How to wire a TM3AQ2 PLC expansion module can be difficult if you are unfamiliar with the hardware. In this video, we will go through the wiring of that specific module, as well as most pertinent information from the datasheet. You can also take what we covered in this video and expand it to the TM3AQ4 module, as it is just an expanded version with more connection points that still follows the same format.

The TM3 line are expansion modules that can be used with the Schneider Modicon PLC line. They are designed to be used with a main PLC of the M221, M241, M251, or M262 type. By adding an expansion module, the number of digital (discrete) or analog inputs or outputs, as well as some speciality inputs for temperature or fast counting can be expanded. In this video series, we go through “How to Wire” each part of these programmable logic controllers in depth, referring to the manufacturer’s data sheets and industry best practices. And while this series is exclusive to the Schneider hardware, other manufacturers like ABB, Siemens, Allen-Bradley, Omron, Automation Direct, or any of the multitude of others available follow the same format in the documentation and

Browse through the playlist, and watch the videos on the models that you are looking for help on. Playlist videos are all listed below.

How to Wire any TM3 expansion module (Schneider Modicon) playlist
Digital (Discrete) Inputs
• Using Sinking DC inputs on a TM3 (Video 1)
• Using Sourcing DC inputs on a TM3 (Video 2)
• Using AC inputs on a TM3 (Video 3)
Digital (Discrete) Relay Outputs
• Wiring AC outputs on a TM3 (Video 4)
• Wiring Sourcing outputs on a TM3 (Video 5)
• Wiring Sinking outputs on a TM3 (Video 6)
Digital (Discrete) Transistor Outputs
• Wiring outputs for a Sinking DC TM3 (Video 7)
• Wiring outputs for a Sourcing DC TM3 (Video 8)
Combination Digital IO modules
• Wiring a TM3 module that has inputs and outputs for IEC Positive logic (Video 9)
• Wiring a TM3 module that has inputs and outputs to IEC Negative logic (Video 10)
Analog Inputs
• Wiring analog Voltage inputs to a TM3 (Video 11)
• Wiring analog Current inputs to a TM3 (Video 12)
• Wiring Temperature inputs to a TM3 (Video 13)
Analog Outputs
• Wiring analog (4-20 mA) outputs from a TM3 (Video 14)
• Wiring analog (0-10v) outputs from a TM3 (Video 15)
Combination Analog IO modules
• Wiring an analog "input and output and temperature" TM3 (Video 16)