{"product_id":"amm12t-s2-yokogawa-centum-vp-analog-input-multiplexer-module","title":"AMM12T-S2 YOKOGAWA CENTUM VP Analog Input Multiplexer Module","description":"\u003ch2\u003eYOKOGAWA AMM12T-S2 Voltage Input Multiplexer Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA AMM12T-S2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAMM12T\u003c\/strong\u003e Input Module, operates as a dedicated hardware component for high-density signal multiplexing within CENTUM VP and CS DCS system platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAMM12T\u003c\/strong\u003e: Base model identifier for 16-channel analog voltage and thermocouple\/RTD multiplexer functionality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S2\u003c\/strong\u003e: Revision designator indicating updated hardware iteration and compatibility standards for DCS rack backplane integration.\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\u003eAMM12T-S2\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\u003e0.46 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e215 × 70 × 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 Analog\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Types\u003c\/td\u003e\n\u003ctd\u003eDC Voltage, Thermocouple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.15 deg C (TC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control \u0026amp; Isolation Attributes\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAMM12T-S2\u003c\/strong\u003e executes 16-channel analog data acquisition via a high-speed multiplexing architecture. To maintain measurement integrity across diverse input types, the module features channel-to-channel and channel-to-system isolation, which prevents ground-loop interference and common-mode voltage contamination. The integrated analog front-end incorporates active cold junction compensation (CJC) to ensure thermocouple precision for temperature-critical monitoring. By utilizing the 4-20 mA HART loop protocol connectivity—where applicable—the module maintains synchronization with field transmitters, while the 16-bit A\/D conversion stage provides the high dynamic range required for precise process variable mapping.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the AMM12T-S2 perform hot-swapping within the DCS cabinet?\u003c\/p\u003e\n\u003cp\u003eA: Module hot-swap capability is strictly dependent on the specific DCS backplane revision; verify that the system rack supports online module replacement to prevent communication bus disruption or potential damage to input circuits.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module require external excitation for sensors?\u003c\/p\u003e\n\u003cp\u003eA: The AMM12T-S2 does not provide loop power for field devices. Ensure all connected transmitters or sensors are powered by an independent 24 V DC supply in accordance with standard loop wiring requirements.\u003c\/p\u003e\n\u003cp\u003eQ: How does the disconnection detection function operate?\u003c\/p\u003e\n\u003cp\u003eA: The module continuously monitors for open-loop conditions on the input signal paths. If a disconnection is detected, the unit reports a status flag to the DCS controller within a maximum of 20 seconds.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Secure the module to the DCS rack guide rails. Ensure the chassis is properly grounded to the cabinet's common earth point to maintain the module's noise immunity profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring\u003c\/strong\u003e: Use shielded twisted-pair thermocouple extension wire or instrumentation-grade cable for all inputs. Terminate the shield at the cabinet side to drain induced electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Isolation\u003c\/strong\u003e: Maintain physical distance between low-level signal wiring and AC power conductors. Utilize dedicated wire troughs to prevent inductive coupling into the multiplexer input stage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental\u003c\/strong\u003e: Operate within the specified temperature range to prevent thermal gradients across the terminal block, which can influence the accuracy of the internal cold junction compensation circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43648941260890,"sku":"AMM12T-S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/513._72ca8f81-39d8-4ae7-8699-8b41c764950a.jpg?v=1783909355","url":"https:\/\/www.spareoil.com\/ar\/products\/amm12t-s2-yokogawa-centum-vp-analog-input-multiplexer-module","provider":"SpareOil Automation","version":"1.0","type":"link"}