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Schneider Electric TM221M16RG

Schneider TM221M16RG Modicon M221 Logic Controller, 16 I/O

MPNTM221M16RG
Active

Schneider Electric Modicon M221 logic controller, TM221M16RG, 16 discrete I/O, relay outputs, analog input, PID up to 14 loops, real-time clock, RS232/RS485/USB, 2.8 x 2.8 x 3.5 in (70 x 70 x 90 mm).

$177.80 – $422.68Ref. price · indicative, final on quote
Schneider Electric TM221M16RG datasheet (PDF)
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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

TM221M16RG key specifications
ParameterValue
Battery typeBR2032 or CR2032X lithium non-rechargeable
Protection typeWithout protection 5 A
Range of productModicon M221
Discrete output typeRelay normally open
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
Output voltage limits125 V DC 277 V AC
Supply voltage limits20.4...28.8 V
Discrete input voltage24 V
Discrete output voltage5...125 V DC 5...250 V AC

All specifications

TM221M16RG 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 current2 A
Power supply output current0.52 A 5 V expansion bus 0.46 A 24 V expansion bus
Maximum current per output common7 A
Maximum power consumption in22.5 W 24 V with max number of I/O expansion module) 3.6 W 24 V without I/O expansion module)
Switching frequency20 switching operations/minute with maximum load
IP degree of protectionIP20 with protective cover in place
Communication serviceModbus slave Modbus master
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 connectionterminal 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 spring terminal block, 10 for inputs removable spring terminal block, 11 for outputs
Maximum cable distance between devicesShielded cable Unshielded cable Unshielded cable Unshielded cable <3.3 ft (1 m) analog input
Response time35 µs turn-off, I2...I5 input 10 ms turn-on output 10 ms turn-off output 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
Pollution degree<= 2
Shock resistance98 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)
Width2.8 in (70 mm)
Height3.5 in (90 mm)
Electrical durability100000 cycles AC-12, 120 V, 240 VA, resistive 100000 cycles AC-12, 240 V, 480 VA, resistive 300000 cycles AC-12, 120 V, 80 VA, resistive 300000 cycles AC-12, 240 V, 160 VA, resistive 100000 cycles AC-15, cos phi = 0.35, 120 V, 60 VA, inductive 100000 cycles AC-15, cos phi = 0.35, 240 V, 120 VA, inductive 300000 cycles AC-15, cos phi = 0.35, 120 V, 18 VA, inductive 300000 cycles AC-15, cos phi = 0.35, 240 V, 36 VA, inductive 100000 cycles AC-14, cos phi = 0.7, 120 V, 120 VA, inductive 100000 cycles AC-14, cos phi = 0.7, 240 V, 240 VA, inductive 300000 cycles AC-14, cos phi = 0.7, 120 V, 36 VA, inductive 300000 cycles AC-14, cos phi = 0.7, 240 V, 72 VA, inductive 100000 cycles DC-12, 24 V, 48 W, resistive 300000 cycles DC-12, 24 V, 16 W, resistive 100000 cycles DC-13, 24 V, 24 W, inductive (L/R = 7 ms) 300000 cycles DC-13, 24 V, 7.2 W, inductive (L/R = 7 ms)
Mechanical durability20000000 cycles relay output
StandardsIEC 61131-2 UL 508 CAN/CSA C22.2 No. 213 IACS E10 ANSI/ISA 12-12-01
SupplySerial 1)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 Between output groups 500 V AC Non-insulated between analogue input and internal logic Non-insulated between analogue inputs
Reset time1 s
Backup time1 year 77 °F (25 °C) by interruption of power supply)
Clock drift<= 30 s/month 77 °F (25 °C)
Minimum load1 mA 5 V DC relay output
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 impedance100 kOhm analog input 3.4 kOhm 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 functionA/B Pulse/direction Single phase
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
Discrete i (O number)16
Discrete input logicSink or source (positive/negative)
Analogue input number2 0...10 V
Application structure8 interrupt tasks 1 cyclic auxiliary task 1 configurable freewheeling/cyclic master task
Counting input number4 fast input (HSC mode) 100 kHz 32 bits
Discrete input number8, discrete input IEC 61131-2 Type 1
Data storage equipment2 GB SD card optional)
Discrete output number8 relay
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 255 %TM timers 255 %C counters 512 %KW constant words 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 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 0.7 ms other instruction
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

The TM221M16RG is a Modicon M221 logic controller from Schneider Electric with 16 discrete I/O. The output form is relay normally-open; eight inputs accept sink or source logic. An analog input is present with a conversion time of 1 ms per channel plus one controller cycle. The adjustable PID regulator handles up to 14 simultaneous loops. A real-time clock is fitted, backed by a BR2032 or CR2032X lithium battery providing at least one year of backup at 25 °C without power. Clock drift is specified at ≤30 seconds per month at that temperature.

Fast inputs I0, I1, I6, I7 turn on and off in 5 µs. That suits single-phase counter, pulse/direction, or A/B encoder functions. Remaining inputs respond within 100 µs turn-off, 35 µs turn-on. Output response is 10 ms on and off under relay switching. Serial communication runs on RS232 (3 m max) or RS485 (15 m max), both defaulting to 115.2 kbps. USB at 480 Mbps provides fast program uploads through the Mini-B port. The controller mounts on a TH35-15 or TH35-7.5 DIN rail, or on a plate with the fixing kit.

Compliance documentation covers CE marking, IEC 61131-2, UL 508, CAN/CSA C22.2 No. 213, IACS, and ANSI/ISA 12-12-01. Pollution degree is ≤2.

The case measures 2.8 in (70 mm) wide, 2.8 in (70 mm) deep, and 3.5 in (90 mm) high. The serial link supply draws under 200 mA at 5 V from the bus, and input impedance is 3.4 kOhm for standard inputs, 4.9 kOhm for fast inputs. Vibration resistance: 3.5 mm at 5–8.4 Hz, then 1 gn up to 150 Hz on panel or rail. Shock withstands 98 m/s² for 11 ms. Relative humidity up to 95% non-condensing.

Frequently asked questions

What are the key dimensions of TM221M16RG?

Width and depth are both 2.8 in (70 mm), height is 3.5 in (90 mm). The controller mounts on a TH35-15 or TH35-7.5 DIN rail.

What compliance certifications does TM221M16RG carry?

It carries CE marking and meets IEC 61131-2, UL 508, CAN/CSA C22.2 No. 213, IACS, and ANSI/ISA 12-12-01.

MPN
TM221M16RG