Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 81)

Rockwell Automation Publication 1752-UM001E-EN-P - June 2014 81
Configure Your Controller for DeviceNet Communication Chapter 7
module will only accept the connection if the signature matches what is in
the device.
5. Review the Connection Reaction Time Limit.
The Connection Reaction Time Limit is the maximum age of safety
packets on the associated connection. If the age of the data used by the
consuming device exceeds the Connection Reaction Time Limit, a
connection fault occurs. Adjust the Connection Reaction Time Limit by
changing the RPI or the Advanced Communication Properties as
described in steps 6 and 7.
6. Set the requested packet interval (RPI).
The RPI specifies the period at which data updates over a connection. The
RPI is entered in 1 ms increments, and the controller supports a valid
range of 5…500 ms with a default of 10 ms. Other target devices may have
more limited RPI constraints. Consult the documentation for each type of
target device to determine its supported range and incremental values.
Modifying the RPI affects the Connection Reaction Time Limit. For
simple timing constraints, setting the RPI is usually sufficient. However,
for more complex requirements, click Advanced to further adjust the
timing values affecting the Connection Reaction Time Limit.
7. Set the Advanced Safety Connection Properties (if required).
IMPORTANT If you do not choose Configuration signature must match, you are
responsible for verifying the safety integrity of your system by some
other means.