Specifications 1. General Information Parameter Specification Product Family Modicon M221 Logic Controller Catalog Number TWDLMDA40DTK Description 24 VDC Compact PLC with Transistor Outputs Power Supply 24 VDC Output Type Sinking Transistor (NPN) Programming Software EcoStruxure Machine Expert - Basic Programming Languages Ladder Diagram (LD), Function Block Diagram (FBD) 2. Integrated I/O Points I/O Type Quantity Specification Digital Inputs 24 points • Type: Sinking (NPN compatible) • Voltage: 24 VDC (15-30 VDC range) • Logic "1": 15-30 VDC • Logic "0": 0-5 VDC • Input Current: 3.5 mA typical • Fast Inputs: 4 fast counters (20 kHz) • Hardware Interrupts: 4 Digital Outputs 16 points • Type: Sinking transistor (NPN) • Output Voltage: 24 VDC • Output Current: 0.5 A per point • Total Current: 4 A max per common group • Short-circuit protection: Yes • High-speed outputs: 2 × 100 kHz, 2 × 20 kHz 3. CPU & Memory Specifications Parameter Specification Program Memory 64 KB Data Memory 32 KB Retentive Memory 2 KB (battery-backed) Execution Speed 0.2 µs per Boolean instruction Real-Time Clock (RTC) Integrated with battery backup (10 days typical) Battery CR2032 lithium coin cell 4. Communication Ports Port Type Function/Protocol Port 1 Ethernet RJ45 (10/100 Mbps) • Modbus TCP Server/Client • SNMP • FTP Server/Client • HTTP Web Server • Programming port Port 2 Serial RS-485 • Modbus RTU Master/Slave • ASCII protocol • Up to 115.2 kbps Port 3 Serial RS-232 • Modbus ASCII/RTU • Modem support • Programming (alternative) 5. Electrical Specifications Parameter Specification Supply Voltage 24 VDC (20.4-28.8 VDC) Power Consumption • CPU + I/O: 25 W max • 24 VDC input current: 1.2 A typical Inrush Current 30 A max for 3 ms Isolation • 1500 VAC between power and internal logic • 500 VAC between I/O and logic Output Protection Electronic short-circuit protection, thermal shutdown 6. High-Speed Counter Specifications Counter Channels Maximum Frequency Mode HSC 0-1 2 100 kHz Single phase, Quadrature x1/x4 HSC 2-3 2 20 kHz Single phase, Quadrature x1/x4 Functionality • Up/Down counting • Frequency measurement • Position capture (touch probe) 7. Pulse Train Output (PTO/PWM) Specifications Parameter Specification PTO Channels 2 (Q0.0, Q0.1) Maximum Frequency 100 kHz PWM Channels 2 PWM Resolution 0.1% duty cycle Motion Profiles • Trapezoidal • S-curve Positioning Modes Relative, Absolute, Manual 8. Physical Specifications Parameter Specification Dimensions (W × H × D) 130 × 100 × 81 mm Weight 0.75 kg Mounting 35 mm DIN rail Enclosure Material Polycarbonate, UL94 V-0 Connectors • Removable screw terminals • Ethernet RJ45 • Serial D-Sub (RS-232) 9. Environmental Specifications Parameter Specification Operating Temperature 0°C to +55°C Storage Temperature -25°C to +70°C Relative Humidity 10% to 95% (non-condensing) Altitude ≤ 2000 m Protection Rating IP20 (installed in enclosure) Pollution Degree 2 Vibration 3.5 mm @ 5-8.4 Hz, 9.8 m/s² @ 8.4-150 Hz Shock 147 m/s² @ 11 ms 10. Certifications & Standards Standard Description UL 508 Industrial control equipment CSA C22.2 No. 142 Process control equipment IEC 61131-2 Programmable controllers EN 61326-1 EMC requirements CE European conformity UKCA UK conformity RCM Australian conformity RoHS Restriction of hazardous substances REACH Chemical compliance 11. Model Number Breakdown Code Segment Meaning TWD Modicon M221 series LMDA Logic Controller - Modicon M221 40 40 I/O total (24 inputs / 16 outputs) DT 24 VDC power supply, Transistor outputs K Sinking transistor (NPN) 12. Expansion Capabilities Parameter Specification Expansion Modules Up to 7 TM2 expansion modules Expansion Types • Digital I/O • Analog I/O • Temperature • Communication Maximum I/O 248 digital + 49 analog