywell Experion PKS and TotalPlant Solution (TPS) platforms, this module provides seamless controller failover and bumpless transfer, ensuring continuous process operation even in the event of a primary controller fault.
Product Positioning: Targeted at process industries requiring the highest levels of availability — including oil & gas, refining, petrochemical, power generation, and specialty chemicals — the TK-PRR021 is the backbone of a fault-tolerant control architecture. Procurement engineers specify this module when SIL-rated uptime and zero-interruption production are non-negotiable requirements.
Complete Technical Specifications
| Part Number | TK-PRR021 |
| Manufacturer Part Number | 51309288-375 |
| Manufacturer | Honeywell Process Solutions |
| Product Series | Experion PKS / TotalPlant Solution (TPS) |
| Module Type | Redundancy Module |
| Function | Controller redundancy management, bumpless failover, synchronization |
| Compatible Controllers | C300 Process Controller, ACE (Application Control Environment) |
| Communication Interface | FTE (Fault Tolerant Ethernet) backbone |
| Redundancy Type | Hot standby (1:1 redundancy) |
| Failover Time | < 1 scan cycle (bumpless transfer) |
| Power Supply | Supplied via controller chassis backplane |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5% to 95% RH, non-condensing |
| Mounting | DIN rail / chassis slot (Experion PKS standard) |
| Certifications | CE, UL, cUL |
| HS Code | 8537.10 |
| Country of Origin | United States |
| Weight | Approx. 1 kg |
Proven Application Environments
- Oil & Gas: Upstream wellhead control, midstream pipeline SCADA, downstream refinery DCS
- Petrochemical & Chemical: Continuous reactor control, batch process management
- Power Generation: Turbine control systems, boiler management, grid-tie automation
- Pulp & Paper / Mining: High-availability process lines requiring zero unplanned downtime
- Pharmaceutical: FDA-regulated batch control with full audit trail requirements
Engineering Advantages
- Bumpless Failover: Sub-scan-cycle switchover eliminates process upsets during controller faults
- Hot Standby Architecture: Both primary and secondary controllers remain fully synchronized at all times
- FTE Integration: Leverages Honeywell’s Fault Tolerant Ethernet for dual-path, self-healing network redundancy
- Plug-and-Play Replacement: Drop-in compatible with existing Experion PKS chassis — no re-engineering required
- Diagnostic Transparency: Full health status visible in Experion Station HMI and Control Builder
- Long Service Life: Designed for 10+ year operational lifecycle in industrial environments
System Architecture & Signal Flow
The TK-PRR021 installs directly into the Experion PKS controller chassis alongside the primary C300 controller. It continuously mirrors the execution state of the primary controller over the FTE backbone. Upon detection of a primary controller fault — hardware failure, watchdog timeout, or communication loss — the TK-PRR021 initiates an automatic, bumpless transfer to the standby controller within a single scan cycle. The FTE dual-path network ensures that the redundancy link itself has no single point of failure. System health is continuously reported to the Experion Station operator interface, providing full visibility to control room engineers.
Sourcing & Quality Verification
- All units sourced from authorized distributors or directly from Honeywell-certified supply chains
- Each module undergoes incoming inspection: visual, functional, and firmware version verification
- Serialized traceability maintained — original manufacturer labels and barcodes preserved
- Shelf-life managed: units stored in ESD-safe, climate-controlled warehousing
- Certificate of conformance (CoC) and test reports available upon request
- Counterfeit-prevention: all units verified against Honeywell’s authorized part database
Procurement Process
- Submit RFQ: Contact support@konmask.com with your project quantity, delivery timeline, and destination
- Receive Quote: Formal quotation with lead time, unit price, and shipping options within 24 business hours
- Order Confirmation: Purchase order accepted via email; proforma invoice issued
- Quality Inspection: Pre-shipment inspection report and photos provided upon request
- Shipping: DHL / FedEx / UPS express worldwide; EXW, FOB, CIF Incoterms available
- After-Sales: 12-month warranty; technical support from Konmask engineering team
Technical FAQ
Q: Is the TK-PRR021 compatible with both Experion PKS R310 and R500 releases?
A: Yes. The TK-PRR021 is compatible across multiple Experion PKS software releases. Please confirm your specific release version when submitting your RFQ so we can verify firmware compatibility.
Q: Can this module be used with the C200 controller?
A: No. The TK-PRR021 is designed for the C300 controller platform. For C200 redundancy, a different module part number is required — contact us for cross-reference assistance.
Q: Do you supply new or refurbished units?
A: We supply both new (factory-sealed) and professionally refurbished units. All refurbished units are fully tested and carry a 12-month warranty. Unit condition is clearly stated on the quotation.
Q: What documentation is included with shipment?
A: Standard shipment includes packing list, certificate of conformance, and commercial invoice. Datasheet, test report, and material safety data sheet (MSDS) available upon request.
Q: Can you supply multiple units for a plant-wide DCS upgrade?
A: Yes. We maintain stock and can source volume quantities. Contact us for project pricing and phased delivery schedules.
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