Rockwell Automation 1791DS-IBxxxx Guard I/O DeviceNet Safety Modules - Manual (Page 99)

Rockwell Automation Publication 1791DS-UM001J-EN-P - May 2013 99
Configure Modules in RSNetWorx for DeviceNet Software Chapter 6
Typically, you should choose Combined Status for the input status.
This limits the packet size for normal communication. If you need detailed
status when a fault occurs, that data is read explicitly via MSG instructions.
Choose the appropriate input connection and add the output connection,
if necessary.
Set the Connection Type
From the Connection Type pull-down menu, choose the appropriate connection
type.
Combined Creates these tags and enables all modules outputs, safety and test.
Choose Description