How to modify the Fallback Mode Parameter of a Discrete Output Module

At a Glance

This parameter defines the Fallback mode assumed by the outputs when the controller moves to Stop, after a processor error, rack or inter-rack cable error.

Possible modes are:

Mode	Meaning
Fallback	Channels are set to 0 or 1 according to the defined fallback value for the corresponding 8 channel group.
Maintenance	The outputs retain their status they had before moving to Stop.
Continuous	This mode concerns only the TSX DMY 28RFK module. Event outputs are updated by the module: When this mode is selected, the event function remains active.

NOTE: The modification of this parameter is possible in online mode.

Procedure

The following table shows the procedure for defining the fallback mode assigned to a channel group.

Step	Action
1	Open the desired module configuration screen.
2	For the desired channel group, click on the arrow of the Fall Back mode drop-down menu of the General parameters zone. Result: A drop-down list appears.
3	Select the desired fallback mode.
4	For Fallback mode, configure each channel of the selected group. To do this, click on the drop-down menu arrow of the channel to be configured, located in the Fall Back Value column.
5	Click on the desired value (0 or 1).
6	Confirm the modification with the Edit → Validate menu command.