{"product_id":"abb-pm857k01-pm857-safety-controller-cpu-module-buy-online","title":"ABB PM857K01 PM857 Safety Controller CPU Module - Buy Online","description":"\u003ch3\u003eEngineering Insight \u0026amp; System Architecture\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003ePM857K01\u003c\/span\u003e\u003c\/strong\u003e (Part Number: 3BSE088385R1) is an advanced high-integrity central processing unit engineered by \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eABB\u003c\/span\u003e\u003c\/strong\u003e for the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eAC 800M\u003c\/span\u003e\u003c\/strong\u003e automation platform. Operating at a 96 MHz clock speed with an MPC866 processor and 32 MB RAM, this controller is designed to execute safety-critical and business-critical operations concurrently within a single unified architecture.\u003c\/p\u003e\n\u003cp\u003eAccording to Global PLC Spare HUB's Insight, automation engineers specify the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003ePM857K01\u003c\/span\u003e\u003c\/strong\u003e when upgrading conventional control schemes to SIL3-certified safety loops through the integration of an SM812 safety module. Our bench evaluation highlights that its robust G3 corrosive protection andISA Secure certification ensure high reliability in aggressive chemical and offshore plant environments.\u003c\/p\u003e\n\u003ch3\u003ePerformance \u0026amp; Hardware Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Platform:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/ac-800m\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eABB\u003c\/span\u003e\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eAC 800M\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e High-Integrity Control System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number \u0026amp; Article:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003ePM857K01\u003c\/span\u003e\u003c\/strong\u003e (3BSE088385R1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessing Core:\u003c\/strong\u003e MPC866 processor running at 96 MHz; execution speed of 0.17 ms per 1000 boolean operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Architecture:\u003c\/strong\u003e 32 MB total RAM (22.184 MB available for application runtime) with 18 MB Flash PROM for firmware storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Limits:\u003c\/strong\u003e Supports up to 32 applications, 64 programs per application, 32 tasks, and a maximum total of 128 I\/O signals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Ports:\u003c\/strong\u003e Two RJ45 Ethernet ports (CN1\/CN2) supporting MMS and IAC protocols; two serial ports (COM3 RS-232C with modem control, COM4 opto-isolated service port)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Dimensions:\u003c\/strong\u003e 119 mm width, 186 mm height, 135 mm depth; total assembly weight including base plate is 1200 g (2.6 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostics, Safety Certification \u0026amp; Environmental Compliance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Integrity Rating:\u003c\/strong\u003e Certified for TÜV SIL2 and SIL3 operations when paired with the appropriate safety software configuration and SM812 module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Diagnostics:\u003c\/strong\u003e Equipped with onboard LED status indicators, an INIT push button, and a real-time clock featuring 100 ppm stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Resilience:\u003c\/strong\u003e IP20 protection class with G3 corrosive atmosphere compliance per ISA 71.04; certified for cULus Class 1 Zone 2 hazardous locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal Logistics, Express Shipping \u0026amp; Warranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Delivery:\u003c\/strong\u003e Rapid global dispatch within 24 to 48 hours utilizing trusted tier-one courier services including \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Protection:\u003c\/strong\u003e Backed by an extensive 12-month replacement and performance guarantee covering non-artificial defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Industrial Applications \u0026amp; Equipment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Shutdown Systems (ESD):\u003c\/strong\u003e Managing high-risk safety instrumented functions in oil and gas refineries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Processing Plants:\u003c\/strong\u003e Combining safety interlocks and standard regulatory control loops in a single redundant controller node.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Generation Facilities:\u003c\/strong\u003e Executing high-speed deterministic logic and sequence-of-events recording up to 3000 events per OPC client.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat safety integrity level does the PM857K01 controller support?\u003c\/strong\u003e\u003cbr\u003eWhen combined with an SM812 safety module and certified software, the unit achieves TÜV-certified SIL 3 safety compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I perform routine maintenance diagnostics on the controller?\u003c\/strong\u003e\u003cbr\u003eYou can inspect the onboard LED indicators, utilize the service-dedicated opto-isolated COM4 port for configuration tools, or read diagnostic logs via Control Builder.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum I\/O capacity managed by this CPU board?\u003c\/strong\u003e\u003cbr\u003eThe controller can handle up to 96 Modulebus I\/O modules on a single setup, with a hard system limit of 128 I\/O signals in total.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuying Guide: When should I choose the PM857K01 over standard AC 800M CPUs?\u003c\/strong\u003e\u003cbr\u003eSelect the PM857K01 when your plant architecture demands combined process control and SIL3 safety integration without purchasing separate standalone safety controllers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supply requirements are necessary for stable operation?\u003c\/strong\u003e\u003cbr\u003eThe module operates on 24 V DC (acceptable range 19.2 to 30 V DC) with a typical power consumption of 210 mA and a peak draw of 360 mA.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45463867523254,"sku":"PM857K01","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/PM857K01-3.jpg?v=1789625776","url":"https:\/\/www.plcsparehub.com\/products\/abb-pm857k01-pm857-safety-controller-cpu-module-buy-online","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}