Schneider TM221M16R Logic Controller, Modicon M221 16 I/O Relay

The Schneider Electric TM221M16R is a Modicon M221 series logic controller with 16 I/O and relay outputs, supplied at 24 V DC. It integrates 8 digital inputs, 2 analog inputs at 0...10 V, and 8 normally open relay outputs rated at 2 A for machine and process automation.

Technical specifications:

• Commercial reference: TM221M16R
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Modicon M221
• Product type: Logic controller
• Supply voltage: 24 V DC (20.4...28.8 V)
• Digital inputs: 8, IEC 61131-2 type 1, 24 V DC, sink or source logic
• Analog inputs: 2 at 0...10 V, 10-bit resolution, +/-1% full-scale accuracy
• Digital outputs: 8 relay normally open, 2 A, 5...250 V AC / 5...125 V DC
• Max current per output common point: 7 A
• Max expansion I/O modules: 7 (local architecture) / 14 (remote architecture)
• User application memory: 256 kB RAM, 256 kB built-in flash backup
• Real-time clock: Yes, drift <=30 s/month at 25°C
• High-speed counter inputs: 4 at 100 kHz, 32-bit (HSC mode)
• PID regulation: Up to 14 simultaneous loops
• Communication ports: USB mini B (480 Mbit/s), RS485 serial 1 (RJ45), RS232/RS485 serial 2 (RJ45)
• Protocol: Modbus RTU/ASCII master/slave, SoMachine network
• Relay mechanical endurance: 20,000,000 cycles
• Connection: Removable screw terminal blocks for inputs and outputs
• Isolation: 500 V AC between inputs and internal electronics

Features and benefits:

• Relay outputs accept 5...250 V AC and 5...125 V DC loads for versatile switching without external interface relays.
• Dual serial ports with Modbus master/slave protocol enable direct SCADA and HMI integration.
• Four 32-bit HSC inputs at 100 kHz support pulse/direction, A/B quadrature, and single-phase counting modes.
• Up to 14 simultaneous adjustable PID loops provide closed-loop process control within the controller.
• Built-in flash memory and optional 2 GB SD card ensure application and data backup without external hardware.

Applications:

• Machine automation panels requiring relay switching of AC and DC loads.
• Industrial equipment communicating with SCADA or HMI systems via Modbus RTU/ASCII.
• Process control installations using 0...10 V analog sensors for feedback.
• High-speed counting and positioning applications with encoder or pulse train inputs.

Digital inputs comply with IEC 61131-2 type 1. Part of the Schneider Electric Modicon M221 range.

Also known as: Schneider TM221M16R, Schneider Electric TM221M16R, Modicon M221 PLC, M221 relay output controller.