{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM221ME16T","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM221ME16T","canonicalUrl":"https://aoctrl.com/schneider/TM221ME16T","factsUrl":"https://aoctrl.com/api/mcp/products/TM221ME16T","rawCanonicalId":null},"summary":{"shortDescription":"Schneider TM221ME16T Industrial Computer Board.","salesMarkdown":"## Overview The TM221ME16T is a Modicon M221 logic controller from Schneider, packing 16 discrete I/O — 8 inputs (4 fast) and 8 transistor outputs rated at 0.5 A each — into a 71.12 mm square footprint. It runs on 24 V DC and carries 256 kB memory for user application and data, programmable via SoMachine Basic. Compared to the TM221ME32TK, the TM221ME16T halves the I/O count (16 vs 32) and lacks the extra 256 kB data memory of the larger sibling, making it the right fit for smaller standalone machines where 16 points and the base memory suffice. The TM221ME16R variant swaps transistor outputs for relay outputs (2 A max), so choose the T version when driving DC loads like solenoid valves or LED indicators directly without an interposing relay. The TM221ME16T is an active catalogue item; no obsolescence notice is recorded. It carries CE marking and complies with IEC 61131-2, UL 508, CAN/CSA C22.2 No. 213, IACS, and ANSI/ISA 12-12-01, plus California Proposition 65 — documentation for panel certification is available on request. ## Integration notes Mounts on TH35-15 or TH35-7.5 DIN rail per IEC 60715, or on a plate with the fixing kit. The serial link supply is 5 V at under 200 mA — budget that separately if powering an external Modbus device from the port. Shock rated at 147 m/s² for 11 ms; the controller survives moderate machine vibration without additional dampening.","metaTitle":"Schneider TM221ME16T Modicon M221 PLC, 16 I/O, transistor outputs","metaDescription":"Schneider TM221ME16T Modicon M221 logic controller: 16 discrete I/O (8 inputs, 8 transistor outputs at 0.5 A), 24 V supply, shock 147 m/s² 11 ms, IEC 61131-2, UL 508.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"2.8 in (70 mm)","Width":"2.8 in (70 mm)","Height":"3.5 in (90 mm)","Supply":"Serial 1)serial link supply 5 V, <200 mA","Marking":"CE","Category":"US10MSX22533","LSB value":"10 mV","Standards":"IEC 61131-2 UL 508 CAN/CSA C22.2 No. 213 IACS E10 ANSI/ISA 12-12-01","Insulation":"Between input and internal logic 500 V AC Between fast input and internal logic 500 V AC Non-insulated between inputs Between output and internal logic 500 V AC Non-insulated between analogue input and internal logic Non-insulated between analogue inputs","Reset time":"1 s automatic reset","Backup time":"1 year 77 °F (25 °C) by interruption of power supply)","Clock drift":"<= 30 s/month 77 °F (25 °C)","Battery type":"BR2032 or CR2032X lithium non-rechargeable","Port Ethernet":"10BASE-T/100BASE-TX 1 328.08 ft (100 m) copper cable","Response time":"35 µs turn-off, I2...I5 input 5 µs turn-on, I0, I1, I6, I7 fast input 35 µs turn-on, other terminals input 5 µs turn-off, I0, I1, I6, I7 fast input 100 µs turn-off, other terminals input 5 µs turn-on, turn-off, Q0...Q1 output 50 µs turn-on, turn-off, Q2...Q3 output 300 µs turn-on, turn-off, other terminals output","Data backed up":"256 kB built-in flash memory backup of application and data","Inrush current":"35 A","Realtime clock":"With","Conversion time":"1 ms per channel + 1 controller cycle time analog input","Input impedance":"100 kOhm analog input 3.4 kOhm input 4.9 kOhm fast input","Memory capacity":"256 kB user application