{"product_id":"mc-tdiy22-honeywell-digital-input-fta-new-original-stock","title":"MC-TDIY22 Honeywell Digital Input FTA | New \u0026 Original Stock","description":"\u003ch2\u003eHoneywell MC-TDIY22 Experion PKS Digital Input FTA Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete signal collection in Experion PKS networks, the \u003cstrong\u003eHoneywell MC-TDIY22\u003c\/strong\u003e (\u003cstrong\u003eMC-TDIY22\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution. The hardware interface functions as a 32-channel Field Termination Assembly (FTA) that acquires binary state transitions from field switches, sensors, and contact points, converting physical contact breaks into localized electronic status packets.\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\u003eMC-TDIY22 (Part Number: 51204160-175)\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.308 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e160 mm x 100 mm x 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSourced via backplane interface (5 mA nominal per input channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Density\u003c\/td\u003e\n\u003ctd\u003e32 discrete digital input channels\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\u003eIsolation Type\u003c\/td\u003e\n\u003ctd\u003eOptical isolation between channels and internal system bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eCompact rack-mount \/ Field Termination Assembly layout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-50 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing relative humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL508, CSA, TUV compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe MC-TDIY22 coordinates discrete signal acquisition across its high-density termination layout by deploying optoelectronic decoupling pairs. While analog instrumentation tracks fluid variables over the 4-20 mA HART loop protocol, this digital module isolates binary switching logic from control room backplane hardware through strict channel-to-channel isolation arrays. This design blocks inductive transients, high-voltage field spikes, and ground potential differences from jumping the primary logic boundary, eliminating cross-talk and protecting the central processor loops from noise during contact bouncing.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the MC-TDIY22 assembly allow live replacement or hot-swapping while the host I\/O rack is online?\u003c\/p\u003e\n\u003cp\u003eA: No. Removing or seating this Field Termination Assembly while power is applied to the 24 VDC input circuits can cause terminal arcing and signal disruptions on adjacent modules. Power to the field loop and system interface cables must be isolated prior to replacement.\u003c\/p\u003e\n\u003cp\u003eQ: How is the 24 VDC wet supply monitored for faults across the 32 input channels?\u003c\/p\u003e\n\u003cp\u003eA: The module relies on the host controller software to verify input circuit loop status. If field loop voltage drops below the designated threshold, the channel registers an open or un-wet contact state, protecting downstream control algorithms from corrupted binary tracking.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFTA Chassis Rail Grounding\u003c\/strong\u003e: Mount the assembly firmly onto the designated cabinet chassis plate or DIN-rail structure. Verify a low-resistance metallic connection between the module framing ground points and the primary cabinet master earth bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Wire Separation\u003c\/strong\u003e: Route all 24 VDC field contact wires in dedicated, low-voltage wire trays. Ensure complete separation from high-voltage AC motor conductors and heavy inductive ignition lines to suppress electromagnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Continuity Management\u003c\/strong\u003e: Connect external multi-conductor field cable shields directly to the chassis ground terminal block. Ensure the field-side shield ends are insulated to prevent the formation of circulating ground loops across long conduit paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Environment Verification\u003c\/strong\u003e: Mount the FTA inside a sealed control enclosure that maintains ambient conditions between -40 and 70 deg C, keeping convective airflow unimpeded across the module surface.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43869098573923,"sku":"MC-TDIY22 51204160-175","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/41.2_00ef17f0-04da-49c9-9668-c59915d4e4f4.jpg?v=1780649191","url":"https:\/\/www.autocontrolglobal.com\/products\/mc-tdiy22-honeywell-digital-input-fta-new-original-stock","provider":"AutoControl Global","version":"1.0","type":"link"}