Panametrics Aurora H2O, User Manual

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Aurora H2O User’s Manual 23
Appendix B. Aurora H2O Ethernet Operation
B.4 Communicating by MODBUS via Ethernet
The Aurora H2O Ethernet option supports two communications modes:
• MODBUS/TCP over Ethernet
• MODBUS/RTU over Ethernet
The Aurora H2O and the Ethernet option must be correctly configured for the desired communications mode.
B.4.1 MODBUS/TCP
Note: As shipped, the Aurora H2O is configured to use the Modbus/TCP Ethernet protocol.
Select MODBUS/TCP (MB/TCP) from the Aurora H2O menu ( Main Menu, Settings…, Ethernet…,
Protocol ).
To use Modbus/TCP over Ethernet, the Ethernet module must also be configured as
follows:
1. Log in to the web user interface. Either the root account or an operator account may be used to configure the
module.
2. Choose Serial Ports from the Configuration Menu . Verify that Industrial Automation is selected as the Profile (see
Figure 111 below).
3. Click on the Port 1 link to display the current Profile .
Figure 111: MB/TCP Serial Port 1 Profile
3. If the information displayed is not correct, change the profile as required.