Analog input/output modules contain analog inputs/outputs for the automation system. Via these modules, analog sensors and actuators can be connected to the automation system.
Use of the analog input/output modules offers users the following advantages:

• Optimal adaptation:
  The number of inputs/outputs can be adapted to a particular task through the appropriate module combination. There is no unnecessary investment cost.
• Powerful analog technology:
  Different input/output ranges and high resolution allow connection of many different analog sensors and actuators.