Product Details
The Honeywell 51202902-400, also cataloged as the 51202902 Controller Memory Backup Device, operates as a dedicated hardware component for memory preservation within Honeywell C300 platforms. Configured for safeguarding internal configuration and program data in Honeywell C300 controllers, the hardware establishes a localized secondary power routing path via a plug-and-play USB connection to counteract active power outages or system malfunctions.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51202902-400 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 1.5 kg |
| Dimensions | 2.95 x 1.77 x 0.47 inches |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | Host node dependency |
| Interface Connector | USB |
| Compatibility | Honeywell C300 controllers |
Honeywell DCS Channel-to-Channel Isolation Parameters
The hardware configuration utilizes integrated physical insulation layers to coordinate with the channel-to-channel isolation requirements of the connected distributed control system matrix. This mechanical and electrical separation prevents transient ground loop voltages or common-mode electrical noise originating on adjacent controller backplanes from transferring through the USB interface, eliminating data corruption risks during memory read/write backup execution.
Frequently Asked Questions
Q: Can this memory backup device be hot-swapped while the target Honeywell C300 controller is online?
A: Yes, the module uses a passive plug-and-play USB interface design that permits physical extraction and insertion under live rack power without introducing faults or halting logic solver execution.
Q: Does the 51202902-400 unit require independent firmware flash programming prior to deployment?
A: No, the assembly operates as a direct hardware energy delivery and routing unit, functioning without an internal micro-kernel or logic application that requires standalone firmware updates.
Field Installation Guidelines
- Mount the compact enclosure shell onto the specified interior terminal layout space, keeping the 2.95 x 1.77 x 0.47 inches chassis clear of primary heat-generating assemblies.
- Route the dedicated USB communication cable inside low-voltage wiring trays, ensuring layout isolation from high-voltage AC cables or switching relays.
- Fully seat the physical USB interface plug into the designated connection port on the C300 unit, ensuring the retention tabs lock firmly to resist ambient plant vibration.
- Verify that the terminal cabinet ground rail is directly linked to the low-impedance master instrumentation earth ground before running final operational testing loops.
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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