{"product_id":"yokogawa-alf111-s00-s1-foundation-fieldbus-ff-h1-communication-module","title":"YOKOGAWA ALF111-S00 S1 Foundation Fieldbus FF-H1 Communication Module","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA ALF111-S00 S1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eALF111\u003c\/strong\u003e Communication Module, operates as a dedicated hardware component for fieldbus network integration within Centum VP distributed control system platforms. This module provides direct physical\/electrical execution for connecting FOUNDATION Fieldbus H1 segments to the control network, enabling seamless data exchange between the host controller and field-mounted instruments.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eALF111\u003c\/strong\u003e: Base communication module model for Foundation Fieldbus H1 interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S00\u003c\/strong\u003e: Standard hardware revision for direct integration into Yokogawa fieldbus I\/O modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS1\u003c\/strong\u003e: Specific product iteration\/manufacturing revision level.\u003c\/li\u003e\n\u003c\/ul\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\u003eALF111-S00 S1\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e12.7 cm x 2.5 cm x 12.7 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.5 W (Typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003eFoundation Fieldbus FF-H1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSegment Connection\u003c\/td\u003e\n\u003ctd\u003e1 Segment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFOUNDATION Fieldbus Connectivity and Process Control\u003c\/h3\u003e\n\u003cp\u003eThe ALF111-S00 S1 utilizes specialized circuitry to manage FF-H1 segment communication, ensuring deterministic data exchange between the field instrumentation and the DCS backplane. The module provides internal galvanic isolation to protect the control system from segment-side electrical surges and noise. It supports standard FOUNDATION Fieldbus protocol stacks, facilitating real-time process monitoring, loop control, and device diagnostics for connected pressure, temperature, and flow transmitters.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the ALF111 module capable of powering the H1 fieldbus segment directly?\u003c\/p\u003e\n\u003cp\u003eA: No, the ALF111 performs the communication interface duties; a separate fieldbus power supply and power conditioner are required to provide the necessary DC voltage to the H1 segment.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module be hot-swapped while the fieldbus segment is active?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports hot-swapping within the Yokogawa control station, provided that the DCS configuration supports online module replacement and the fieldbus power is maintained separately to prevent segment communication loss.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the segment impedance is correctly matched by installing appropriate terminators at both ends of the H1 fieldbus segment to prevent signal reflections.\u003c\/li\u003e\n\u003cli\u003eEnsure the module is fully seated into the designated backplane slot and the latching mechanism is engaged to maintain constant electrical contact.\u003c\/li\u003e\n\u003cli\u003eUse shielded, twisted-pair cabling for fieldbus segments and ensure the cable shield is grounded at a single point to mitigate electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum clearance around the module to allow for proper thermal dissipation during operation within the specified temperature range.\u003c\/li\u003e\n\u003cli\u003ePerform a visual check of the status LEDs after system power-up to confirm the module has established logical communication with the segment devices.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49795584819452,"sku":"ALF111-S00 S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/ALF111-S00_S1.jpg?v=1783993709","url":"https:\/\/www.electronicplc.com\/products\/yokogawa-alf111-s00-s1-foundation-fieldbus-ff-h1-communication-module","provider":"Electronic PLC","version":"1.0","type":"link"}