and data RAM 10000 instructions 256 kB internal variables RAM","Protection type":"Short-circuit and overload protection with automatic reset Short-circuit protection on output Overload and short-circuit protection 1 A","Regulation loop":"Adjustable PID regulator up to 14 simultaneous loops","Surge withstand":"2 kV power lines (AC) common mode IEC 61000-4-5 2 kV relay output common mode IEC 61000-4-5 1 kV I/O common mode IEC 61000-4-5 1 kV shielded cable common mode IEC 61000-4-5 0.5 kV power lines (DC) differential mode IEC 61000-4-5 1 kV power lines (AC) differential mode IEC 61000-4-5 1 kV relay output differential mode IEC 61000-4-5 0.5 kV power lines (DC) common mode IEC 61000-4-5","lifecycle_stage":"current","Counter Function":"Pulse/direction A/B Single phase","Local signalling":"1 LED (green) for PWR 1 LED (green) for RUN 1 LED (red) for module error (ERR) 1 LED (green) for SD card access (SD) 1 LED (red) for BAT 1 LED per channel (green) for I/O state 1 LED (green) for SL Ethernet network activity (green) for ACT Ethernet network link (yellow) for Link (Link Status)","Mounting support":"Top hat type TH35-15 rail IEC 60715 Top hat type TH35-7.5 rail IEC 60715 plate or panel with fixing kit","Pollution degree":"<= 2","Range of Product":"Modicon M221","Shock resistance":"147 m/s² 11 ms","Storage altitude":"0...9842.5 ft (0...3000 m)","Relative humidity":"10...95 %, without condensation in operation) 10...95 %, without condensation in storage)","Transmission rate":"1.2...115.2 kbit/s (115.2 kbit/s by default) 49.2 ft (15 m) RS485 1.2...115.2 kbit/s (115.2 kbit/s by default) 9.8 ft (3 m) RS232 480 Mbit/s USB","Function Available":"PLS Frequency generator PWM","Operating altitude":"0...6561.68 ft (0...2000 m)","Discrete I/O number":"16","Discrete input logic":"Sink or source (positive/negative)","Discrete output type":"Transistor","Maximum voltage drop":"<1 V","Vibration resistance":"3.5 mm 5...8.4 Hz symmetrical rail 3.5 mm 5...8.4 Hz panel mounting 1 gn 8.4...150 Hz symmetrical rail 1 gn 8.4...150 Hz panel mounting","Analogue input number":"2 0...10 V","Application structure":"1 cyclic auxiliary task 1 configurable freewheeling/cyclic master task 8 interrupt tasks","Communication Service":"DHCP client Ethernet/IP adapter Modbus TCP server Modbus TCP slave device Modbus TCP client","Counting input number":"4 fast input (HSC mode) 100 kHz 32 bits","Discrete input number":"8, discrete input 4 fast input IEC 61131-2 Type 1","Discrete output logic":"Positive logic (source)","Electrical connection":"terminal block, 3 for connecting the 24 V DC power supply connector, 4 for analogue inputs Mini B USB 2.0 connector for a programming terminal removable screw terminal block, 10 for inputs removable screw terminal block, 11 for outputs","Maximum tungsten load":"<12 W output and fast output","Mechanical durability":"20000000 cycles transistor output","Nbr. of units in pkg.":"1","Positioning functions":"PTO 2 pulse/direction 100 kHz) PTO 1 CW/CCW 100 kHz)","Supply voltage limits":"20.4...28.8 V","Data storage equipment":"2 GB SD card optional)","Discrete input current":"7 mA discrete input 5 mA fast input","Discrete input voltage":"24 V","Discrete output number":"8 transistor 2 fast output","Absolute accuracy error":"+/- 1 % of full scale analog input","Discrete output current":"0.5 A","Discrete output voltage":"24 V DC","IP degree of protection":"IP20 with protective cover in place","Immunity to microbreaks":"10 ms","Maximum leakage current":"0.1 mA transistor output","Electromagnetic