Product Details
Configured for central logic execution and determinism in Experion Process Knowledge System (PKS) architectures, the Honeywell TK-PRS021 (51404305-375 Control Processor Module) provides direct physical/electrical execution. It handles field I/O scanning, continuous control algorithms, and system telemetry processing across high-speed controller chassis backplanes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TK-PRS021 (51404305-375) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.50 kg (1.10 lbs) |
| Dimensions | Standard C300 / Process Manager chassis slot module |
| Operating Temp | 0 deg C to +60 deg C |
| Power Consumption | +5 VDC +/- 5% @ 1.5 A, +3.3 VDC +/- 5% @ 1.0 A |
| Supply Voltage | 24 VDC chassis feed |
| Battery Backup Time | Integrated lithium battery: 144 hours (6 days); Battery Extension Module (BEM): 120 hours (5 days) |
| Processing Function | Process controller / execution module |
Channel-to-Channel Isolation & Cold Junction Compensation (CJC)
The control processor board processes high-density I/O scans from distributed node channels across isolated field buses. Galvanic channel-to-channel isolation on downstream analog input modules connected to the controller blocks severe common-mode voltage spikes and eliminates earth potential loops. For temperature monitoring points, onboard cold junction compensation (CJC) software routines process field thermocouple signals directly, ensuring precise measurement conversion prior to executing PID control loop algorithms.
Frequently Asked Questions
Q: How is memory retained on the TK-PRS021 control processor during a complete chassis power interruption?
A: An integrated, replaceable non-rechargeable lithium battery maintains volatile RAM contents for up to 144 hours, with an optional rechargeable Battery Extension Module (BEM) extending backup power for an additional 120 hours.
Q: Can the TK-PRS021 module be installed or removed under power in a redundant chassis setup?
A: Yes. In redundant configurations, the backup processor module supports live insertion and removal, permitting hot-swap replacement without interrupting active process execution on the primary controller.
Field Installation Guidelines
- ESD Prevention: Equip a grounded wrist strap before removing the processor module from its anti-static protective bag.
- Backplane Insertion: Align the card top and bottom edge guides with the controller chassis slot and press firmly until the multi-pin connector latches completely.
- Battery Activation: Verify that the onboard lithium backup battery jumper is set to the active position prior to applying chassis 24 VDC power.
- Thermal Spacing: Maintain clear vertical cabinet ventilation channels to prevent localized heat accumulation and ensure ambient rack temperatures stay below +60 deg C.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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