Honeywell TK-PRR021 51309288-475 redundancy module
Item NO.: TK-PRR021 51309288-475
Warranty: 1 year
Condition : brand new in factory sealed box
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Detail
- Product NameHoneywell TK-PRR021 51309288-475 redundancy module
- Item NO.TK-PRR021 51309288-475
- Weight2.0000 kg = 4.4092 lb = 70.5479 oz
- CategoryPLC
- BrandHoneywell
- Creation Time2025-03-02
- INPUT MODULE
TK-PRR021
Honeywell C200 redundant module
Technical Summary
- Manufacturer: Honeywell
- Model: TK-PRR021 redundancy module used in C200 family environments
- Function: redundancy, heartbeat, and failover-related control support
- System role: maintains continuity in critical control nodes
- Designed for standby/active coordination and alarm-aware communication
- Commonly paired with TK-PRS021 in official platform context
Specifications
| Family | Honeywell TK (C200 architecture) |
|---|---|
| Primary purpose | Redundant link and reliability support for high availability systems |
| Deployment | Slot-based backplane module with paired redundancy coordination |
| System behavior | Failover and health-check behavior under switchover conditions |
| Life-cycle disclosure | Public documents in this pass do not show a clear formal discontinuation date |
Features
- Redundancy health monitoring and failover assistance
- Works in high-availability control system designs
- Stable operation for mission critical process plants
- Structured replacement behavior for maintenance environments
- Consistent with Honeywell module-level diagnostics
Compatibility
- Use in approved Honeywell C200 frameworks and with matching system image
- Need same slot and software policy for full compatibility
- Firmware mismatch can reduce redundancy confidence and should be avoided
- Validate heartbeat timeout and failover thresholds after physical replacement
Replacement
- Prefer same-generation PRR-type module replacement.
- Full replacement requires equivalent redundancy timing and communication behavior.
- Cross-generation replacement may require rework of failover logic and alarm setpoints.
- Perform functional failover test before returning systems to production.
FAQ
Is TK-PRR021 a complete drop-in replacement candidate?
Usually yes only inside approved C200 PRR generation contexts.
Does this module alone guarantee redundancy?
No. Controller and system configuration must also support redundancy policy.
Has this model been discontinued?
No confirmed public EOL date from official references has been found.
Can replacement be done while process runs?
Only with predefined redundancy switching plan and safety-approved sequence.
What else should be replaced together?
Usually adjacent PRR/processor modules and power stability modules are reviewed together.
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