The ABB EXTT 3402091100 is a PLC Module.

ABB PLC modules are programmable logic controllers used in industrial automation applications. They are used to control machines and processes by reading inputs from sensors and sending outputs to actuators.

There are many different types of ABB PLC modules available, each with its own specific functions. Some common types of ABB PLC modules include:

• Digital input modules: These modules are used to read digital signals from sensors.
• Digital output modules: These modules are used to send digital signals to actuators.
• Analog input modules: These modules are used to read analog signals from sensors, such as temperature sensors or pressure sensors.
• Analog output modules: These modules are used to send analog signals to actuators, such as motor drives or valve controllers.

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