{"product_id":"honeywell-tc-idd321-digital-input-module","title":"Honeywell TC-IDD321 Digital Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell TC-IDD321\u003c\/strong\u003e is a 32-channel discrete digital input module engineered for Honeywell Experion LS control systems. Operating at a nominal input voltage of 24 VDC, it conditions high-density binary signals from field switches, proximity sensors, and contact points across two isolated 16-point groups.\u003c\/p\u003e\n\u003ch3\u003eInput Electrical Limits and IEC Compliance\u003c\/h3\u003e\n\u003cp\u003eThe module complies with IEC Type 1+ input signal standards to ensure broad field instrument compatibility. It establishes a minimum on-state current of 2 mA to confirm active signal states, while maintaining an off-state threshold capped at a maximum 5 V and 1.5 mA leakage current to prevent false switching.\u003c\/p\u003e\n\u003ch3\u003eCircuit Isolation and Wiring Interfacing\u003c\/h3\u003e\n\u003cp\u003eBuilt to safeguard system electronics from electrical noise and field transients, the \u003cstrong\u003eTC-IDD321\u003c\/strong\u003e features galvanic isolation tested at 1500 VDC for 1 second both between input channels and between field-side user circuits and the system backplane. Field wiring connects through a 36-position terminal block (model TC-TBNH), and total power dissipation is rated at a maximum of 6.1 W.\u003c\/p\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\u003eTC-IDD321\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\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eExperion LS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e32 (16 points per common)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current (Minimum)\u003c\/td\u003e\n\u003ctd\u003e2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage (Maximum)\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current (Maximum)\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Standard Compatibility\u003c\/td\u003e\n\u003ctd\u003eIEC Type 1+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage (Channel to Channel)\u003c\/td\u003e\n\u003ctd\u003e1500 VDC for 1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage (User to System)\u003c\/td\u003e\n\u003ctd\u003e1500 VDC for 1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e6.1 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Terminal Blocks\u003c\/td\u003e\n\u003ctd\u003eTC-TBNH (36-position terminal block)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: How are the 32 input channels on the TC-IDD321 grouped?\u003c\/p\u003e\n\u003cp\u003eA: The 32 digital input channels are arranged into two groups of 16 points per common terminal.\u003c\/p\u003e\n\u003cp\u003eQ: What terminal block is required for field wiring on the TC-IDD321?\u003c\/p\u003e\n\u003cp\u003eA: Field wiring connects via the TC-TBNH 36-position terminal block.\u003c\/p\u003e\n\u003cp\u003eQ: What level of electrical isolation does this module provide?\u003c\/p\u003e\n\u003cp\u003eA: The module provides 1500 VDC isolation for 1 second across both channel-to-channel and user-to-system circuit boundaries.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52146212766005,"sku":"TC-IDD321","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/TC-IDD321_5a68c92d-1f7c-478c-89d1-7101e62075f1.jpg?v=1767774625","url":"https:\/\/www.5gplc.com\/products\/honeywell-tc-idd321-digital-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}