{"product_id":"yokogawa-alr111-s51-serial-communication-module","title":"Yokogawa ALR111-S51 Serial Communication Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ALR111-S51\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eALR111\u003c\/strong\u003e Serial Communication Module, operates as a dedicated hardware component for multi-channel serial telemetry interception, data register mapping, and remote subsystem interfacing within CENTUM VP field control architectures. The interface card converts physical RS-232C link potentials natively at the hardware tier to stream Modbus or user-defined protocol arrays directly into host Field Control Station (FCS) processor memories.\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\u003eALR111-S51\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP \/ FIO Subsystem Matrix\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\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e2 kg (4.41 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Architecture\u003c\/td\u003e\n\u003ctd\u003eStandalone FIO dual-port serial interface board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Ports\u003c\/td\u003e\n\u003ctd\u003e2 x RS-232C discrete asynchronous communication channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Distance\u003c\/td\u003e\n\u003ctd\u003e15 meters typical per standard RS-232C physical wire limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExplosion Protection\u003c\/td\u003e\n\u003ctd\u003eSuffix code 5: With no explosion protection barriers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Fortification\u003c\/td\u003e\n\u003ctd\u003eSuffix code 1: Conformal coating matching ISA Standard G3 severity profiles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eDual-module mirroring configuration capable via software assignment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C (+32 to +140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A at 5 VDC continuous internal backplane draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCommunication Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDistributed Process Automation Telemetry\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA HART Loop Protocol and Secondary Telemetry Bridging\u003c\/strong\u003e The serial card processes background alphanumeric commands alongside primary register scans, establishing a data gateway to match older, legacy sub-panels or smart electronic packages. This topology permits complex secondary variables from multi-variable instruments to feed straight into CENTUM VP software faceplates, keeping active 4-20 mA HART monitoring channels clean of transit collisions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOUNDATION Fieldbus \/ Profibus PA Connectivity and Bus Synchronization\u003c\/strong\u003e The system coordinates external serial links with modern industrial automation fieldbuses. The hardware manages serial-to-backplane packet transformations across the two independent ports, ensuring the data from third-party control systems or logic units aligns with the microsecond internal scanning cycles of the central FCS processor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the ALR111-S51 manage dual-redundant tracking modes when an active module experiences a physical line break?\u003c\/p\u003e\n\u003cp\u003eA: When wired in an adjacent redundant slot layout, the slave board continuously mirrors the active port parameters. If a signal frame loss or internal trace fault occurs on the primary interface, the FCS core processor executes an electronic port switchover, rerouting data streams across the backup unit without stopping the master calculation logic.\u003c\/p\u003e\n\u003cp\u003eQ: What programmatic or physical indicators manifest if the module is exposed to corrosive gas mixtures beyond the ISA G3 threshold?\u003c\/p\u003e\n\u003cp\u003eA: While the factory-applied G3 conformal coating isolates the internal logic tracks from trace sulfur and chlorine, exposure past designated severity parameters will corrode unshielded edge contacts. This corrosion shows as intermittent transmission checksum errors, leading to localized network buffer errors and a steady fault indicator on the module faceplate.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":47693241516222,"sku":"ALR111-S51","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-15_17-52-24_97961282-17f5-4fd6-89b1-f6372271aa70.png?v=1782098434","url":"https:\/\/www.autooiltech.com\/es\/products\/yokogawa-alr111-s51-serial-communication-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}