ProSoft MVI56E-MCMR User Manual page 134

Diagnostics and Troubleshooting
User Manual
To begin the display of the communications data, start the Data Analyzer. When
the Data Analyzer is running, you should see something like this.
The <R+> means that the module is transitioning the communications line to a
transmit state.
All characters shown in <> brackets are characters being sent out by the module.
The <R-> shows when the module is done transmitting data, and is now ready to
receive information back.
And finally, all characters shown in the [ ] brackets is information being received
from another device by the module.
After taking a minute or two of traffic capture, stop the Data Analyzer.
Page 134 of 223
MVI56E-MCMR ♦ ControlLogix Platform
Modbus Communication Module with Reduced Data Block
ProSoft Technology, Inc.