ProSoft Technology MVI69-MCM - Manual (Page 98)

Diagnostics and Troubleshooting MVI69-MCM ♦ CompactLogix or MicroLogix Platform
User Manual Modbus Communication Module
Page 98 of 167 ProSoft Technology, Inc.
March 22, 2011
Starting the Data Analyzer
Press [B]
to start the data analyzer. After the key is pressed, all data transmitted
and received on the currently selected port will be displayed. The following
illustration shows an example.
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.