{"product_id":"pm891k02-3bse053242r1-abb-ac-800m-cpu-processors","title":"PM891K02 3BSE053242R1 ABB AC 800M CPU Processors","description":"\u003ch2\u003eABB PM891K02 Redundant Processor Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for redundant CPU execution and Control Network communication in ABB AC 800M controller platforms, the \u003cstrong\u003eABB PM891K02\u003c\/strong\u003e (\u003cstrong\u003ePM891\u003c\/strong\u003e Redundant Processor Unit) provides direct hardware control processing, memory management, and communication handling through integrated CPU, CEX-Bus, and Modulebus interfaces.\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\u003ePM891K02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle Number\u003c\/td\u003e\n\u003ctd\u003e3BSE053242R1\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRedundant Processor Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4000 g including base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eWidth 174 mm, Height 186 mm, Depth 94 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e15.8 W typical, 18 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Integrity\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Type\u003c\/td\u003e\n\u003ctd\u003eMPC8270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock Frequency\u003c\/td\u003e\n\u003ctd\u003e450 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003ctd\u003e0.043 ms per 1000 boolean operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e256 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRAM Available for Application\u003c\/td\u003e\n\u003ctd\u003e208.985 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory for Storage\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware Storage\u003c\/td\u003e\n\u003ctd\u003e16 MB Flash PROM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 V DC (19.2-30 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Current\u003c\/td\u003e\n\u003ctd\u003e660 mA typical, 750 mA maximum at +24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup Battery\u003c\/td\u003e\n\u003ctd\u003eNo internal battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Channels\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Interface\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Network Protocol\u003c\/td\u003e\n\u003ctd\u003eMMS and IAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interface\u003c\/td\u003e\n\u003ctd\u003eCOM4 RS-232C, opto isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCEX-Bus Communication Modules\u003c\/td\u003e\n\u003ctd\u003eMaximum 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCEX-Bus Supply Current\u003c\/td\u003e\n\u003ctd\u003eMaximum 2.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulebus Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 84 S800 I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulebus I\/O Clusters\u003c\/td\u003e\n\u003ctd\u003e7 optical clusters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulebus Scan Rate\u003c\/td\u003e\n\u003ctd\u003e0-100 ms depending on I\/O configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU Switch Over Time\u003c\/td\u003e\n\u003ctd\u003eMaximum 10 ms in redundant configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eABB AC 800M Redundant Control Architecture\u003c\/h3\u003e\n\u003cp\u003eThe PM891K02 integrates CPU redundancy functions across processor units, CEX-Bus communication paths, communication interfaces, and S800 I\/O connections. The unit contains the CPU board, power supply section, and termination components in a single enclosure.\u003c\/p\u003e\n\u003cp\u003eThe processor includes a microprocessor, RAM memory, real-time clock, LED indicators, INIT push button, and Secure Digital interface. Furthermore, the design removes the requirement for an internal backup battery while maintaining controller identity through a unique Ethernet address.\u003c\/p\u003e\n\u003cp\u003eThe integrated CEX-Bus extends communication capability through external interface units. In addition, the BC810 CEX-Bus Interconnection Unit can divide communication segments to increase system availability. The PM891K02 supports redundant communication interfaces connected through the CEX-Bus structure.\u003c\/p\u003e\n\u003cp\u003eThe optical Modulebus interface connects S800 I\/O clusters. Each controller supports up to seven optical clusters, with each cluster supporting up to 12 S800 I\/O units. Therefore, the controller can manage a maximum of 84 connected I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eFirmware Flash Compatibility and Industrial Network Communication\u003c\/h3\u003e\n\u003cp\u003eThe PM891K02 uses firmware storage through Flash PROM and supports Secure Digital service functions for controller maintenance operations. The processor communicates through the AC 800M Control Network using MMS and IAC protocols.\u003c\/p\u003e\n\u003cp\u003eThe dual Ethernet ports provide 10\/100 Mbit\/s network communication for controller-to-controller and system communication functions. Moreover, the controller supports deterministic industrial Ethernet architectures with switched Ethernet backbone configurations.\u003c\/p\u003e\n\u003cp\u003eThe processor supports firmware-based hardware identification through a unique Ethernet address. This function allows the controller unit to maintain individual identification within AC 800M automation systems.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PM891K02 support CPU redundancy functions?\u003cbr\u003eA: Yes. The PM891K02 supports redundant CPU operation including CPU synchronization, CEX-Bus communication interfaces, and S800 I\/O communication paths.\u003c\/p\u003e\n\u003cp\u003eQ: Does the PM891K02 contain an internal backup battery?\u003cbr\u003eA: No. The PM891K02 does not include an internal battery. Time synchronization and controller operation are managed through the integrated hardware design.\u003c\/p\u003e\n\u003cp\u003eQ: What communication interfaces are available on the PM891K02?\u003cbr\u003eA: The unit provides two RJ45 Ethernet ports for Control Network connection and one isolated RJ45 RS-232C COM4 service port for configuration tools.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the PM891K02 on the designated AC 800M controller mounting arrangement with correct mechanical alignment and termination connection.\u003c\/p\u003e\n\u003cp\u003eConnect the 24 V DC power supply according to ABB installation requirements. Verify supply polarity and confirm that redundant power monitoring signals are correctly wired before controller startup.\u003c\/p\u003e\n\u003cp\u003eUse shielded communication cables for Ethernet and serial connections. Route communication wiring separately from high-current power cables to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eWhen installing redundant processor configurations, verify that all required CEX-Bus, RCU Data Link, and RCU Control Link connections are correctly installed.\u003c\/p\u003e\n\u003cp\u003eThe BC810K02 CEX-Bus Interconnection Unit is not included in the PM891K02 kit. A separate BC810K02 installation is required when hot replacement functionality is required.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44654846247000,"sku":"PM891K02 3BSE053242R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/PM891K023BSE053242R1-3.jpg?v=1787649023","url":"https:\/\/www.industriaxplc.com\/ar\/products\/pm891k02-3bse053242r1-abb-ac-800m-cpu-processors","provider":"IndustriaX Limited","version":"1.0","type":"link"}