Maintenance teams planning replacements for ELECTRIC-TM221C40T frequently review Siemens PLC, Magelis HMI Software and Schneider M241 40 Io Transistor Npn to prevent downtime, checking availability and compatibility with existing systems.
Schneider TM221C40T Programmable Logic Controller
The TM221C40T from Schneider Electric is a compact and high-performance PLC (Programmable Logic Controller) designed under the Modicon M221 series.
| Brand | Schneider |
| Product Type | PLC - Programmable Logic Controller |
| Product | TM221C40T |
Schneider TM221C40T Programmable Logic Controller – Technical Specifications
| Specification | Value |
|---|---|
| Maximum leakage current | 0.1 mA for transistor output |
| Discrete output logic | Positive logic (source) |
| Minimum load | - |
| Conversion time | 1 ms per channel + 1 controller cycle time for analogue input analog input |
| Ambient air temperature for storage | -25…70 °C |
| Pollution degree | <= 2 |
| Maximum current per output common | 4 A |
| Configurable filtering time | 0 ms for input3 ms for input12 ms for input |
| Power supply output current | 0.52 A 5 V for expansion bus0.3 A 24 V for expansion bus |
| Reset time | 1 s automatic reset |
| Discrete output voltage | 24 V DC |
| Discrete output type | Transistor |
| Switching frequency | - |
| Output frequency | 100 kHz for fast output (PWM/PLS mode) at Q0...Q15 kHz for output at Q2...Q30.1 kHz for output at Q4...Q15 |
| Backup time | 1 year at 25 °C (by interruption of power supply) |
| Maximum power consumption in VA | - |
| IP degree of protection | IP20 with protective cover in place |
| [Us] rated supply voltage | 24 V DC |
| Transmission rate | 1.2...115.2 kbit/s (115.2 kbit/s by default) for bus length of 15 m for RS4851.2...115.2 kbit/s (115.2 kbit/s by default) for bus length of 3 m for RS232480 Mbit/s for USB |
| Input impedance | 3.4 kOhm for discrete input100 kOhm for analog input4.9 kOhm for fast input |
| Range of product | Modicon M221 |
| Net weight | 0.456 kg |
| Discrete output number | 16 transistor 2 fast output |
| Discrete input current | 7 mA for discrete input5 mA for fast input |
| Supply voltage limits | 20.4…28.8 V |
| Depth | 70 mm |
| Discrete I/O number | 40 |
| Electrical connection | removable screw terminal block for inputs removable screw terminal block for outputs terminal block, 3 terminal(s) for connecting the 24 V DC power supply connector, 4 terminal(s) for analogue inputsMini B USB 2.0 connector for a programming terminal |
The TM221C40T Schneider Modicon M221 Transistor PNP is engineered for precision automation and long-term performance. Operating on a 24 V DC power supply with a safe voltage range of 20.4…28.8 V, it features 16 transistor outputs and 2 fast outputs designed for high-speed control up to 100 kHz in PWM/PLS mode. Each output supports 4 A per output common, ensuring strong drive capability for connected loads. The controller’s positive logic configuration enhances response time and signal accuracy. It includes configurable filtering times (0 ms, 3 ms, or 12 ms) and a conversion time of 1 ms per channel, delivering superior input precision. Communication options such as RS232, RS485, and Mini USB 2.0 enable seamless Modbus master/slave integration with PLC networks and HMI systems. With IP20 protection, a 70 mm compact depth, and 0.456 kg net weight, the TM221C40T Schneider PLC is easy to install even in limited-space panels. Designed to perform at altitudes up to 2000 m and temperatures between -25°C to 70°C, it ensures durability in harsh factory and field conditions. The backup time of one year at 25°C provides added safety during unexpected power interruptions, making this PLC a dependable choice for mission-critical automation systems.
The TM221C40T is widely used in industrial automation for packaging lines, conveyor systems, textile machines, and process automation where fast response and precision are essential. Maintenance engineers value its transistor output design for faster switching and accuracy, while system integrators prefer its Modbus communication compatibility for smooth integration across PLC networks. The Schneider Modicon M221 Transistor PNP also provides simplified programming through EcoStruxure Machine Expert software, enabling users to implement advanced motion and logic control easily. It’s equally useful for automation students learning real-world control systems and I/O communication principles. In all cases, the TM221C40T Schneider Electric PLC delivers consistent performance, low maintenance, and high energy efficiency. As part of the trusted Schneider Modicon M221 Transistor PNP range, this controller is built for fast logic processing, precise output control, and efficient communication in modern automation systems. It is ideal for OEMs, machine builders, and engineers who demand performance, reliability, and easy integration in industrial environments.
To explore full details, refer to the TM221C40T datasheet and TM221C40T manual for wiring, programming, and setup guidance. The Schneider Electric TM221C40T is part of the Modicon M221 series, trusted globally for its robust construction and precise performance. Engineers searching for m221 plc schneider, m221 modicon, modicon 221, schneider tm221c40t, plc tm221c40t, or schneider electric tm221c40t will find this model among the most efficient and reliable PLCs for automation control.
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