emission":"Conducted emissions 79 dBμV/m QP/66 dBμV/m AV power lines (AC))0.15...0.5 MHz IEC 55011 Conducted emissions 73 dBμV/m QP/60 dBμV/m AV power lines (AC))0.5...300 MHz IEC 55011 Conducted emissions 120...69 dBµV/m QP power lines)10...150 kHz IEC 55011 Conducted emissions 63 dBμV/m QP power lines)1.5...30 MHz IEC 55011 Radiated emissions 40 dBμV/m QP class A 10 m)30...230 MHz IEC 55011 Conducted emissions 79...63 dBμV/m QP power lines)150...1500 kHz IEC 55011 Radiated emissions 47 dBμV/m QP class A 10 m)200...1000 MHz IEC 55011","Exct time for event task":"60 µs response time","Analogue input resolution":"10 bits","Product or Component Type":"Logic controller","[Us] rated supply voltage":"24 V DC","Integrated connection type":"USB port mini B USB 2.0 Non isolated serial link serial 1 RJ45 RS232/RS485 Ethernet RJ45","Voltage state 0 guaranteed":"<= 5 V input","Voltage state 1 guaranteed":">= 15 V input","Communication port protocol":"USB port USB - SoMachine-Network Non isolated serial link Modbus master/slave - RTU/ASCII or SoMachine-Network Ethernet","Configurable filtering time":"0 ms input 3 ms input 12 ms input","Discrete input voltage type":"DC","Power supply output current":"0.52 A 5 V expansion bus 0.49 A 24 V expansion bus","Environmental characteristic":"Ordinary and hazardous location","Maximum size of object areas":"512 %M memory bits 512 %KW constant words 8000 %MW memory words 255 %TM timers 255 %C counters","Permitted overload on inputs":"+/- 30 V DC 5 min maximum)analog input +/- 13 V DC permanent)analog input","Resistance to fast transients":"2 kV IEC 61000-4-4 power lines) 2 kV IEC 61000-4-4 relay output) 1 kV IEC 61000-4-4 I/O) 1 kV IEC 61000-4-4 Ethernet line) 1 kV IEC 61000-4-4 serial link)","Resistance to magnetic fields":"98.4 A/m (30 A/m) 50/60 Hz IEC 61000-4-8","Execution time per instruction":"0.2 µs Boolean","Maximum power consumption in W":"22.9 W 24 V with max number of I/O expansion module) 4 W 24 V without I/O expansion module)","Output Frequency (sync to mains)":"100 kHz fast output (PWM/PLS mode) Q0...Q1 5 kHz output Q2...Q3 0.1 kHz output Q4...Q6","Execution time for 1 KInstruction":"0.3 ms event and periodic task 0.7 ms other instruction","Maximum current per output common":"4 A","Ambient Air Temperature for Storage":"-13...158 °F (-25...70 °C)","Resistance to conducted disturbances":"10 V 0.15...80 MHz IEC 61000-4-6 3 V 0.1...80 MHz Marine specification (LR, ABS, DNV, GL) 10 V spot frequency (2, 3, 4, 6.2, 8.2, 12.6, 16.5, 18.8, 22, 25 MHz) Marine specification (LR, ABS, DNV, GL)","Resistance to electromagnetic fields":"9.1 V/m (10 V/m) 80 MHz...1 GHz IEC 61000-4-3 2.7 V/m (3 V/m) 1.4 GHz...2 GHz IEC 61000-4-3 0.9 V/m (1 V/m) 2...2.7 GHz IEC 61000-4-3","Ambient air temperature for operation":"14...131 °F (-10...55 °C) horizontal installation) 14...95 °F (-10...35 °C) vertical installation)","Resistance to electrostatic discharge":"8 kV in air IEC 61000-4-2 4 kV on contact IEC 61000-4-2","Maximum cable distance between devices":"Shielded cable Unshielded cable Unshielded cable Unshielded cable Shielded cable <9.8 ft (3 m) fast output"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$204.47 – $475.38","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/07582e918e361b0be1c59bb68a755c60.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM221ME16T/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM221ME16T","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/TM221ME16T 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}}