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.
<R+> These characters are inserted when the RTS line is driven high on the port.
<R-> These characters are inserted when the RTS line is dropped low on the port.
<CS> 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: