TM221C16U

Name: TM221C16U
Brand: Schneider
SKU: TM221C16U

The TM221C16U is a robust logic controller designed for industrial automation, featuring 16 I/Os and high-performance capabilities.

Product ModelTM221C16U

Product ID34354

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh-performance transistor output cycles (20000000 cycles)
2
FeatureEfficient output power (<12 W)
3
FeatureAbundant RAM for complex applications (256 kB)
4
FeatureVersatile I/O configurations with 16 I/Os
5
FeatureEasy integration with Modicon TM3 expansion modules

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range of Product

Modicon M221

Product or Component Type

Logic controller

[Us] rated supply voltage

24 V DC

Discrete input number

9, discrete input 4 fast input IEC 61131-2 Type 1

Analogue input number

2 0...10 V

Discrete output type

Transistor

Discrete output number

7 transistor 2 fast output

Discrete output voltage

24 V DC

Discrete output current

0.5 A

Discrete I/O number

Maximum number of I/O expansion module

4 (local I/O-Architecture)11 (remote I/O-Architecture)

Supply voltage limits

20.4...28.8 V

Inrush current

35 A

Maximum power consumption in W

10 W 24 V with max number of I/O expansion module)3.9 W 24 V without I/O expansion module)

Power supply output current

0.325 A 5 V expansion bus0.15 A 24 V expansion bus

Discrete input logic

Sink or source (positive/negative)

Discrete input voltage

24 V

Discrete input voltage type

Analogue input resolution

10 bits

LSB value

10 mV

Conversion time

1 ms per channel + 1 controller cycle time analog input

Permitted overload on inputs

+/- 30 V DC 5 min maximum)analog input+/- 13 V DC permanent)analog input

Voltage state 1 guaranteed

>= 15 V input

Voltage state 0 guaranteed

<= 5 V input

Discrete input current

7 mA discrete input5 mA fast input

Input impedance

3.4 kOhm discrete input100 kOhm analog input4.9 kOhm fast input

Response time

35 Âµs turn-off, I2...I5 input5 Âµs turn-on, I0, I1, I6, I7 fast input35 Âµs turn-on, other terminals input5 Âµs turn-off, I0, I1, I6, I7 fast input100 Âµs turn-off, other terminals input5 Âµs turn-on, turn-off, Q0...Q1 output50 Âµs turn-on, turn-off, Q2...Q3 output300 Âµs turn-on, turn-off, other terminals output

Configurable filtering time

0 ms input3 ms input12 ms input

Discrete output logic

Negative logic (sink)

Maximum current per output common

3.5 A

Output frequency

100 kHz fast output (PWM/PLS mode) Q0...Q15 kHz output Q2...Q30.1 kHz output Q4...Q6

Absolute accuracy error

+/- 1 % of full scale analog input

Maximum leakage current

0.1 mA transistor output

Maximum voltage drop

<1 V

Mechanical durability

20000000 cycles transistor output

Maximum tungsten load

<12 W output and fast output

Protection type

Without protection

Memory capacity

256 kB user application and data RAM 10000 instructions256 kB internal variables RAM

Data backed up

256 kB built-in flash memory backup of application and data

Data storage equipment

2 GB SD card optional)

Battery type

BR2032 or CR2032X lithium non-rechargeable

Backup time

1 year 77 °F (25 °C) by interruption of power supply)

Execution time for 1 KInstruction

0.3 ms event and periodic task

Execution time per instruction

0.2 Âµs Boolean

Exct time for event task

60 Âµs response time

Maximum size of object areas

255 %C counters255 %TM timers512 %KW constant words8000 %MW memory words512 %M memory bits

Realtime clock

With

Clock drift

<= 30 s/month 77 °F (25 °C)

Regulation loop

Adjustable PID regulator up to 14 simultaneous loops

Positioning functions

PTO 2 pulse/direction 100 kHz)PTO 1 CW/CCW 100 kHz)

Function Available

PLSFrequency generatorPWM

Counting input number

4 fast input (HSC mode) 100 kHz 32 bits

counter function

Pulse/directionSingle phaseA/B

Integrated connection type

USB port mini B USB 2.0Non isolated serial link serial 1 RJ45 RS485Non isolated serial link serial 2 RJ45 RS232/RS485

Supply

Serial)serial link supply 5 V, <200 mA

Transmission rate

1.2...115.2 kbit/s (115.2 kbit/s by default) 49.2 ft (15 m) RS4851.2...115.2 kbit/s (115.2 kbit/s by default) 9.8 ft (3 m) RS232480 Mbit/s USB

Communication port protocol

USB port USB - SoMachine-NetworkNon isolated serial link Modbus master/slave - RTU/ASCII or SoMachine-Network

Local signalling

for PWR 1 LED (green) for RUN 1 LED (green) for module error (ERR) 1 LED (red) for SD card access (SD) 1 LED (green) for BAT 1 LED (red) for SL1 1 LED (green) for SL2 1 LED (green) for I/O state 1 LED per channel (green)

Electrical connection

removable 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 inputsMini B USB 2.0 connector for a programming terminal

Maximum cable distance between devices

Shielded cable <32.8 ft (10 m) fast inputUnshielded cable <98.4 ft (30 m) outputUnshielded cable <98.4 ft (30 m) digital inputUnshielded cable <3.3 ft (1 m) analog inputShielded cable <9.8 ft (3 m) fast output

Insulation

Between input and internal logic 500 V ACBetween fast input and internal logic 500 V ACNon-insulated between inputsBetween output and internal logic 500 V ACNon-insulated between analogue input and internal logicNon-insulated between analogue inputs

Marking

Mounting support

Top hat type TH35-15 rail IEC 60715Top hat type TH35-7.5 rail IEC 60715 plate or panel with fixing kit

Height

3.5 in (90 mm)

Depth

2.8 in (70 mm)

Width

3.7 in (95 mm)

Net Weight

1.230 lb(US) (0.558 kg)

Standards

IEC 61131-2UL 508CAN/CSA C22.2 No. 213IACS E10ANSI/ISA 12-12-01

Product Certifications

DNV-GLRCMABScULusLREACCEUKCAcULus HazLoc

Environmental characteristic

Ordinary and hazardous location

Resistance to electrostatic discharge

8 kV in air IEC 61000-4-24 kV on contact IEC 61000-4-2

Resistance to electromagnetic fields

9.1 V/m (10 V/m) 80 MHz...1 GHz IEC 61000-4-32.7 V/m (3 V/m) 1.4 GHz...2 GHz IEC 61000-4-30.9 V/m (1 V/m) 2...2.7 GHz IEC 61000-4-3

Resistance to magnetic fields

98.4 A/m (30 A/m) 50/60 Hz IEC 61000-4-8

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)

Surge withstand

2 kV power lines (AC) common mode IEC 61000-4-52 kV relay output common mode IEC 61000-4-51 kV I/O common mode IEC 61000-4-51 kV shielded cable common mode IEC 61000-4-50.5 kV power lines (DC) differential mode IEC 61000-4-51 kV power lines (AC) differential mode IEC 61000-4-51 kV relay output differential mode IEC 61000-4-50.5 kV power lines (DC) common mode IEC 61000-4-5

Resistance to conducted disturbances

10 V 0.15...80 MHz IEC 61000-4-63 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)

Electromagnetic emission

Conducted emissions 79 dBÎ¼V/m QP/66 dBÎ¼V/m AV power lines (AC))0.15...0.5 MHz IEC 55011Conducted emissions 73 dBÎ¼V/m QP/60 dBÎ¼V/m AV power lines (AC))0.5...300 MHz IEC 55011Conducted emissions 120...69 dBÂµV/m QP power lines)10...150 kHz IEC 55011Conducted emissions 63 dBÎ¼V/m QP power lines)1.5...30 MHz IEC 55011Radiated emissions 40 dBÎ¼V/m QP class A 10 m)30...230 MHz IEC 55011Conducted emissions 79...63 dBÎ¼V/m QP power lines)150...1500 kHz IEC 55011Radiated emissions 47 dBÎ¼V/m QP class A 10 m)200...1000 MHz IEC 55011

Immunity to microbreaks

10 ms

Ambient air temperature for operation

14...131 °F (-10...55 °C) horizontal installation)14...95 °F (-10...35 °C) vertical installation)

Ambient Air Temperature for Storage

-13...158 °F (-25...70 °C)

Relative humidity

10...95 %, without condensation in operation)10...95 %, without condensation in storage)

IP degree of protection

IP20 with protective cover in place

Pollution degree

<= 2

Operating altitude

0...6561.68 ft (0...2000 m)

Storage altitude

0.0000000000...9842.5 ft (0...3000 m)

Vibration resistance

3.5 mm 5...8.4 Hz symmetrical rail3.5 mm 5...8.4 Hz panel mounting1 gn 8.4...150 Hz symmetrical rail1 gn 8.4...150 Hz panel mounting

Shock resistance

147 m/sÂ² 11 ms