{"product_id":"pm851a-3bse066484r1-abb-ac-800m-processor-unit","title":"PM851A 3BSE066484R1 ABB AC 800M Processor Unit","description":"\u003ch2\u003eABB PM851A Processor Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB PM851A 3BSE066484R1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePM851A\u003c\/strong\u003e Processor Unit, operates as a dedicated hardware component for control logic execution, communication management, and system diagnostics within the ABB AC 800M controller platform.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable style=\"width: 99.9406%; height: 548.864px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003cth style=\"width: 36.6799%; height: 19.6023px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"width: 59.052%; height: 19.6023px;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003ePM851A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8068px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 58.8068px;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 58.8068px;\"\u003eLow power consumption profile for AC 800M entry-level processor units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003eProcessor Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eProduct ID \/ Part Number\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003e3BSE066484R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eController Family\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003eABB AC 800M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eProcessor Clock Frequency\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003e24 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eMemory (RAM)\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003e8 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eCPU Redundancy\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003eNot supported; single CPU configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eEthernet Ports\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003e2 integrated Ethernet communication ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eSerial Communication\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003e1 x RS-232C COM port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eMounting Method\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003eDIN rail mounting through compatible BasePlate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 19.6023px;\"\u003eProtection Class\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 19.6023px;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 39.2045px;\"\u003eEngineering Tool Compatibility\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 39.2045px;\"\u003eABB Control Builder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8068px;\"\u003e\n\u003ctd style=\"width: 36.6799%; height: 58.8068px;\"\u003eProgramming Standard\u003c\/td\u003e\n\u003ctd style=\"width: 59.052%; height: 58.8068px;\"\u003eIEC 61131-3 compliant languages including FBD, ST, IL, LD, and SFC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Communication and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe ABB PM851A integrates into the AC 800M automation architecture through controller backplane communication and Ethernet-based system interfaces. It manages application execution, controller diagnostics, and data exchange between engineering tools, operator interfaces, and connected automation devices.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the processor supports ABB Control Builder programming environments and IEC 61131-3 application development. The 8 MB RAM capacity provides the required execution memory for compact control applications within single CPU configurations.\u003c\/p\u003e\n\u003cp\u003eThe AC 800M platform architecture supports firmware-controlled functionality, allowing application compatibility between processor hardware revisions and approved system software packages. Configuration management requires matching controller firmware, engineering tools, and installed communication modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PM851A support CPU redundancy configurations?\u003cbr\u003eA: No. The PM851A operates as a single processor unit and does not support redundant CPU configurations.\u003c\/p\u003e\n\u003cp\u003eQ: What communication interfaces are integrated into the PM851A?\u003cbr\u003eA: The processor includes two Ethernet ports for system communication and diagnostics, plus one RS-232C serial communication port.\u003c\/p\u003e\n\u003cp\u003eQ: Can the PM851A be installed directly on a DIN rail?\u003cbr\u003eA: The PM851A requires installation through a compatible AC 800M BasePlate assembly for DIN rail mounting within the controller cabinet.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the PM851A on the specified AC 800M BasePlate before connecting field wiring or communication interfaces.\u003c\/li\u003e\n\u003cli\u003eVerify that the cabinet environment meets the processor unit operating requirements before energizing the controller system.\u003c\/li\u003e\n\u003cli\u003eRoute Ethernet and serial communication cables separately from high-voltage power conductors to reduce electrical interference.\u003c\/li\u003e\n\u003cli\u003eConnect cable shields according to site grounding practices and maintain proper cabinet grounding continuity.\u003c\/li\u003e\n\u003cli\u003eConfirm firmware compatibility between the PM851A processor, Control Builder engineering software, and connected AC 800M modules before commissioning.\u003c\/li\u003e\n\u003cli\u003eCheck connector seating and mechanical fixation after installation to prevent intermittent communication faults.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44661742829656,"sku":"PM851A 3BSE066484R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/PM851A-3BSE066484R1-3_1200x1200_63b255fa-7256-48ec-b33e-7620e046c377.jpg?v=1787735595","url":"https:\/\/www.industriaxplc.com\/ar\/products\/pm851a-3bse066484r1-abb-ac-800m-processor-unit","provider":"IndustriaX Limited","version":"1.0","type":"link"}