{"product_id":"schneider-electric-tm2ddi8dt-i-o-expansion-module-modicon","title":"TM2DDI8DT Schneider Electric Digital Input Module Modicon M238","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSchneider Electric TM2DDI8DT\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTM2DDI8DT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eI\/O expansion module, operates as a dedicated hardware component for discrete signal acquisition within Modicon M238 logic controller systems.\u003c\/p\u003e\n\u003ch3\u003eNomenclature and Architecture\u003c\/h3\u003e\n\u003cp\u003eThe TM2DDI8DT follows standard industrial coding. \"TM2\" designates the hardware generation for M238 logic controller compatibility, \"DDI\" defines the function as a digital input expansion, \"8\" specifies the channel count, and \"DT\" indicates the terminal connection type and input circuit configuration.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTM2DDI8DT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSchneider Electric\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot stated\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.8 cm x 10.6 cm x 7.6 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot stated\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25 mA at 5 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDiscrete Input Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC (20.4...28.8 V)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.4 kOhm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eResponse Time\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 ms (state 0), 4 ms (state 1)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIndustrial Control and Bus Performance\u003c\/h3\u003e\n\u003cp\u003eThe module maintains integration within the system architecture through dedicated I\/O density scaling mechanisms. Communication is facilitated by the controller bus, ensuring data throughput is optimized for the scan cycle of the host processor. While firmware flash compatibility is inherent to the controller system, the expansion module serves as a static I\/O node. Deterministic network performance is managed by the backplane bus communication velocity, ensuring that digital state changes are registered within the specified 4 ms response window.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1 x TM2DDI8DT I\/O expansion module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Removable screw terminal block\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical Mounting: Secure the module onto a 35 mm symmetrical DIN rail using the integrated mechanical locking mechanism.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical Connection: Ensure that the 24 VDC field power supply is correctly referenced to the input common point.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWiring Constraints: Terminate field conductors directly into the removable screw terminal block. Ensure torque is applied consistently to prevent high-resistance connections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSignal Isolation: The module provides 500 V isolation between channels and internal logic for 1 minute; maintain proper separation from high-voltage AC paths to prevent induced noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIs this module hot-swappable?\u003c\/p\u003e\n\u003cp\u003eNo, this module is not hot-swappable. The I\/O bus power must be de-energized before mounting or dismounting the module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the common point configuration?\u003c\/p\u003e\n\u003cp\u003eThe module features 1 common point for the 8 discrete inputs, supporting both sink and source logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the module powered?\u003c\/p\u003e\n\u003cp\u003eThe module draws logic power from the internal 5 VDC bus and requires an external 24 VDC supply for the input circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this module provide channel-to-channel isolation?\u003c\/p\u003e\n\u003cp\u003eNo, there is no isolation between the individual input channels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the input impedance fixed?\u003c\/p\u003e\n\u003cp\u003eYes, the input impedance is fixed at 3.4 kOhm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this module be used with Twido controllers?\u003c\/p\u003e\n\u003cp\u003eYes, the hardware is compatible with Twido and Advantys OTB systems as per manufacturer specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat happens if input voltage exceeds 28.8 V?\u003c\/p\u003e\n\u003cp\u003eExceeding the specified 20.4...28.8 V range may cause component degradation or failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the status of the inputs indicated?\u003c\/p\u003e\n\u003cp\u003eLocal signaling is provided via a dedicated display block on the front face of the module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":46455268245677,"sku":"TM2DDI8DT","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/TM2DDI8DT_2.jpg?v=1782727067","url":"https:\/\/www.maxwellplc.com\/ru\/products\/schneider-electric-tm2ddi8dt-i-o-expansion-module-modicon","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}