Product details

TM221C40T Logic Controller – 40 I/O Transistor PNP

Compact, powerful and field-proven – the Modicon M221 series delivers reliable automation for small to mid-size machines. This 24 V DC controller offers 40 mixed I/O points, embedded analog inputs, and high-speed counting. Ideal for OEMs and system integrators who need performance without complexity.

Key Benefits

Fast execution: 0.3 ms per 1,000 instructions – event & periodic tasks
All-in-one I/O: 24 digital inputs (4 fast), 16 transistor outputs (2 fast), 2 analog inputs
Built-in motion: PTO positioning for 2 axes (100 kHz) and PWM/PLS functions
Expandable: up to 7 additional I/O modules for relay or mixed signals

Technical Specifications

Brand: Schneider Electric
Model: TM221C40T
Series: Modicon M221
Type: Logic controller – transistor PNP output
Rated supply voltage: 24 V DC (20.4…28.8 V limits)
Digital inputs: 24 (4 fast, sink/source)
Digital outputs: 16 transistor (2 fast, 0.5 A each)
Analog inputs: 2 (0…10 V, 10‑bit resolution)
High‑speed counting: 4 channels, 100 kHz, 32‑bit
Positioning: 2 axes PTO (pulse/direction) or 1 axis CW/CCW
Memory: 256 kB user RAM + 256 kB internal variables
Real‑time clock: drift ≤30 s/month at 25 °C
Communication: USB, RS485, RS232 (Modbus RTU/ASCII)
Expansion: up to 7 modules on expansion bus

Detailed Specifications

Measurement range: 0…10 V (analog inputs)
Frequency response: 100 kHz (fast outputs, PWM/PLS)
Linearity: ±1 % of full scale (analog)
Resolution: 10 mV per LSB
Temperature range (operation): –10…55 °C (horizontal), –10…35 °C (vertical)
Storage temperature: –25…70 °C
Environmental tolerance: 10…95 % RH non‑condensing
EMC immunity: 4 kV ESD, 10 V/m radiated, 2 kV surge
Protection: IP20 (with cover), overload & short‑circuit protected

Installation & Mounting

DIN rail mount (TH35‑15 or TH35‑7.5 per IEC 60715)
Panel mounting with optional fixing kit
Removable screw terminal blocks for inputs and outputs
Mini‑B USB 2.0 connector for programming

Commissioning & Maintenance

Quick configuration via SoMachine or EcoStruxure Machine Expert
Automatic reset of overload protection (1 s recovery)
LED indicators for module, run, error, and I/O status
SD card slot (optional) for data logging and firmware update

Compatibility

Works with Modicon M221 expansion modules (relay, analog, etc.)
Modbus RTU master/slave via serial links
USB programming with SoMachine‑Network protocol
Supports up to 7 I/O expansion modules

Certifications & Standards

CE, CSA, cULus, ABS, LR, DNV‑GL, RCM, EAC
IEC 61131‑2, IEC 61010‑2‑201, EN 60664‑1
Marine specification (LR, ABS, DNV, GL) compliant
Green Premium product – RoHS & REACh compliant

Package Contents

TM221C40T logic controller
3‑terminal power connector
4‑terminal analog input connector
Quick start guide (digital version available)

Warranty & Shipping

12‑month manufacturer warranty (defects in material & workmanship)
Same‑day shipping for orders placed before 2 PM (UTC+8)
Delivery via FedEx, UPS, or DHL – tracking provided
Estimated transit time: 12‑24 hours for express zones

Expert Review – Manager’s Insight

“The TM221C40T strikes an ideal balance between cost and capability. Its 100 kHz fast I/O and built‑in motion control make it a natural choice for packaging, labelling, and small conveyor systems. The integrated analog inputs and Modbus serial ports reduce the need for extra modules, saving panel space and engineering time. For OEMs looking for a reliable, easy‑to‑program controller, this model is a proven workhorse.”

Typical Applications

Packaging machinery (fill‑seal, labelling, cartoning)
Material handling – conveyors, sorters, pick‑and‑place
Textile and printing equipment
Small assembly lines and test benches
HVAC and building automation subsystems

Frequently Asked Questions (FAQ)

What is the maximum number of expansion modules?
Up to 7 relay or mixed I/O modules on the expansion bus.
Can I use this controller with a 230 V AC supply?
No – it requires 24 V DC (20.4…28.8 V). Use an external power supply.
Is programming software included?
Software (SoMachine or EcoStruxure) is not bundled. Download it from Schneider Electric’s website.
How do I set up the analog inputs?
Configure the 0…10 V range via the software; resolution is 10 mV.
What is the battery life and backup time?
BR2032 lithium battery lasts 4 years; backup time is 1 year at 25 °C.
Can I use this in a marine environment?
Yes – certified by LR, ABS, DNV‑GL for marine applications.

选购指导 – Selection Guide

Choose TM221C40T if you need 40 I/O points with transistor outputs and analog inputs.
For relay outputs, select the TM221C40R (not shown here).
Need more high‑speed counting? The 4 fast inputs (100 kHz) handle incremental encoders.
For larger systems, add up to 7 expansion modules – mix digital, analog, or temperature inputs.
Consider the optional SD card for data logging and recipe management.

经验性问答 – Practical Q&A

I have a 24 V sensor with PNP output – will it work?
Yes – the inputs are sink/source configurable. Set them to source (positive logic).
How do I wire a 2‑wire analog sensor?
Connect the signal wire to the analog input and the common to 0 V. The input impedance is 100 kΩ.
The controller shows a red ERR LED – what should I check?
Check the power supply voltage, wiring shorts, and the program for any watchdog errors.
Can I replace the battery without losing the program?
Yes – the program is stored in flash memory. Replace battery while power is on to keep the clock running.

For inquiries:
sales@powergearx.com |
+86 180 3000 5825 (WhatsApp)

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