{"product_id":"abb-pm851-ac-800m-processor-unit","title":"ABB PM851 AC 800M Processor Unit","description":"\u003ch2\u003eABB PM851 AC 800M Processor Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB PM851\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePM851\u003c\/strong\u003e Processor Unit, operates as a dedicated CPU hardware component for execution control, memory management, and communication tasks within the ABB AC 800M control system platform.\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\u003eParameter\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePM851\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProcessor Unit \/ CPU Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eABB AC 800M Controller Family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Frequency\u003c\/td\u003e\n\u003ctd\u003e24 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e12 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eNon-redundant configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Integrity Support\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Benchmark\u003c\/td\u003e\n\u003ctd\u003e1,000 Boolean operations in 0.46 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eWidth: 119 mm; Height: 186 mm; Depth: 135 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 1100 g including base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe ABB PM851 uses the AC 800M controller architecture to execute application logic and exchange process data through the controller backplane communication structure. Therefore, the processor manages task scheduling, I\/O data handling, and system communication services within the automation hardware tree.\u003c\/p\u003e\n\u003cp\u003eIn addition, the PM851 supports ABB controller firmware environments defined for AC 800M platforms. Firmware compatibility depends on the installed controller version and the associated ABB engineering system configuration.\u003c\/p\u003e\n\u003cp\u003eThe processor architecture supports industrial control applications requiring coordinated I\/O density scaling, distributed signal processing, and deterministic PLC execution cycles.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the ABB PM851 support controller redundancy configurations?\u003cbr\u003eA: No. The PM851 is specified as a non-redundant processor unit and does not provide redundant CPU operation.\u003c\/p\u003e\n\u003cp\u003eQ: What type of control tasks does the PM851 execute?\u003cbr\u003eA: The PM851 executes PLC application programs, manages controller memory operations, and processes communication tasks within the AC 800M system.\u003c\/p\u003e\n\u003cp\u003eQ: Can the PM851 operate with standard AC 800M I\/O modules?\u003cbr\u003eA: Yes. The PM851 is designed for integration with compatible AC 800M hardware modules through the controller system architecture.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the PM851 on the designated AC 800M controller base according to ABB hardware assembly procedures.\u003c\/li\u003e\n\u003cli\u003eVerify that the controller backplane connections are correctly seated before system power-up.\u003c\/li\u003e\n\u003cli\u003eUse appropriate grounding methods for the controller cabinet to minimize electrical interference.\u003c\/li\u003e\n\u003cli\u003eSeparate communication wiring from high-voltage power cables to reduce electromagnetic coupling.\u003c\/li\u003e\n\u003cli\u003eConfirm firmware compatibility between the PM851 processor unit and the installed AC 800M controller software environment before commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44661757673560,"sku":"PM851","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/PM851AK01-3BSE066485R1-3_1200x1200_cd7b8712-ebd6-461e-bd11-3efa434bf497.jpg?v=1787735741","url":"https:\/\/www.industriaxplc.com\/id\/products\/abb-pm851-ac-800m-processor-unit","provider":"IndustriaX Limited","version":"1.0","type":"link"}