{"product_id":"f3sp28-3n-yokogawa-fa-m3-sequence-controller-cpu-module","title":"F3SP28-3N Yokogawa FA-M3 Sequence Controller CPU Module","description":"\u003ch2\u003eYokogawa F3SP28-3N Sequence CPU Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa F3SP28-3N\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eF3SP28-3N\u003c\/strong\u003e Sequence CPU Module, operates as a dedicated hardware component for high-speed sequence control and ladder logic execution within FA-M3V controller 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\u003eF3SP28-3N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.11 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e33 mm (W) x 102 mm (H) x 89 mm (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard backplane power from FA-M3 base unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Series\u003c\/td\u003e\n\u003ctd\u003eFA-M3V \/ FA-M3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruction Execution Speed\u003c\/td\u003e\n\u003ctd\u003e0.045 us per basic instruction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Capacity\u003c\/td\u003e\n\u003ctd\u003e30K ladder steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScan Time\u003c\/td\u003e\n\u003ctd\u003e1 ms for 6,000 steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 4,096 local and remote points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Architecture\u003c\/td\u003e\n\u003ctd\u003eIntegrated Flash memory plus RAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003eEthernet, RS-232C, RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eRUN, ALARM, and ERROR LED indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eFA-M3 backplane base unit slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication \u0026amp; Firmware Execution\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa F3SP28-3N processes discrete automation tasks using a 0.045 us basic instruction execution engine. High-speed backplane bus communication velocity allows the CPU module to update up to 4,096 local and remote I\/O channels with a scan cycle time of 1 ms per 6,000 ladder steps. Program logic stores within non-volatile onboard Flash memory, eliminating logic loss during power supply interruptions, while internal RAM handles dynamic data register buffering and real-time task allocation across the FA-M3 system bus.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the F3SP28-3N retain program logic and data registers during power outages?\u003c\/p\u003e\n\u003cp\u003eA: Logic instructions persist in internal non-volatile Flash memory without external power, while dynamic data registers and real-time clock (RTC) states require an operational lithium backup battery installed on the CPU module.\u003c\/p\u003e\n\u003cp\u003eQ: Can the CPU module be inserted or removed while the FA-M3 base unit is powered on?\u003c\/p\u003e\n\u003cp\u003eA: No, inserting or removing the F3SP28-3N CPU module while the base unit power supply is active causes backplane bus errors and risks electrical damage to the CPU logic board.\u003c\/p\u003e\n\u003cp\u003eQ: What diagnostic indicators report system status during execution faults?\u003c\/p\u003e\n\u003cp\u003eA: Front-panel RUN, ALARM, and ERROR LEDs signal execution states. A solid or flashing ERROR LED pinpoints instruction errors, hardware failures, or backplane bus communication interruptions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eField engineers must carry out standard handling and setup routines when installing or replacing the F3SP28-3N CPU module:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize the FA-M3 base unit power supply before seating the CPU module into its designated primary controller slot.\u003c\/li\u003e\n\u003cli\u003eAlign the top and bottom module guide rails carefully with the backplane connector before pushing the unit firmly into place until the locking lever engages.\u003c\/li\u003e\n\u003cli\u003eEstablish proper enclosure grounding to maintain shielding performance and reduce high-frequency electromagnetic interference along field communication lines.\u003c\/li\u003e\n\u003cli\u003eRoute serial RS-232C\/RS-485 cables and Ethernet communication runs in separate cable trays away from high-voltage AC power wiring and motor lead channels.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43901437804634,"sku":"F3SP28-3N","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/64._dfba2dd1-f67f-433d-86fb-1a3bfc38aeea.jpg?v=1787620407","url":"https:\/\/www.spareoil.com\/products\/f3sp28-3n-yokogawa-fa-m3-sequence-controller-cpu-module","provider":"SpareOil Automation","version":"1.0","type":"link"}