{"product_id":"schneider-electric-modicon-tm221c24r-controller-24v-dc","title":"Schneider Electric Modicon TM221C24R Controller – 24V DC","description":"\u003ch2\u003e\u003cstrong\u003eSchneider Electric Modicon TM221C24R – Compact Controller with Integrated Analog I\/O\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Schneider Electric · \u003cstrong\u003eSeries:\u003c\/strong\u003e Modicon · \u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003eTM221C24R\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 24V DC — industrial standard voltage with wide availability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Inputs:\u003c\/strong\u003e 14 points — sink\/source configurable for sensors and switches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Outputs:\u003c\/strong\u003e 10 relay type — 2A per contact, suitable for inductive loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Inputs:\u003c\/strong\u003e 2 channels — 0-10V DC, 10-bit resolution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessor:\u003c\/strong\u003e 32-bit — high-speed logic execution at 22 ns per instruction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgram Memory:\u003c\/strong\u003e 256 kB — ample space for complex automation routines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetention Memory:\u003c\/strong\u003e 64 kB — battery-free data preservation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-Time Clock:\u003c\/strong\u003e Built-in — timestamping and scheduled task execution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion Capability:\u003c\/strong\u003e Supports Modicon TM3 I\/O modules — scalable I\/O count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Weight:\u003c\/strong\u003e 1.00 lbs (0.45 kg) — lightweight and panel-friendly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental Ratings \u0026amp; Mechanical Dimensions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to 55°C — reliable in unconditioned enclosures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40°C to 70°C — withstands transport extremes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity Tolerance:\u003c\/strong\u003e 10% to 95% non-condensing — stable in humid environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Immunity:\u003c\/strong\u003e Meets IEC 61000-4-2, -3, -4, -6 — robust against ESD and transients\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e DIN rail mount — 35 mm symmetrical rail compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 130 mm length × 95 mm width × 70 mm depth — compact footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Rating:\u003c\/strong\u003e IP20 — protected against solid objects larger than 12 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e \u003cstrong\u003eTM221C24R\u003c\/strong\u003e controller, detachable screw terminal blocks, quick start guide, mounting clip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eI\/O Characteristics \u0026amp; Expansion Flexibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Input Type:\u003c\/strong\u003e Sink\/source selectable — 24V DC, 5 ms typical filter time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Output Rating:\u003c\/strong\u003e 2 A per contact at 24V DC or 240V AC — resistive load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Input Range:\u003c\/strong\u003e 0-10V DC — 10-bit resolution, 8 ms conversion time per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion Bus:\u003c\/strong\u003e Right-side expansion port — accepts up to 7 TM3 I\/O modules\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Options:\u003c\/strong\u003e Built-in serial line — supports Modbus RTU master\/slave\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Counters:\u003c\/strong\u003e 4 built-in — 20 kHz maximum frequency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulse Outputs:\u003c\/strong\u003e 2 channels — 1 kHz for stepper or simple motion control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions – Modicon TM221C24R\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat software programs the \u003cstrong\u003eModicon TM221C24R\u003c\/strong\u003e?\u003c\/strong\u003e\u003cbr\u003eSchneider Electric's EcoStruxure Machine Expert - Basic software fully supports this controller. The interface uses ladder logic and FBD editors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan this controller expand beyond the built-in I\/O?\u003c\/strong\u003e\u003cbr\u003eYes. The \u003cstrong\u003eTM221C24R\u003c\/strong\u003e features an expansion port on the right side. It accepts up to 7 Modicon TM3 expansion modules for digital, analog, and temperature I\/O.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the TM221C24R support Ethernet communication?\u003c\/strong\u003e\u003cbr\u003eThe base model does not include Ethernet. Use the TM221CE24R variant for built-in Ethernet. Alternatively, add a serial-to-Ethernet gateway.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow long does retention memory hold data without power?\u003c\/strong\u003e\u003cbr\u003eRetention memory retains data for approximately 20 days at 25°C. The controller uses supercapacitor backup, not battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the maximum current per common terminal?\u003c\/strong\u003e\u003cbr\u003eEach relay output common supports up to 8 A total across all outputs in that group. Distribute higher loads accordingly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan the analog inputs accept 4-20 mA signals?\u003c\/strong\u003e\u003cbr\u003eNative support is 0-10V only. Use an external 250Ω precision resistor to convert 4-20 mA to 1-5V DC signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this model suitable for HVAC applications?\u003c\/strong\u003e\u003cbr\u003eYes. The operating temperature range and analog input capability make it ideal for building automation, pump control, and air handling units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e · Phone: \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":47361136525570,"sku":"TM221C24R","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/TM221C24R.jpg?v=1784799822","url":"https:\/\/www.nex-auto.com\/products\/schneider-electric-modicon-tm221c24r-controller-24v-dc","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}