{"product_id":"sai-1620m-cc-v1-2-honeywell-safe-analog-input-module","title":"SAI-1620M CC V1.2 | Honeywell | Safe Analog Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell SAI-1620M CC V1.2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSAI-1620M\u003c\/strong\u003e Safe Analog Input Module, operates as a dedicated hardware component for multi-channel voltage signal acquisition and safety loop execution within Honeywell Safety Manager and Experion PKS platforms. Designed to ingest 16 analog input channels (0-4 V) alongside 1 external voltage readback channel (0-4 V), the unit interfaces with field instrumentation via field termination assemblies that convert 0-20 mA current loops into proportional voltage inputs. All 16 channels share an isolated analog 0 V reference bus powered by a nominal 24 VDC system supply to preserve signal fidelity under SIL3 operating parameters.\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\u003eSAI-1620M CC V1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC backplane driven\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 analog input channels (0-4 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Readback\u003c\/td\u003e\n\u003ctd\u003e1 external voltage readback input (0-4 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 compliant (IEC 61508)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Scheme\u003c\/td\u003e\n\u003ctd\u003eShared isolated analog 0 V reference across 16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Conversion\u003c\/td\u003e\n\u003ctd\u003e0-20 mA to 0-4 V via field termination assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe SAI-1620M CC V1.2 features internal signal conditioning networks optimized for high-integrity loop voltage ingestion derived from 0-20 mA field transmitters. The common isolated analog 0 V bus provides high-frequency decoupling that suppresses ground potential shifts between field termination assemblies and central processor logic rails. This isolation architecture prevents transient voltage spikes on 4-20 mA HART loop protocol lines from affecting adjacent voltage measurement channels, maintaining SIL3 diagnostic coverage and process control stability across all 16 active inputs.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How are standard 0-20 mA field transmitter signals processed by the 0-4 V input channels?\u003c\/p\u003e\n\u003cp\u003eA: Current-to-voltage conversion takes place on the associated field termination assembly using precision sense resistors, scaling the 0-20 mA loop current down to the required 0-4 V input range before reaching the module connectors.\u003c\/p\u003e\n\u003cp\u003eQ: Can the SAI-1620M CC V1.2 module be hot-swapped within a SIL3 safety rack?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports live insertion and removal, provided the redundant safety manager processor chassis remains active to maintain uninterrupted execution of the safety logic solver.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInsert the module into its assigned chassis slot and push firmly until the rear edge connector seats fully into the backplane socket.\u003c\/li\u003e\n\u003cli\u003eTighten top and bottom retaining screws to establish chassis frame earth bonding and prevent vibration-induced disconnects.\u003c\/li\u003e\n\u003cli\u003eEnsure the dedicated field termination assembly is correctly wired with precision resistors when converting 0-20 mA current loops to the required 0-4 V signal levels.\u003c\/li\u003e\n\u003cli\u003eRoute field analog signal cables separately from high-voltage AC distribution circuits and inductive motor leads inside cabinet wiring conduits.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53625470124341,"sku":"SAI-1620M CC V1.2","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/FS-SAI-1620m_431ebfd0-a404-4835-a775-917c87ab8417.png?v=1790048669","url":"https:\/\/www.5gplc.com\/products\/sai-1620m-cc-v1-2-honeywell-safe-analog-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}