Schneider TM221C16R belongs to Modicon M221 compact PLC series, an AC-powered industrial programmable logic controller built for small & medium automated machinery control. This device executes customized logic programs to collect digital signals from on-site sensors, limit switches and buttons, then drive relay outputs to control solenoid valves, contactors, heaters, pumps and actuators. Equipped with 9 digital inputs, 7 relay outputs plus 2 built-in analog voltage inputs, it realizes closed-loop PID regulation, motion counting and multi-device communication linkage. It works as the core control brain for standalone equipment and small assembly lines, supporting program storage, remote data interaction and on-site manual Run/Stop operation, widely applied for stable logic automation in complex factory environments.
7-channel mechanical relay output, maximum load 2A (250V AC /125V DC). Compatible with AC/DC alternating loads including coils, lamps and pumps; mechanical service life reaches 20 million cycles, tolerant of inductive surge current without extra flywheel diode for most ordinary loads.
Integrated Ethernet (Modbus TCP), RS485/RS232 serial port (Modbus RTU/ASCII) and Mini USB programming port. Supports connection with HMI, frequency converters, remote SCADA and upper computers to finish data upload/download and remote debugging.
Boolean instruction execution speed: 0.2μs; 1K cycle task runs in only 0.3ms. Embedded high-speed counting, pulse input, real-time clock and up to 14 independent PID closed-loop loops for temperature, pressure and flow precise adjustment.
Supports expansion with TM3 series I/O modules to expand digital/analog channels; detachable screw terminal blocks allow fast wiring replacement. Optional SD card realizes one-click program copy and backup; internal flash memory stores programs permanently without power loss.
Wide power input 100~240V AC, stable against factory voltage fluctuation. Conforms to CE, RoHS industrial EMC standards; works normally under -10℃~+55℃ with strong resistance to electromagnetic interference from motors and welding equipment.
Programmed via SoMachine Basic software; supports IEC61131 standard languages (Ladder Diagram, Function Block). Comes with ready-made function blocks for pump control, conveyor logic, greatly shortening development cycle.
| Item | Detailed Specification |
|---|---|
| Model | TM221C16R (Modicon M221 Series) |
| Power Supply | 100~240 V AC, 50/60Hz |
| Digital I/O | 9 DI (24V DC sink/source); 7 NO relay DO |
| Analog Input | 2 channels, 0~10V DC, 10-bit resolution |
| Relay Output Rating | Max 2A per point; 5~250V AC /5~125V DC |
| High-speed Input | 4 fast counting terminals, response as low as 5μs |
| Program Capacity | 10,000 steps, 256KB flash memory |
| Clock | Built-in RTC, monthly drift ≤30s, BR2032 battery backup (4-year lifespan) |
| Communication | Ethernet, RS485/232, Mini USB; Modbus TCP/RTU |
| Mounting | Standard 35mm DIN rail mounting |
| Dimension | 90mm (H) × 95mm (W) ×70mm (D) |
| Net Weight | 290g |
| Operating Temp | -10 ℃ ~ +55 ℃ |
| Certifications | CE, RoHS, Green Premium |
| Storage Option | External SD card (max 2GB) supported |
Installed inside electrical control cabinets via DIN rail. Digital terminals connect proximity switches, photoelectric sensors and emergency stop buttons; relay terminals drive contactors and solenoid valves. Ethernet links touch screen and workshop central control system for production data monitoring.
All goods are original Schneider genuine, packed with independent electrostatic anti-static cartons, with unique serial number traceable. Stored in constant-temperature dust-proof electronic warehouse with moisture-proof packaging. Complete accessories include terminal screws, operation manual and certification documents; bulk inventory supports sample order and mass delivery, with official 12-month global warranty.
Schneider TM221C16R Modicon M221 PLC 16 Points Relay Output AC Powered Industrial Automation Programmable Logic Controller