Rockwell Automation T3831 ICS Regent Communications Package for Winterpret - Manual (Page 28)

Communications Package for W INTERPRET (T3831)
2 8
Industrial Control Services
Figure 13. Application Scan Time Increase by GPL Communications.
For example, assume the same GPL configuration shown in
Table 7 where the total amount of GPL data is 914 bytes.
Using this value for the total GPL data, Figure 13 illustrates
that each Regent’s scan time would increase approximately
110 milliseconds when the network is active (Connect Network
command) and approximately 150 milliseconds when the two
legs of the network are running (Start Network command for
each Net Master).
Optimizing GPL Performance
In the example illustrated above for GPL performance, a cycle
time of 1.05 seconds and a scan time increase of 150
milliseconds were estimated. These values could be reduced
significantly if the total amount of GPL data could be reduced.
One simple way to reduce the total amount of GPL data is
avoid configuring bit type variables for GPL. Instead, if we