Selecting the Fallback Mode for Analog Outputs

At a Glance

This parameter defines the behavior adopted by outputs when the PLC switches to STOP or when there is a communication error.

The possible behavior types are:

Fallback: Outputs are set to an editable value between ‐10,000 and +10,000 (0 is the default).
Maintain value: Outputs remain in the state they were in before the PLC switched to STOP.

Instructions

The following table provides instructions for defining the fallback behavior assigned to outputs of analog modules.

Step	Action
1	Access the hardware configuration screen for the appropriate module.
2	Check the box in the cell of the Fallback column for the output you want to configure.
3	Enter the desired value in the cell of the Fallback Value column. Result: The selected fallback mode will be assigned to the selected output.
4	To select the Maintain mode instead, uncheck the box in the cell of the Fallback column for the channel in question. Result: The maintain value behavior will be assigned to the selected output.
5	Validate the change by clicking Edit → Validate.