OMNI 4000/7000 Operations and Maintenance Guide – Rev F
7.2.6 Test Communications
If you need to troubleshoot communication issues by determining the proper way to access
certain Modbus register types, the Test Communications function acts as a Modbus master
simulator where you can read and write the data to an individual register.
To use the test communications application, follow these instructions:
In the Actions ribbon, click Diagnostics.
Click on Test Communications in the
Diagnostics tree.
Use the options at the top of the screen to define the data register you wish to test.
a. Click the Transmit button to send the test message to the flow computer. You should
receive back Data Values, the Transmit Message, and a Receive Message.
b. Click the Repeat button to send the message continuously. You can edit how fast it
repeats in the Repeat Delay field.