Manufacturer: Honeywell
Product No.: TK-PRS021
Country of origin:United States
Product Type: Control Processor Module
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
The Honeywell TK-PRS021, also identified by part number 51404305-375, is a high-reliability hardware component designed for execution and process control within industrial distributed control systems (DCS). This Control Processor Module handles regulatory control loops, system diagnostic tasks, and real-time data management. Engineered with dual-layered memory protection infrastructure, it utilizes an internal lithium battery alongside support for an external Battery Extension Module (BEM) to prevent volatile memory loss during primary power interruptions. The module interfaces seamlessly with the system backplane to ensure deterministic communication and high-speed processing for heavy industrial applications.
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Model | TK-PRS021 |
| Part Number / Ordering Code | 51404305-375 |
| Product Type | Control Processor Module |
| Primary Supply Voltage | 24 V DC |
| Internal Power Requirements | +5 V DC +/- 5% @ 1.5 A, +3.3 V DC +/- 5% @ 1.0 A |
| Integrated Battery Backup Time | Lithium Battery (standard, built-in): 144 hours (6 days), non-rechargeable, replaceable |
| Auxiliary Battery Backup Time | Battery Extension Module (BEM): 120 hours (5 days), rechargeable |
| Weight | 0.50 Kg |
| Shipping Weight | 1.5 Kg |
| Country of Origin | United States / Global Operations |
| Physical Dimensions | Standard module slot width for compatible Honeywell chassis |
Ensure the chassis rack housing the module is bonded to the main plant instrument ground grid via a low-impedance copper conductor. Clean all rail surfaces of paint or oxidation prior to securement to maintain proper structural grounding contact.
This module contains components sensitive to electrostatic discharge. Utilize a grounded wrist strap connected to an approved ESD bonding point before removing the unit from its anti-static packaging or executing configuration adjustments.
Verify correct polarity when initializing or replacing the internal lithium battery assembly. Inspect battery expiration dates prior to insertion. When utilizing an external Battery Extension Module (BEM), ensure the interface cable is fully seated and locked into the dedicated port to allow proper trickle charging cycles.
Maintain clear ventilation pathways above and below the module housing rack. Ensure ambient enclosure temperatures do not exceed specified operational limits by verifying that forced-air cooling systems or passive heat dissipation paths are unobstructed.
What is the primary function of this module in a control system?
It functions as a central execution unit that processes control algorithms, handles system logic, and coordinates communication between I/O modules and the supervisory network.
What are the internal voltage rails required for operation?
The module converts the primary input to supply internal logic rails of +5 V DC at 1.5 A and +3.3 V DC at 1.0 A, both with a tolerance of +/- 5%.
How long will the standard built-in battery retain data during a power failure?
The standard non-rechargeable lithium battery provides up to 144 hours or 6 days of data retention for the volatile memory circuits.
Can the memory backup duration be extended beyond the standard six days?
Yes, connecting an auxiliary Battery Extension Module provides an additional 120 hours or 5 days of rechargeable backup retention.
Is the internal primary lithium battery rechargeable?
No, the standard built-in lithium battery is non-rechargeable and must be replaced periodically according to maintenance schedules.
What is the required primary input voltage for the module rack interface?
The system requires a nominal primary supply voltage of 24 V DC to power the module assembly.
Does this hardware require specific software tools for configuration?
Configuration and logic deployment are managed through the standard Honeywell system engineering environment compatible with this processor series.
What do the integrated status indicators on the faceplate signify?
The LEDs provide real-time diagnostic feedback regarding processor health, memory status, battery condition, and communication activity.
Can this unit be inserted into the rack while the backplane is energized?
Power down the specific rack segment or follow official hot-swapping procedures detailed in the system engineering manual to prevent transient electrical damage.
What is the net physical weight of the unboxed hardware?
The module has a net physical weight of exactly 0.50 Kg.
Global Express Shipping
Returns & Warranty
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Black
|
| Country of origin |
United States
|
| Power source |
DC Power
|
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