All SixTRAK IPm models and the ET-GT-ST-3 have two independent Ethernet ports. They are labeled ‘Network 1’ and ‘Network 2’. Network 1 has one RJ45 connector. Network 2 includes a built-in SIXNET Industrial Ethernet switch with four RJ45 connectors (SixTRAK IPm models only).
Notes:
Each Ethernet port ("Ethernet 1" and "Ethernet 2") has its own MAC address.
Both Ethernet ports use the same IP port number (1594) for SIXNET TCP and UDP protocols. The port number for Modbus communication is 502.
The two Ethernet ports should be assigned IP addresses and subnet masks such that they operate on independent Ethernet networks. If the two Ethernet ports are configured to reside on the same Ethernet network, the controller’s operating system may disable one of the two Ethernet ports to prevent conflicts.
An ‘Ethernet port to serial port passthru’ connects one serial port to both Ethernet networks.
When attempting to load a configuration into a SixTRAK IPm or ET-GT-ST-3, the SIXNET I/O Tool Kit will first use the settings for Ethernet 1. If unsuccessful, the settings for Ethernet 2 will be used. If still unsuccessful, the SIXNET I/O Tool Kit will request permission to use a broadcast address.
Note: You can tell the SIXNET I/O Tool Kit to try Ethernet 2 first, by choosing ‘Use this IP address’ in the Select Communication Device window and entering the IP address for Ethernet 2.
When configuring I/O Transfers over Ethernet, the SixTRAK IPm or ET-GT-ST-3 will automatically choose which Ethernet port to use. The decision will be based on the IP address and subnet mask you assign in the Communication Setup window for each I/O Transfer.