6. REDUNDANCY WITH NX3030 CPU
Figure 173: IP Automatic Change
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
6.3.11.3. Active IP
This method is used in the redundant NX3030 CPU NETs and it’s 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 174: 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
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