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Schneider Electric TM221C40U

Schneider TM221C40U Modicon M221 Logic Controller, 40 I/O

MPNTM221C40U
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Schneider Electric Modicon M221 logic controller, TM221C40U, 40 discrete I/O, transistor output, 2 analog inputs, 70 x 160 x 90 mm.

$346.00 – $559.04Ref. price · indicative, final on quote
Schneider Electric TM221C40U datasheet (PDF)
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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

TM221C40U key specifications
ParameterValue
Battery typeBR2032 or CR2032X lithium non-rechargeable
Protection typeWithout protection
Range of productModicon M221
Discrete output typeTransistor
Product or component typeLogic controller
Integrated connection typeUSB port mini B USB 2.0 Non isolated serial link serial 1 RJ45 RS485 Non isolated serial link serial 2 RJ45 RS232/RS485
Discrete input voltage typeDC
Surge withstand2 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
Maximum voltage drop<1 V
Supply voltage limits20.4...28.8 V
Discrete input voltage24 V
Discrete output voltage24 V DC

All specifications

TM221C40U additional specifications
ParameterValue
Supply voltage24 V DC
Voltage state 0 guaranteed<= 5 V input
Voltage state 1 guaranteed>= 15 V input
Inrush current35 A
Discrete input current7 mA discrete input 5 mA fast input
Discrete output current0.5 A
Maximum leakage current0.1 mA transistor output
Power supply output current0.52 A 5 V expansion bus 0.3 A 24 V expansion bus
Maximum current per output common4 A
Maximum power consumption in4.1 W 24 V without I/O expansion module) 16 W 24 V with max number of I/O expansion module)
Output frequency (sync to mains)0.1 kHz output Q4...Q15 100 kHz fast output (PWM/PLS mode) Q0...Q3
IP degree of protectionIP20 with protective cover in place
Communication port protocolUSB port USB - SoMachine-Network Non isolated serial link Modbus master/slave - RTU/ASCII or SoMachine-Network
Mounting supportTop hat type TH35-15 rail IEC 60715 Top hat type TH35-7.5 rail IEC 60715 plate or panel with fixing kit
Electrical connectionremovable screw terminal block for inputs removable screw terminal block for outputs 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
Maximum cable distance between devicesShielded cable Unshielded cable Unshielded cable Unshielded cable Shielded cable <9.8 ft (3 m) fast output
Response time35 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 300 µs turn-on, turn-off, other terminals output 5 µs turn-on, turn-off, Q0...Q3 output
Pollution degree<= 2
Shock resistance147 m/s² 11 ms
Storage altitude0...9842.5 ft (0...3000 m)
Relative humidity10...95 %, without condensation in operation) 10...95 %, without condensation in storage)
Operating altitude0...6561.68 ft (0...2000 m)
Vibration resistance3.5 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
Depth2.8 in (70 mm)
Width6.3 in (160 mm)
Height3.5 in (90 mm)
Mechanical durability20000000 cycles transistor output
StandardsIEC 61131-2 UL 508 CAN/CSA C22.2 No. 213 IACS E10 ANSI/ISA 12-12-01
SupplySerial)serial link supply 5 V, <200 mA
MarkingCE
CategoryUS10MSX22533
LSB value10 mV
InsulationBetween 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
Backup time1 year 77 °F (25 °C) by interruption of power supply)
Clock drift<= 30 s/month 77 °F (25 °C)
Data backed up256 kB built-in flash memory backup of application and data
Realtime clockWith
Conversion time1 ms per channel + 1 controller cycle time analog input
Input impedance3.4 kOhm discrete input 100 kOhm analog input 4.9 kOhm fast input
Memory capacity256 kB user application and data RAM 10000 instructions 256 kB internal variables RAM
Regulation loopAdjustable PID regulator up to 14 simultaneous loops
Counter functionPulse/direction Single phase A/B
Local signalling1 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
Transmission rate1.2...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 availablePLS PWM Frequency generator
Discrete i (O number)40
Discrete input logicSink or source (positive/negative)
Analogue input number2 0...10 V
Counting input number4 fast input (HSC mode) 100 kHz 32 bits
Discrete input number24, discrete input 4 fast input IEC 61131-2 Type 1
Discrete output logicNegative logic (sink)
Maximum tungsten load<12 W output and fast output
Positioning functionsPTO 4 pulse/direction 100 kHz) PTO 2 CW/CCW 100 kHz)
Data storage equipment2 GB SD card optional)
Discrete output number16 transistor 4 fast output
Absolute accuracy error+/- 1 % of full scale analog input
Immunity to microbreaks10 ms
Electromagnetic emissionConducted 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 task60 µs response time
Analogue input resolution10 bits
Configurable filtering time0 ms input 3 ms input 12 ms input
Environmental characteristicOrdinary and hazardous location
Maximum size of object areas8000 %MW memory words 512 %KW constant words 512 %M memory bits 255 %C counters 255 %TM timers
Permitted overload on inputs+/- 30 V DC 5 min maximum)analog input +/- 13 V DC permanent)analog input
Resistance to fast transients2 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 fields98.4 A/m (30 A/m) 50/60 Hz IEC 61000-4-8
Execution time per instruction0.2 µs Boolean
Execution time for 1 KInstruction0.3 ms event and periodic task
Ambient air temperature for storage-13...158 °F (-25...70 °C)
Resistance to conducted disturbances10 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 fields9.1 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 operation14...131 °F (-10...55 °C) horizontal installation) 14...95 °F (-10...35 °C) vertical installation)
Resistance to electrostatic discharge8 kV in air IEC 61000-4-2 4 kV on contact IEC 61000-4-2

