{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM258LD42DT","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM258LD42DT","canonicalUrl":"https://aoctrl.com/schneider/TM258LD42DT","factsUrl":"https://aoctrl.com/api/mcp/products/TM258LD42DT","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Modicon M258 logic controller, TM258LD42DT, 42 discrete I/O, 24 V DC, 13.03 W, IP20.","salesMarkdown":"## Controller overview and I/O configuration The TM258LD42DT: Power consumption is 13.03 W from a 24 V DC supply rail (20.4…28.8 V limits). The main supply draws 0.25 A; the I/O power segment draws 10 A. Backplane power for embedded expert modules is 0.04 A. A CR2477M lithium cell backs up retain and retain-persistent variables for up to 1.5 years. The real-time clock, without calibration, drifts less than 30 s/month at 25 °C; with user calibration, drift is ≤ 6 s/month. Memory includes 128 MB flash and 64 MB internal RAM, sufficient for medium-size control logic with recipe storage and data logging. ## Standards and compliance posture The controller carries CE marking and is certified under CSA C22.2 No 142, CSA C22.2 No 213, UL 508, and IEC 61131-2. Pollution degree 2 per IEC 60664. Rated for IP20 (IEC 61131-2). Shock resistance 15 gn at 11 ms; vibration resistance 1 gn at 8.4…150 Hz on DIN rail (3.5 mm displacement at 5…8.4 Hz). Surge withstand is 0.5 kV differential mode and 1 kV common mode per IEC 61000-4-5. This is a current-production unit (lifecycle stage: current). Sourcing is through the standard Schneider Electric channel; RFQ for confirmed lead time and quantity pricing. ## Mounting and physical placement Local signaling includes one LED per I/O channel for state, plus dedicated status LEDs for CANopen (CAN0 STS), Modbus serial (MBS COM), two application LEDs (APP0, APP1), Ethernet network status (Eth NS), Ethernet activity (Eth LA), module status (RUN/MS), USB host, and battery (BATT). These LEDs match the M258 family layout.","metaTitle":"Schneider TM258LD42DT M258 Logic Controller, 42 I/O, 24VDC","metaDescription":"Modicon M258 logic controller with 42 discrete I/O, 24 V DC, 13.03 W. UL/CSA/IEC certified, current production. Source to order—RFQ for lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"3.3 in (85 mm)","Width":"6.9 in (175 mm)","Height":"3.9 in (99 mm)","Marking":"CE","Category":"US1PC1222532","Standards":"CSA C22.2 No 142 UL 508 IEC 61131-2 CSA C22.2 No 213","Peak current":"100 kA 25 kA 50 kA 1.2 A > 70 s)main supply","Data backed up":"Variables of type retain and retain persistent CR2477M Renata, 1.5 years","Realtime clock":"Without any user calibration clock, clock drift < 30 s/month at 77 °F (25 °C) With user calibration clock, clock drift <= 6 s/month","Input impedance":"6 kOhm fast input 6 kOhm regular input","Surge withstand":"0.5 kV differential mode IEC 61000-4-5 1 kV common mode IEC 61000-4-5","lifecycle_stage":"current","Local signalling":"1 LED per channel I/O state 1 LED CAN0 STS 1 LED MBS COM 1 LED green/red APP0 1 LED green/red APP1 1 LED green/red Eth NS (Ethernet network status) 1 LED green/red Eth ST (Ethernet status) 1 LED green/red RUN/MS (module status) 1 LED green/red USB host 1 LED green/yellow Eth LA (Ethernet activity) 1 LED red BATT (battery status)","Mounting Support":"Symmetrical DIN rail","Pollution degree":"2 IEC 60664","Range of Product":"Modicon M258","Shock resistance":"15 gn 11 ms","Storage altitude":"0...9842.5 ft (0...3000 m)","Relative humidity":"5...95 % without condensation","Line Rated Current":"0.04 A embedded expert modules power 0.25 A main supply 10 A I/O power segment","Memory description":"Flash 128 MB Internal RAM 64 MB","Operating altitude":"0...6561.68 ft (0...2000 m)","Discrete I/O number":"42","Discrete input logic":"Sink fast input Sink regular input Source input","Vibration resistance":"1 gn 8.4...150 Hz DIN rail 3.5 mm 5...8.4 Hz DIN rail","Anti bounce filtering":"2 µs...4 ms configurable fast input/regular input and fast output","Counting input number":"8 200 kHz","Discrete input number":"10 fast input 12 input 4 regular input","Discrete output logic":"Source","Nbr. of units in pkg.":"1","Output voltage limits":"19.2...28.8 V","Supply voltage limits":"20.4...28.8 V","Discrete input current":"4 mA fast input 4 mA regular input","Discrete input voltage":"24 V","Discrete output number":"12 output 4 fast output","Power Consumption in W":"13.03 W","Discrete output current":"4 mA fast output","Discrete output voltage":"24 V DC","IP degree of protection":"IP20IEC 61131-2","Product or Component Type":"Logic controller","[Us] rated supply voltage":"24 V DC embedded expert modules power 24 V DC I/O power segment 24 V DC main supply","Integrated connection type":"1 isolated serial link female RJ45 Modbus master/slave RTU/ASCII or character mode ASCII RS232/RS485 300...115200 bps 1 isolated serial link female RJ45 Ethernet Modbus TCP/IP slave 10BASE-T/100BASE-TX 1 isolated serial link mini B USB 480 Mbit/s 1 isolated serial link USB type A 480 Mbit/s","Voltage state 0 guaranteed":"<= 5 V regular input","Voltage state 1 guaranteed":">= 15 V fast input >= 15 V fast output >= 15 V regular input","Configurable filtering time":"0 ms fast input/regular input and fast output 1.5 ms fast input/regular input and fast output 12 ms fast input/regular input and fast output 4 ms fast input/regular input and fast output","Discrete input voltage type":"DC","Resistance to fast transients":"1 kV IEC 61000-4-4 I/O) 1 kV IEC 61000-4-4 shielded cable) 2 kV IEC 61000-4-4 power lines)","Disturbance radiated/conducted":"CISPR 11","Ambient Air Temperature for Storage":"-13...158 °F (-25...70 °C)","Resistance to electromagnetic fields":"0.9 V/m (1 V/m) 2...2.7 GHz IEC 61000-4-3 9.1 V/m (10 V/m) 80...2000 MHz IEC 61000-4-3","Ambient air temperature for operation":"32...131 °F (0...55 °C) without derating horizontal installation) 32...140 °F (0...60 °C) with derating factor horizontal installation) 32...122 °F (0...50 °C) vertical installation)","Resistance to electrostatic discharge":"4 kV on contact IEC 61000-4-2 8 kV in air IEC 61000-4-2","Maximum cable distance between devices":"<98.4 ft (30 m) regular input","Isolation between channels and internal logic":"500 Vrms AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$789.94 – $1,435.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/210d092eb27f9ade3cd559b50b08f23e.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM258LD42DT/alternatives.json"},"ai":{"faq":[{"question":"What certifications does the TM258LD42DT hold?","answer":"CE marked, UL 508, CSA C22.2 No 142, CSA C22.2 No 213, and IEC 61131-2. Pollution degree 2 per IEC 60664."},{"question":"What is the real-time clock accuracy?","answer":"Without user calibration, drift is less than 30 s/month at 25 °C. With calibration, drift is ≤ 6 s/month."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM258LD42DT","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/TM258LD42DT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}