{"product_id":"abb-pm861-processor-module","title":"ABB PM861 Processor Module","description":"\u003cp\u003eConfigured for high-performance automation logic execution in Advant 800xA control architectures, the \u003cstrong\u003eABB PM861 3BSE018129R1\u003c\/strong\u003e (\u003cstrong\u003ePM861\u003c\/strong\u003e Processor Module) provides direct physical\/electrical execution. Powered by an MPC860 processor running at 24 MHz, the unit executes application task cycles down to 1 ms while managing volatile RAM and onboard flash routines. It handles cyclic control tasks, synchronizes peer-to-peer data transfers, and maintains steady execution across dual-redundant processing configurations.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix \/ Catalog ID\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePM861\u003c\/td\u003e\n\u003ctd\u003eBase Processor Module Family Designation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BSE018129R1\u003c\/td\u003e\n\u003ctd\u003eSpecific Hardware Ordering Part Number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003ePM861 3BSE018129R1\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\u003eStandard ABB Manufacturing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e210 mm x 160 mm x 90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to +50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard AC800M backplane internal power draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Type\u003c\/td\u003e\n\u003ctd\u003eMPC860\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock Frequency\u003c\/td\u003e\n\u003ctd\u003e24 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard RAM\u003c\/td\u003e\n\u003ctd\u003e8 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003eIntegrated firmware storage space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU Redundancy\u003c\/td\u003e\n\u003ctd\u003eSupported (Max 10 ms switchover time)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExecution Cycle Time\u003c\/td\u003e\n\u003ctd\u003eDown to 1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 32 controllers per project; up to 32 applications per controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Performance and Backplane Synchronization\u003c\/h3\u003e\n\u003cp\u003eThe ABB PM861 integrates directly into Profinet \/ EtherNet\/IP deterministic networks, maintaining precise cycle timing across high-density I\/O configurations without introducing latency jitter into central process loops. It supports backplane bus communication velocity structures that enable predictable, high-speed task scanning across distributed I\/O modules. Firmware flash compatibility ensures synchronized system boot sequences, enabling stable CPU redundancy failover within a maximum limit of 10 ms while preserving runtime variables across linked control channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum latency experienced by the control loop during a CPU redundancy switchover?\u003c\/p\u003e\n\u003cp\u003eA: In redundant CPU configurations, the PM861 completes a switchover to the secondary standby processor within a maximum time frame of 10 ms, maintaining uninterrupted output states.\u003c\/p\u003e\n\u003cp\u003eQ: How is system firmware updated on the PM861 module?\u003c\/p\u003e\n\u003cp\u003eA: Firmware updates are loaded into the non-volatile onboard flash memory using standard ABB engineering tooling, ensuring firmware flash compatibility across connected backplane modules without erasing user application RAM during power restarts.\u003c\/p\u003e\n\u003cp\u003eQ: What are the primary thermal constraints when mounting the module inside an enclosure?\u003c\/p\u003e\n\u003cp\u003eA: The module must operate within -10 to +50 deg C ambient conditions. Adequate vertical ventilation space must be maintained above and below the module rack to allow convective airflow through the housing.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower Isolation: Ensure all 24 VDC backplane power connections and field circuit feeds are de-energized prior to inserting or removing the PM861 processor module from the mounting base.\u003c\/li\u003e\n\u003cli\u003eGrounding and EMI Mitigation: Connect the DIN-rail carrier frame to the cabinet ground busbar using a short, low-impedance copper grounding strap to isolate processing electronics from high-frequency electromagnetic noise.\u003c\/li\u003e\n\u003cli\u003eModule Engagement: Align the rear guide slots with the backplane connectors and apply uniform pressure until the module latching mechanism locks firmly into position.\u003c\/li\u003e\n\u003cli\u003eStorage Conditions: If stored before commissioning, preserve the unit within its anti-static packaging in a dry environment maintained between -40 and +70 deg C.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45378131198067,"sku":"PM861","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/PM856AK013BSE066490R1_499a5a1e-5ce8-4daa-ac7b-70a05bd809c0.jpg?v=1787209330","url":"https:\/\/www.dcssupplier.com\/products\/abb-pm861-processor-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}