The Schneider Electric TM3AQ2G is a 2-channel, high-speed, analog input module designed for the Modicon TM3 modular I/O system (part of the MachineStruxure™ solution). This module serves as an interface between analog sensors (such as thermocouples or RTDs) and the TM3 bus, allowing programmable logic controllers (PLCs) like the Modicon M221, M241, or M251 to acquire precise temperature or other process data.
Parameter Specification
Product Range Modicon TM3 (Modular I/O System)
Module Type Analog Input Module
Reference TM3AQ2G
Number of Channels 2
Input Type Configurable per channel: Thermocouple (TC) or Resistance Temperature Detector (RTD)
Thermocouple Types J, K, T, L, N, R, S, B, C, E (configurable)
RTD Types Pt100 (according to IEC 60751), Pt1000, Ni100, Ni1000, LG-Ni 1000 (configurable)
Measurement Range Depends on sensor type (e.g., K-type TC: -270°C to +1372°C)
Resolution 16-bit (including sign)
Conversion Time 40 ms per channel (all channels)
Accuracy ±0.3% of full scale (for Pt100 at 23°C ±5°C)
Max. Allowable Input 50 V DC (between channel and ground)
Isolation 500 V AC between field side and bus side
Connection Removable screw terminal block
Diagnostic LEDs CH1 ERR, CH2 ERR, I/O LED (module status)
Bus Communication TM3 bus via base module
Power Supply From TM3 base (5 V DC via bus)
Operating Temperature -20°C to +60°C
Storage Temperature -25°C to +70°C
Relative Humidity 10% to 95% (non-condensing)
Standards & Certifications CE, UL, cUL, RoHS