Specifications General Product Type: Logic controller — Modicon M171 optimized with display and Modbus capability Model: TM171ODM22R Series: Modicon M171/M172 family Integrated I/O: 22 total I/O points Display: Integrated display with navigation buttons for local configuration/monitoring Communication: Modbus SL (for programming and remote data access) Power Supply Voltage: • 24 V DC • 12 VAC to 24 VAC I/O Configuration Inputs: Multi‑type I/O including: • Digital inputs (e.g., discrete on/off) • Configurable analog/thermistor (U/I/T) inputs (configurable) Outputs: • Digital outputs (relay / transistor types depending on configuration) • Configurable analog/PWM/PPM outputs (Exact distribution of digital vs analog I/O depends on configuration and factory options; the total is 22 points.) Communication & Expansion Modbus SL over RS‑485: Standard for remote programming and data exchange LAN expansion bus: For optional display or I/O expansion accessories Programming Software: EcoStruxure Machine Expert – HVAC (or general EcoStruxure Machine Expert tools) Physical & Environmental Mounting: 35 mm DIN rail Protection Rating: Typical industrial IP20 enclosure (internal) Operating Temperature: Approx. −20 °C to +55 °C Size: ~74 mm (W) × ~32 mm (H) × ~76 mm (D) Weight: ~0.164 kg Certifications: CE, CSA, cURus, EAC; meets EN/IEC 60730 standards