{"product_id":"abb-ac-800m-cpu-processors-pm861a-3bse018158r1","title":"ABB AC 800M CPU Processors PM861A 3BSE018158R1","description":"\u003ch2\u003eABB PM861A Processor Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB 3BSE018158R1 PM861A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePM861A\u003c\/strong\u003e Processor Module, operates as a dedicated hardware component for control execution, communication management, and I\/O processing within ABB AC 800M System 800xA platforms.\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\u003ePM861A\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\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProcessor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpare Model\u003c\/td\u003e\n\u003ctd\u003e3BSE018158R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003eMPC8245\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRAM Memory\u003c\/td\u003e\n\u003ctd\u003e16 MB ECC protected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e8 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExecution Performance\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.5 ms standard instruction execution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Interface\u003c\/td\u003e\n\u003ctd\u003e2 x 10\/100 Base-TX ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interface\u003c\/td\u003e\n\u003ctd\u003e2 x RS-232C ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Bus\u003c\/td\u003e\n\u003ctd\u003eCEX Bus for communication module expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU Redundancy\u003c\/td\u003e\n\u003ctd\u003eSupported with redundancy link and matching processor module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 115 mm W x 185 mm H x 135 mm D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e+10 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eABB AC 800M Backplane and Network Integration\u003c\/h3\u003e\n\u003cp\u003eThe PM861A operates as an AC 800M controller processor and exchanges data through the controller backplane and communication interfaces. Furthermore, the module supports CEX Bus expansion for additional communication units, including CI series interfaces. The processor manages application execution, I\/O data exchange, and system communication functions through configured ABB Control Builder applications.\u003c\/p\u003e\n\u003cp\u003eThe module supports industrial control network functions through dual Ethernet ports. Therefore, it can handle MMS communication, engineering tool connections, and System 800xA control network traffic. The RS-232C interfaces provide configurable serial communication channels for supported external devices.\u003c\/p\u003e\n\u003cp\u003eFor ABB industrial control architectures, the PM861A uses firmware-controlled execution with flash memory storage. In addition, the ECC protected RAM structure provides memory error detection during processor operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PM861A support CPU redundancy configuration?\u003cbr\u003eA: Yes. The PM861A supports processor redundancy when installed with a matching processor module and a dedicated redundancy communication link.\u003c\/p\u003e\n\u003cp\u003eQ: Which communication expansion method does the PM861A use?\u003cbr\u003eA: The PM861A uses the CEX Bus interface for connection of compatible ABB communication modules.\u003c\/p\u003e\n\u003cp\u003eQ: Can the PM861A communicate with serial field devices?\u003cbr\u003eA: Yes. The processor includes two RS-232C serial ports that can be configured for supported serial communication functions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the PM861A in an ABB AC 800M controller assembly with the correct mounting position and approved hardware configuration. Verify that the module is properly seated on the controller backplane before applying power.\u003c\/p\u003e\n\u003cp\u003eUse shielded communication cables for external network connections where required by the installation environment. Connect cable shields according to the site grounding standard to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eMaintain proper separation between communication wiring and high-voltage power cables. Confirm that the 24 VDC supply wiring follows the polarity and grounding requirements defined for the AC 800M controller system.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify firmware compatibility, controller configuration, communication module installation, and I\/O addressing through the ABB engineering environment.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44654762852440,"sku":"PM861A 3BSE018158R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/PM866A3BSE076359R1-3_8d6419a4-c822-42b2-a2b3-26b13148a68c.jpg?v=1787644732","url":"https:\/\/www.industriaxplc.com\/products\/abb-ac-800m-cpu-processors-pm861a-3bse018158r1","provider":"IndustriaX Limited","version":"1.0","type":"link"}