{"product_id":"analog-input-processor-module-yokogawa-aip121-s2-centum","title":"Analog Input Processor Module Yokogawa AIP121 S2 CENTUM","description":"\u003ch2\u003eYokogawa AIP121 S2 Analog Input Processor Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa AIP121 S2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAIP121\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for analog signal acquisition within CENTUM VP and CS 3000 distributed control system architectures. The hardware implements direct physical execution of analog-to-digital data conversion, routing field measurement loops through an integrated 16-bit processing stage. The hardware accepts 4-20 mA DC current inputs alongside 0-10 V DC and +\/-5 V DC voltage signals from remote field instruments, streaming the digitized values directly across the system backplane network interface.\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\u003eAIP121 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\u003e0.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e260 mm x 180 mm x 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Processor Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e8 isolated channels\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+\/-0.055% to +\/-0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ohm current \/ High impedance voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation between channels and system bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual redundant configuration supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control Input Loop Architectures\u003c\/h3\u003e\n\u003cp\u003eThe analog processor incorporates hardware circuits designed to interface with standard 4-20 mA HART loop protocol parameters across the termination infrastructure. Channel-to-channel galvanic isolation prevents cross-talk and blocks transient voltage surges before they can propagate into the host backplane logic. For temperature loop configurations, internal cold junction compensation (CJC) circuits track ambient terminal temperature shifts to maintain stable mathematical scaling over the configured measurement span.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the module handle signal degradation during a field wire break condition on a 4-20 mA current loop?\u003c\/p\u003e\n\u003cp\u003eA: The onboard 16-bit analog-to-digital converter continuously tracks input thresholds. When an open-loop condition causes the signal to drop below the live-zero value (less than 4 mA), the card sets a channel fault bit on the backplane bus to alert the central processing unit.\u003c\/p\u003e\n\u003cp\u003eQ: Is online hot-swap replacement permitted for the module while the field station remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping depends entirely on the design constraints of the specific system chassis slot. Field engineers must verify that the active backplane sub-rack configuration supports online extraction to avoid causing communication disruption on adjacent operational nodes.\u003c\/p\u003e\n\u003cp\u003eQ: What action initiates role switching in a dual-redundant hardware installation?\u003c\/p\u003e\n\u003cp\u003eA: The active card transmits periodic health signals over the backplane network. If internal diagnostics detect a field-side power failure or a component fault, the card stops transmitting the health signal, causing the secondary card to instantly assume execution control over the process loops.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Earth Bonding:\u003c\/strong\u003e Install the module firmly into the rack framework. Ensure the hardware mounting brackets maintain clean, unpainted contact with the cabinet metal structure to establish a low-impedance path to the main instrumentation ground bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Shielding Matrix:\u003c\/strong\u003e Connect all external twisted-pair signal cable shields directly to the dedicated cabinet shield ground bar. Do not ground the cable shield at both the field device and the cabinet to prevent the creation of ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural Separation:\u003c\/strong\u003e Route low-voltage analog input wiring through dedicated wire ducts, keeping them a minimum distance of 200 mm away from high-power AC distribution cables and motor drive loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Interface Security:\u003c\/strong\u003e Tighten all front-panel retention screws and terminal blocks to factory specifications to eliminate intermittent physical contact variations that induce measurement noise.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43660756451418,"sku":"AIP121 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/536_c99ad9f9-d6b6-4389-be97-b0a2f80a7aba.jpg?v=1784079970","url":"https:\/\/www.spareoil.com\/products\/analog-input-processor-module-yokogawa-aip121-s2-centum","provider":"SpareOil Automation","version":"1.0","type":"link"}