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
Spatial Computing in Industrial Automation: Elevating PLC and DCS Operations with AR and VR
Industry 4.0 integrates digital intelligence into field operations, transforming factory automation landscapes worldwide. Spatial technologies—specifically Augmented Reality (AR) and Virtual Reality (VR)—redefine how engineers interact with industrial control systems. By bridging computer-generated CAD models with real-time operational technology (OT) data, immersive displays enable intuitive monitoring, rapid diagnostics, and safer maintenance across complex processing facilities.
Master Acceptance Testing: Understanding FAT and SAT in Industrial Control Systems
Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) serve as critical quality assurance gateways in complex industrial control systems. Both procedures verify that programmable logic controllers (PLCs), distributed control systems (DCS), and associated field devices meet strict functional specifications. However, executing these tests effectively requires clear delineation between off-site staging and final field commissioning.
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.