Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 187)

Publication 1753-UM001C-EN-P - March 2010 187
Configure Peer-to-Peer Communication Chapter 17
on page 157 ), ReceiveTMO must be calculated and set manually by
overwriting the default value in the Peer-to-Peer Editor.
For profiles where ProdRate = 0 (Fast & Cleanroom, Fast & Noisy),
ReceiveTMO is:
ReceiveTMO = T
R
– 2 x WDZ(PES
1
) – 2 x WDZ(PES
2
)
For profiles where ProdRate
≠
0, ReceiveTMO is:
ReceiveTMO = [T
R
– 3 x WDZ(PES
1
) – 2 x WDZ(PES
2
)]
÷
2
Calculate the ReceiveTMO with the suitable formula and overwrite the
default value in the Peer-to-Peer Editor.
In first approximation, the ResponseTime can be calculated as:
ResponseTime = ReceiveTMO
÷
2
Overwrite the default value of the ResponseTime with the calculated
value.
Define The Signals to Exchange Between Each Controller
Connection
1. Right-click a resource in the project tree and choose
Peer-to-Peer Editor.
The Peer-to-Peer Editor opens.
2. Click a line number (leftmost column) in the Peer-to-Peer Editor
table.
This selects a controller with which the controller, named in the
headline of the Peer-to-Peer Editor, exchanges data.
TIP
Setting the ResponseTime this way allows the controller to
resend a message, in case of unexpected message loss. For
best network performance, the ReceiveTMO and the
ResponseTime are optimized after the project has been
compiled, loaded and started on the controllers. At that time,
the actual ResponseTimes and the actual cycle times can be
read in the Control Panel.