ALTUS Nexto NX3004 - Page 294

6. Redundancy with NX3030 CPU
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Parameters that must be configured in the Exchange IP method:
 IP Address Active: PLCA communication address
 IP Address Non Active: PLCB communication address
 Subnetwork Mask
 Gateway Address
Active IP
This method is used in the redundant NX3030 CPU NETs and is also possible to be configured in the
NX5000 modules. In this method there’s an IP for the Active half-cluster and two more IPs, one for
the PLCA and another for the PLCB. In the redundant NX3030 CPU NETs, the Active IP address is
added to the interface of the Active PLC, and it can use either the Active IP address or the PLCX IP
address in order to establish communication with the PLC. On the other hand, in the NX5000
Ethernet modules the Active IP address substitutes the Non-Active PLCX IP address, when the PLC
is in Active mode.
Figure 6-11. Active IP method – Redundant NX3030
Parameters that must be configured in the Active IP method for the NETs of a redundant NX3030
CPU:
 IP Address Active: IP address added to the interface when the PLC is in Active state;
 IP Address PLC A: PLCA communication address, apart from its current state;
 IP Address PLC B: PLCB communication address, apart from its current state;
 Subnetwork Mask;
 Gateway Address.