Rockwell Automation T3831 ICS Regent Communications Package for Winterpret - Manual (Page 3)

Communications Package for W INTERPRET (T3831)
P D - 6 0 4 1 M a r c h , 0 6
3
communications see Configuring the Guarded Peer-Link,
starting on page 11.
Guarded Peer-Link Operation
Guarded Peer-Link communications allow multiple Regents to
send and receive data over a bussed serial communications
network. This multidrop network can be made redundant by
using up to five separate multidrop legs, each connected to
serial ports on the Regent communications modules. An
example is shown in Figure 1.
Figure 1. Guarded Peer-Link Communications Network.
Each leg of the GPL network requires one Regent to act as the
GPL Master for the leg. When redundant legs are used for
fault tolerance, each leg has a unique GPL master. For
example, in Figure 1, Regent 1 is the GPL master for network
leg 1 and Regent 4 is the GPL master of network leg 2. By
utilizing separate GPL masters for each network leg, the GPL
communications can be maintained as long as at least one
GPL master is running.