Controller for HVAC and Pumping Applications
The TM171ODM22R: Supply voltage is 12-24 V AC/DC ±10 %, pulling 4 W. The Modbus RS485 screw-terminal link (1 port) connects to a BMS or supervisory layer.
Flush-mount housing rated IP20. Front-panel cutout dimensions: depth 3.0 in (76 mm), width 2.9 in (74 mm), height 1.3 in (32 mm). Screw terminals for all I/O and power. Relay outputs are volt-free (SPST with common or independent commons). Digital input logic can be sink or source. Analog inputs accept voltage (0-1 V, 0-5 V, 0-10 V) or current (0-20 mA, 4-20 mA). NTC probe range -50…100 °C.
Sourcing Notes
Active lifecycle means this part fits a BOM freeze without immediate replacement planning. No exact pin-compatible alternative identified within the Modicon M171/M172 range for this specific I/O mix.
