{"product_id":"rtd-input-multiplexer-module-amm31t-yokogawa","title":"RTD Input Multiplexer Module | AMM31T Yokogawa","description":"\u003ch2\u003eYokogawa AMM31T RTD Input Multiplexer Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa AMM31T\u003c\/strong\u003e also cataloged as the \u003cstrong\u003eAMM31T RTD Input Multiplexer Module\u003c\/strong\u003e, operates as a dedicated hardware component for resistance temperature detector signal acquisition within Yokogawa CENTUM CS and CENTUM VP I\/O subsystems.\u003c\/p\u003e\n\u003cp\u003eConfigured for multi-channel RTD resistance measurement in Yokogawa distributed control architectures, the \u003cstrong\u003eYokogawa AMM31T\u003c\/strong\u003e (\u003cstrong\u003eAMM31T RTD Input Multiplexer Module\u003c\/strong\u003e) provides direct electrical scanning and multiplexing of field RTD inputs into a unified backplane data stream.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eAMM31T: Fixed model designation.\u003cbr\u003eNo published suffix segmentation or option code structure is defined in available module-level documentation.\u003cbr\u003eAll functional variation is handled at system configuration and I\/O assignment level within CENTUM engineering tools.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModelBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa AMM31T\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\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e-10 degC to +55 degC (system module rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003eSupplied via I\/O backplane (value not specified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 RTD channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Sensors\u003c\/td\u003e\n\u003ctd\u003ePt100, Pt1000 class RTD elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Mode\u003c\/td\u003e\n\u003ctd\u003e3-wire \/ 4-wire RTD configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e-200 degC to +600 degC (sensor dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel or group isolation (system dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Method\u003c\/td\u003e\n\u003ctd\u003eMultiplexed sequential scanning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and RTD Linearization Handling\u003c\/h3\u003e\n\u003cp\u003eThe AMM31T implements RTD signal acquisition through time-division multiplexing across 16 input channels. Each channel undergoes resistance-to-temperature conversion with internal linearization tables executed at module or node processing level. Channel grouping isolation is applied to reduce inter-channel coupling effects under high-density RTD termination conditions.\u003c\/p\u003e\n\u003cp\u003eIntegration within CENTUM I\/O nodes supports continuous scan scheduling aligned with backplane communication cycles, where each RTD channel is periodically sampled and converted into normalized engineering values prior to transmission to the control processor.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AMM31T support hot-swap insertion during active RTD measurement cycles?\u003cbr\u003eA: Hot-swap capability is determined by the I\/O rack architecture. During insertion or removal, channel scan interruption and temporary invalid data flags may be generated at the node level.\u003c\/p\u003e\n\u003cp\u003eQ: How is lead-wire resistance compensated in 3-wire RTD configurations?\u003cbr\u003eA: Compensation is handled through differential measurement across excitation and return paths, with correction applied during resistance calculation within the module processing stage.\u003c\/p\u003e\n\u003cp\u003eQ: What is the effect of multiplexing on per-channel update latency?\u003cbr\u003eA: Channel update latency is dependent on full scan cycle time across all active RTD inputs, resulting in sequential sampling delays across the 16-channel matrix.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eShielded RTD cables shall be grounded at a single termination point, typically at the cabinet entry side to avoid ground loop formation. Twisted-pair routing is required for each RTD channel to maintain measurement integrity under industrial noise conditions.\u003c\/p\u003e\n\u003cp\u003eModule seating into the CENTUM I\/O rack shall be performed with backplane alignment verification prior to full insertion force application. Terminal torque values must follow cabinet-level wiring standards specified by the system integrator. Separation between power wiring and low-level RTD signal wiring shall be maintained along full routing paths to minimize induced noise coupling.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44165758189656,"sku":"AMM31T","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/AMM31T-2.jpg?v=1780371551","url":"https:\/\/www.industriaxplc.com\/products\/rtd-input-multiplexer-module-amm31t-yokogawa","provider":"IndustriaX Limited","version":"1.0","type":"link"}