ProSoft Technology MVI71-MCM - Manual (Page 43)

Diagnostics and Troubleshooting MVI71-MCM ♦ PLC Platform
Modbus Communication Module
ProSoft Technology, Inc. Page 43 of 111
December 28, 2007
The Data Analyzer displays the following special characters:
Character Definition
[ ] Data enclosed in these characters represent data received on the port.
< > Data enclosed in these characters represent data transmitted on the port.
These characters are inserted when the RTS line is driven high on the port.
These characters are inserted when the RTS line is dropped low on the port.
These characters are displayed when the CTS line is recognized high.
_TT_ These characters are displayed when the timing mark interval has been reached.
This parameter is user defined.
Stopping the Data Analyzer
Press [S] to stop the data analyzer. Use this option to freeze the display so the
data can be analyzed. To restart the analyzer, press [B].
Important: When in analyzer mode, program execution will slow down. Only use this
tool during a troubleshooting session. Before disconnecting from the Config/Debug
port, please press [S] to stop the data analyzer, and then press [M] to return to the
main menu. This action will allow the module to resume its normal high speed
operating mode.
Returning to the Main Menu
Press [M] to return to the Main Menu.
4.1.7 Data Analyzer Tips
From the main menu, press [A] for the "Data Analyzer". You should see the
following text appear on the screen:
After the "Data Analyzer" mode has been selected, press [?] to view the Data
Analyzer menu. You will see the following menu: