Rockwell Automation Publication 5069-UM004A-EN-P - April 2019 201
Configure and Replace Safety Modules   Chapter 7
Safety Category
The Safety category lets you set the RPI rate. You must click the Advanced 
button to change the Connection Reaction Time Limit configuration.
For more information on the RPI and the Connection Reaction Time Limit 
parameters, see 
Requested Packet Interval on page 47.
IMPORTANT Remember, the Safety Task period determines the 5069-OBV8S or 
5069-OBV8SK module RPI.