{"product_id":"schneider-electric-modicon-m238-tm2ddi16dt-discrete-input-modules","title":"Schneider Electric TM2DDI16DT Modicon M238 Discrete Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Schneider Electric TM2DDI16DT is a 16-channel discrete input module designed for integration with Modicon M238 and Twido programmable logic controller systems. This expansion module provides reliable digital state acquisition, detecting binary field potentials and registering channel states via the internal logic chassis network. It is engineered for industrial environments requiring precise, deterministic I\/O monitoring.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16 discrete input channels supporting 24 VDC sink\/source configurations.\u003c\/li\u003e\n\u003cli\u003eIntegrated hardware-controlled I\/O density scaling for minimized execution lag.\u003c\/li\u003e\n\u003cli\u003e500 V RMS isolation between field inputs and internal logic circuitry.\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless compatibility with Modicon M238 and Twido controller firmware profiles.\u003c\/li\u003e\n\u003cli\u003eCompact form factor suitable for high-density control cabinet layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is typically utilized in automated manufacturing, process control, and machine automation environments where high-frequency switching and reliable digital input monitoring are required. It serves as an essential expansion component for scaling I\/O capacity in Modicon-based control architectures.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTM2DDI16DT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSchneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 discrete inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (sink\/source)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e7 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e25 mA at 5 VDC (internal) \/ 40 mA at 24 VDC (external)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e500 V RMS (field to logic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation:\u003c\/strong\u003e Always disconnect operational power before installing or removing the module. Hot-swapping is not supported and may cause controller faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the module onto a 35 mm symmetric DIN rail using the integrated mechanical retention clip to ensure stability against vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Terminate field wiring using the removable screw terminal block. Ensure physical separation between signal wiring and high-voltage AC lines to mitigate electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Maintain adequate clearance above and below the module to facilitate natural convection and cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Does the TM2DDI16DT support live insertion and hot-swap procedures?\u003c\/strong\u003e\u003cbr\u003eA: No. The Modicon M238 and Twido bus interfaces require complete operational power isolation prior to component removal or installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What are the logic threshold parameters for the inputs?\u003c\/strong\u003e\u003cbr\u003eA: A logic state 1 (On) is recognized at 15 VDC or greater (min 2.5 mA). The channel transitions to logic state 0 (Off) when the potential falls below 5 VDC or current drops below 1 mA.\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":50851543384316,"sku":"TM2DDI16DT","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_071f70be-2e50-4058-a39d-8addd6feb55f.jpg?v=1785561284","url":"https:\/\/www.electronicplc.com\/products\/schneider-electric-modicon-m238-tm2ddi16dt-discrete-input-modules","provider":"Electronic PLC","version":"1.0","type":"link"}