Series & Model: Modicon M171/M172/M173 logic controller, TM172PDG42S variant with integrated performance display
Total I/O Count: 42 I/O channels: 12 digital inputs, 12 digital outputs, 12 analog inputs, 6 analog outputs
Digital Inputs/Outputs:
- Digital Inputs operate at 24 V AC/DC (2.5 mA sink/source) across 12 channels
- Outputs include 2 SPDT relays, 3 SPST relays, plus 2 solid-state relays (SSR) with independent common
Analog I/O:
- 12 analog inputs (configurable pairs), supports voltage, current, thermocouple, RTD, and frequency inputs
- 6 analog outputs: 4 fixed voltage (0–10 V) and 2 capable of voltage/current or PWM up to 2 kHz
Built-in Display: 128×64 pixel backlit LCD with keypad for local control and diagnostics
Communication Ports:
- Ethernet port for Modbus TCP and BACnet IP
- 2 x RS‑485 for Modbus RTU/BACnet MS/TP
- CAN bus for expansion, plus USB-A host and USB-mini B device
Power & Performance:
- Power supply: 24 V AC/DC (20–38 V DC)
- Scan speed: ~0.3 ms per 1 K binary instruction; includes a real-time clock
Certifications & Environmental Specs:
- Rated IP20, operates from –20 °C to +55 °C; complies with IEC 60730, CE, CSA, cURus, EAC, RoHS
Form Factor: DIN-rail or panel mounting; housing ~144 × 110 × 60 mm, weight ~0.385 kg

Schneider Electric – TM172PDG42S – Modicon M172 Performance Logic Controller