{"product_id":"honeywell-900c31-0244-00-cpu-processors","title":"Honeywell 900C31-0244-00 CPU Processors","description":"\u003cdiv class=\"qk-md-paragraph\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 900C31-0244-00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e900C31-0244-00\u003c\/strong\u003e C30 CPU Module, operates as a dedicated hardware component for central function block execution and deterministic process logic scanning within Honeywell HC900 Control System 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\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\u003e900C31-0244-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.20 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6.8 cm x 10.7 cm x 7.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard HC900 backplane draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Architecture\u003c\/td\u003e\n\u003ctd\u003e32-bit ARM Cortex processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 2,000 function blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScan Performance\u003c\/td\u003e\n\u003ctd\u003eMinimum 27 ms logic scan rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capabilities\u003c\/td\u003e\n\u003ctd\u003eLocal and remote I\/O expansion support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Mounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail mounting chassis installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCold Junction Compensation and Loop Protocol Performance\u003c\/h3\u003e\n\u003cp\u003eDesigned to process complex analog feedback and discrete control loops, the central processor coordinates field variable updates across local and remote rack structures. Optical channel-to-channel isolation on backplane communication links prevents ground potential offsets and electrical transients from affecting CPU execution memory. Integrated cold junction compensation (CJC) algorithms maintain high-accuracy temperature loop calculations when processing remote thermocouple inputs, while 4-20 mA HART diagnostic pass-through data is handled deterministically over Ethernet and serial fieldbus interfaces.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How are cybersecurity parameters maintained on the 900C31-0244-00 module?\u003c\/p\u003e\n\u003cp\u003eA: Security protection is embedded directly at the controller level, utilizing encrypted communication channels, password-restricted engineering access, and user authentication protocols for configuration downloads.\u003c\/p\u003e\n\u003cp\u003eQ: What happens to function block execution if the logic scan time exceeds 27 ms?\u003c\/p\u003e\n\u003cp\u003eA: The 32-bit ARM Cortex processor manages task prioritization, allowing deterministic function blocks to execute at fixed intervals while scheduling non-critical diagnostic tasks in background cycles.\u003c\/p\u003e\n\u003cp\u003eQ: Can remote I\/O racks be attached directly to this CPU module?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the 900C31-0244-00 natively supports remote I\/O rack expansion via dedicated Ethernet network interfaces, maintaining cyclic signal updates to the central process memory map.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eSlide the CPU card into the dedicated controller slot of the HC900 rack assembly until the backplane connectors seat completely and the retention latches engage. Ensure the DIN rail or panel backplate is connected to the primary cabinet ground bus using a low-impedance copper strap to prevent electrostatic discharge. Maintain a minimum vertical clearance of 100 mm above and below the chassis for natural thermal dissipation. Shielded Ethernet cabling must be routed separately from three-phase AC power lines with at least 300 mm physical spacing.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52783308931352,"sku":"900C31-0244-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/900C32-0141-00_Cocoai_deb5fbd6-6d6f-4cda-b2f4-054f9e1d1730.jpg?v=1790584380","url":"https:\/\/www.innoplcsync.com\/products\/honeywell-900c31-0244-00-cpu-processors","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}