Product details

What this controller brings to the panel

The Schneider TM221C40U is a Modicon M221 logic controller with transistor outputs and two analog inputs. It is a current-production PLC with 40 I/O points. Transistor outputs switch at 5 µs on/off on the fast channels (Q0–Q3), making the controller suitable for high-speed counter or PWM applications without external output modules. The two analog inputs on 0…10 V accept standard sensors or transmitters; conversion takes 1 ms per channel plus one scan cycle, which keeps loop update tight for simple PID regulation.

Depth of 70 mm fits slim enclosures; the 160 mm width takes up one standard DIN-rail slot of that length. The controller mounts directly on TH35-7.5 or TH35-15 rail, or on a plate with the optional fixing kit. Serial-link supply draws under 200 mA at 5 V from the backplane – you can power expansion modules locally without a separate supply if within the M221 power budget. Real-time clock with 30‑second/month drift at 25 °C and a year of battery backup keeps time-stamped events accurate through power losses. Memory: 256 kB RAM for user programme and data, about 10k instructions. A built-in flash stores programme and data, no SD card required to retain logic after power-down. Surge withstand meets IEC 61000-4-5 at 2 kV on AC power lines and 1 kV on I/O, which covers most industrial environments without external surge protection for general-purpose panels.

Compliance and marking

CE marked. Listed under UL 508, CSA C22.2 No. 213, and IEC 61131-2. Also marked IACS and ANSI/ISA 12-12-01 for hazardous location suitability (Class I, Division 2). Pollution degree ≤2.

Frequently asked questions

What are the physical dimensions of the TM221C40U?

Depth 70 mm, width 160 mm, height 90 mm. It mounts on standard TH35 rail.

What compliance documentation does it carry?

CE, UL 508, CSA C22.2 No. 213, IEC 61131-2, IACS, ANSI/ISA 12-12-01. Pollution degree ≤2.

How many analog inputs does it have?

Two analog inputs, 0…10 V. Conversion time 1 ms per channel plus one controller cycle.

What is the output type?

Transistor (solid-state) outputs, with 5 µs switching on the fast channels (Q0–Q3).

MPN
TM221C40U