{"product_id":"abb-1mrk002246-bc-main-cpu-module-relion-670-series","title":"ABB 1MRK002246-BC Main CPU Module | Relion 670 Series","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB 1MRK002246-BC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the central processing unit for ABB Relion 670 series protection and control relays, including RED670, REL670, and REC670. As the primary microprocessor module, it executes protection algorithms, manages logic operations, and coordinates communication across all connected peripheral boards. Built for high-voltage substation environments, this module processes real-time signals from voltage and current transformers to make rapid protection decisions.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Performance Numerical Processing\u003c\/strong\u003e\u003cbr\u003eOptimized for fast floating-point calculations, enabling advanced operations such as:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eHarmonic and fundamental analysis via Fast Fourier Transforms (FFT)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExecution of complex interlocking and protection logic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReal-Time Operating System (RTOS)\u003c\/strong\u003e\u003cbr\u003eDesigned for deterministic timing, ensuring critical protection functions execute within precise windows. Typical trip response times range from 10 to 30 milliseconds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Communication Management\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSupports IEC 61850 Station Bus for GOOSE and MMS communication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHandles sampled values from merging units (IEC 61850-9-2LE)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides maintenance access via Ethernet for PCM600 configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Memory and Event Handling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eNon-volatile memory for disturbance waveform recording\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChronological event and alarm logging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfiguration retention after complete power loss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSelf-Diagnostics and Watchdog Protection\u003c\/strong\u003e\u003cbr\u003eIncludes hardware watchdog timers that automatically reset the CPU or signal an “Internal Fail” alarm if software hangs or memory corruption occurs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Series\u003c\/td\u003e\n\u003ctd\u003eRelion 670 (RED670, REL670, REC670)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eMain CPU \/ Processing Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicroprocessor\u003c\/td\u003e\n\u003ctd\u003eHigh-performance 32-bit, 600 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCache Memory\u003c\/td\u003e\n\u003ctd\u003e1 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e0–95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Synchronization\u003c\/td\u003e\n\u003ctd\u003eIRIG-B, SNTP, IEEE 1588 PTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHigh-voltage relay protection and control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e~0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eEssential for line differential (RED670) and distance protection (REL670) schemes, the CPU module ensures reliable execution of protection, control, and communication functions in critical substation environments.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMaintenance Notes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eReplacing the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1MRK002246-BC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erequires configuration restoration using ABB PCM600 software. Firmware and relay settings must match the specific feeder or transformer, as the module is not plug-and-play.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this CPU module be used across different Relion 670 variants?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is compatible with RED670, REL670, and REC670 series, but firmware must be aligned with the specific relay configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What happens if the CPU experiences a software failure?\u003c\/strong\u003e\u003cbr\u003eA: The module contains a watchdog timer that triggers a reset or an “Internal Fail” alarm to prevent undefined states.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this module store event and waveform data during a power outage?\u003c\/strong\u003e\u003cbr\u003eA: Yes, non-volatile memory ensures all configuration, event, and disturbance data are retained after complete power loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComparison with Other CPU Modules\u003c\/strong\u003e\u003cbr\u003eCompared to earlier Relion 670 CPU boards, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1MRK002246-BC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers higher processing speed, larger memory, and enhanced time synchronization options for advanced protection schemes.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44144090185827,"sku":"1MRK002246-BC","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/ABB1MRK002246-BC-3.jpg?v=1777277370","url":"https:\/\/precisemodule.com\/products\/abb-1mrk002246-bc-main-cpu-module-relion-670-series","provider":"Precise Module Ltd.","version":"1.0","type":"link"}