The Schneider Electric TM172PBG07R is a Modicon M172 programmable logic controller built for HVAC and building automation. Its I/O set—2 digital inputs, 2 analog inputs configurable for NTC, PTC, Pt1000, 0–10 V, 0–20 mA, and 3 relay outputs (one SPDT, two SPST with a shared common)—covers the sensor and actuator mix in an air-handling unit or zone controller without needing signal conditioners.
Mounts on DIN rail or panel with accessory; IP20 enclosure and pollution degree 2 keep it clean for cabinet install. Communication ports: one CAN over screw terminals, two RS485 (Modbus or BACnet MS/TP), one Ethernet (Modbus TCP and BACnet IP with webserver), plus USB host and device. The relay outputs switch 3 A each; the two SPST outputs share a common, so plan your return wiring accordingly.
