102 Rockwell Automation Publication 1734-UM013J-EN-P - July 2014
Chapter 5 Configure the Module in a GuardLogix Controller System
Configure Safety
Connections
Follow these steps to configure the module’s safety input connection.
1. From the Module Properties dialog box, click the Safety tab.
2. Click Advanced to open the Advanced Connection Reaction Time Limit
Configuration dialog box.
a. In the Requested Packet Interval (RPI) field, enter the input
connection RPI to support your application (between 6 and 500 ms).
The smallest input RPI allowed is 6 ms. Selecting small RPIs consumes
network bandwidth and may cause nuisance trips because other devices
cannot get access to the network.
As an example, a safety input module with only E-stop switches
connected may generally work well with settings of 50…100 ms. An
input module with a light curtain guarding a hazard may need the
fastest response possible. Selecting appropriate RPIs results in a system
with maximum (best) performance.
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