Controller identity and application fit
The TM173ODM22SH is a Modicon M173 programmable controller from Schneider Electric, purpose-built for HVAC and pumping applications. It operates on a 230 V AC supply and consumes 10 W at 24 V AC, making it suitable for direct line-powered installations in building management or water-handling panels.
I/O complement and signal types
The controller provides 22 total I/O: 6 digital inputs (24 V AC/DC, sink or source logic, 2.5 mA per channel), 5 digital outputs (3 relay SPST at 3 A and 2 solid-state isolated at 0.5 A), 7 analog inputs, and 4 analog outputs. Analog inputs accept NTC/PTC/Pt1000 temperature probes, 0–10 V, 0–5 V, and 4–20 mA signals with configurable resolution and accuracy per the spec table — the 4–20 mA range achieves ±1 % of full scale ±1 digit. Analog outputs include one voltage/current channel (0–10 V or 4–20 mA) and three voltage/PWM channels (0–10 V or PWM 10 Hz–2 kHz), covering both standard signal and variable-speed drive interface needs.
Memory, display, and real-time clock
Onboard memory comprises 1 MB flash and 380 kB RAM, sufficient for medium-complexity logic sequences and data logging in HVAC/pumping duty. An integrated LED display provides local status indication, and the built-in real-time clock maintains timekeeping with a drift ≤30 s/month over the -20…65 °C operating range.
Communication ports and connectivity
Connectivity includes one CAN port (screw terminal), two RS485 ports (Modbus serial link, screw terminal), one USB Type-C, one display port (TTL connector), and one communication module expansion slot.
Standards compliance and environmental ratings
The controller carries UL 60730-1, CSA E60730-1, and EN 60730-1 certifications, plus EMC compliance with 2014/30/EU and Low Voltage Directive 2014/35/EU. Rated IP20 per EN/IEC 60730, pollution degree 2, and operates at -20…65 °C ambient with 5–95 % non-condensing humidity — suitable for indoor panel installation in conditioned or sheltered environments.
Mounting and dimensions
Mounts on DIN rail or panel with accessory; dimensions are 110 mm height × 72 mm width × 60 mm depth, fitting standard cabinet layouts without oversize cutouts.
Lifecycle and sourcing posture
Sourced to order against BOM quantities through independent distribution; availability and current pricing confirmed at RFQ.