{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM221M16T","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM221M16T","canonicalUrl":"https://aoctrl.com/schneider/TM221M16T","factsUrl":"https://aoctrl.com/api/mcp/products/TM221M16T","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Modicon M221 logic controller, order code TM221M16T, 16 discrete I/O, transistor outputs, integrated serial and USB ports, PID and real-time clock.","salesMarkdown":"## Compact machine controller with fast I/O and built-in PID The Schneider TM221M16T is a Modicon M221 logic controller packing 16 discrete I/O in a slim 70 mm wide housing. It brings transistor outputs, two serial ports (RS232/RS485), USB programming, and an integrated PID engine for up to 14 loops — all on a 24 VDC backplane that draws under 200 mA on the serial link supply. The discrete inputs accept sink or source wiring; fast inputs (I0, I1, I6, I7) respond in 5 µs. Transistor outputs Q0 and Q1 respond in 5 µs, and all outputs are short-circuit protected with automatic reset; PWM and pulse train outputs are built-in. The real-time clock is backed by a lithium coin cell that holds time for one year at 25 °C with power off. Clock drift stays under 30 seconds per month at 25 °C. Analog inputs provide 10 mV resolution and convert in 1 ms per channel plus controller cycle time. ## Mounting and environmental tolerance Snaps onto a TH35-15 or TH35-7.5 DIN rail; also panel-mountable with an optional fixing kit. Pollution degree 2 (non-conductive, occasional condensation) suits most control panel environments. Vibration tested to 3.5 mm displacement at 5–8.4 Hz and 1 gn up to 150 Hz on the rail — survives the industrial shake, though I'd still add a rail-end anchor for high-vibration sites. Operating altitude to 2000 m, storage to 3000 m; relative humidity 10–95 % non-condensing. Storage temperature exceeds operating range — that limit matters for shipping, not running. Compliance covers UL 508 (industrial control equipment), IEC 61131-2 (PLC standard), CSA C22.2 No. 213, and ANSI/ISA 12-12-01 (Class I, Division 2 hazardous locations). CE marking also applies. Surge withstand tested at 2 kV common mode on AC power lines and 1 kV on I/O lines per IEC 61000-4-5.","metaTitle":"Schneider TM221M16T Modicon M221 Logic Controller, 16 I/O","metaDescription":"Modicon M221 logic controller with 16 discrete I/O, transistor outputs, RS485/RS232/USB, PID controller. Active production (cite E24), compliant with UL 508 and IEC 61131-2.","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 Between output groups 500 V AC Non-insulated between analogue input and internal logic Non-insulated between analogue inputs Between fast output and internal logic 500 V AC Non-insulated between outputs","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","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":"Single phase Pulse/direction A/B","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 (green) for SL1 1 LED (green) for SL2 1 LED per channel (green) for I/O state","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":"Frequency generator PWM PLS","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":"8 interrupt tasks 1 cyclic auxiliary task 1 configurable freewheeling/cyclic master task","Communication Service":"Modbus master Modbus slave","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 RS485 Non isolated serial link serial 2 RJ45 RS232/RS485","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","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":"8000 %MW memory words 255 %C counters 512 %KW constant words 255 %TM timers 512 %M memory bits","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 W 24 V with max number of I/O expansion module) 3.2 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":"$162.56 – $443.25","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/75d953176c0357a8ffa0ce6ae2920607.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM221M16T/alternatives.json"},"ai":{"faq":[{"question":"What are the physical dimensions of the TM221M16T?","answer":"The controller is 70 mm wide, 70 mm deep, and 90 mm high. It snaps onto a TH35 DIN rail or mounts to a panel with a fixing kit."},{"question":"What compliance certifications does the TM221M16T carry?","answer":"It is marked CE and complies with UL 508, IEC 61131-2, CAN/CSA C22.2 No. 213, IACS, and ANSI/ISA 12-12-01. Surge immunity is rated for 2 kV common mode on AC mains per IEC 61000-4-5."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM221M16T","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/TM221M16T 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}}