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User Manual
GFK-1503F
13.4.3
Ethernet Global Data Groups
If more than one device on the network should consume a Global Data exchange, those
devices can be set up as a group. The network can include up to 32 numbered groups.
Groups allow each sample from the producer to be seen simultaneously by all consumers in
the group.
A device can belong to more than one group, as shown in the following illustration.
Figure 206
Each device in a group responds to the group's assigned ID number. For CPUE05, the Group
IDs are 1 to 32.
Each Group ID corresponds to a Multicast (Class D) IP address reserved by the Internet
authorities. The default Multicast IP addresses used by Ethernet Global Data are:
Group ID
1
2
.
.
.
32
Group Multicast IP Addresses used by Ethernet Global Data should not be changed unless
the defaults would cause a network conflict. If necessary, they can be changed within the
reserved range of multicast IP addresses (224.0.0.0 through 239.255.255.255). The
change must be made using an Advanced User Parameter File.
Ethernet Communications
IP Address
224.0.7.1
224.0.7.2
.
.
.
224.0.7.32
Chapter 13
Jan 2020
230
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