{"product_id":"honeywell-51308105-400-c300-controller-memory-backup-module","title":"Honeywell 51308105-400 C300 Controller Memory Backup Module","description":"\u003cp\u003eConfigured for volatile memory preservation in C300 Distributed Control System platforms, the \u003cstrong\u003eHoneywell 51308105-400\u003c\/strong\u003e (\u003cstrong\u003e51308105-400\u003c\/strong\u003e Controller Memory Backup Module) provides direct physical\/electrical execution. Mounted directly on the controller hardware, the module sustains up to 128 MB of internal program parameters and runtime configurations across 1-2 physical S8 C300 units during electrical supply failure vectors.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51308105-400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.8 oz (approx. 80 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.95 x 1.77 x 0.47 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard C300 system environment limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eHosted by controller module interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e128 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Controllers\u003c\/td\u003e\n\u003ctd\u003e1-2 physical S8 C300 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eC300 DCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHoneywell DCS Channel-to-Channel Isolation Parameters\u003c\/h3\u003e\n\u003cp\u003eThe memory backup architecture is engineered to operate in parallel with standard channel-to-channel isolation layers built into the Honeywell C300 terminal matrix. The physical grounding and shielded contacts isolate low-voltage backup energy paths from external field wiring common-mode disturbances, preventing electrical noise from affecting the 4-20 mA HART loop protocol handling channels during active failover sequences.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can this memory backup module be hot-swapped while the primary S8 C300 controller is actively running control logic?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the mechanical and electrical interface allows for hot-swap maintenance under live system rack voltage conditions without disrupting localized controller bus performance.\u003c\/p\u003e\n\u003cp\u003eQ: How many physical C300 controller nodes can be concurrently sustained by a single 51308105-400 unit?\u003c\/p\u003e\n\u003cp\u003eA: The physical board routing layout is internally configured to support and bridge the backup voltage rails of 1-2 physical S8 C300 units simultaneously.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAlign the 2.95 x 1.77 x 0.47 inches backup board module with the dedicated mounting footprint directly located on the C300 base assembly.\u003c\/li\u003e\n\u003cli\u003ePress the connection pins firmly into the mating socket until the structural retaining components click to secure the link against industrial plant vibration.\u003c\/li\u003e\n\u003cli\u003eEnsure that the cabinet grounding braid forms a low-impedance electrical interface to the main chassis earth terminal to limit transient risks.\u003c\/li\u003e\n\u003cli\u003eExecute standard software diagnostics through the engineering interface to verify that the 128 MB volatile memory cache registers clear status indicators.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53164106416437,"sku":"51308105-400","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51199165-100_5694bf43-7bda-46c6-a0e8-e2470d93ef78.png?v=1784274523","url":"https:\/\/www.5gplc.com\/products\/honeywell-51308105-400-c300-controller-memory-backup-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}