Diagnostics and Troubleshooting
MVI56-CAS
♦
ControlLogix Platform
Teledyne CA Slave Module
ProSoft Technology, Inc.
Page 37 of 86
December 26, 2007
4.1.6 Data
Analyzer
The data analyzer mode allows you to view all bytes of data transferred on each
port. Both the transmitted and received data bytes are displayed. Use of this
feature is limited without a thorough understanding of the protocol.
Note:
The Port selection commands on the Data Analyzer menu differs very slightly in
different modules, but the functionality is basically the same. Use the illustration above
as a general guide only. Refer to the actual data analyzer menu on your module for the
specific port commands to use.
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.
Analyzing Data for the first application port
Press
[1]
to display I/O data for the first application port in the Data Analyzer.
The following illustration shows an example of the Data Analyzer output.
Analyzing Data for the second application port
Press
[2]
to display I/O data for the second application port in the Data Analyzer.
Displaying Timing Marks in the Data Analyzer
You can display timing marks for a variety of intervals in the data analyzer
screen. These timing marks can help you determine communication-timing
characteristics.
Key Interval
[5] 1
milliseconds
ticks
[6] 5
milliseconds
ticks
[7]
10 milliseconds ticks
[8]
50 milliseconds ticks
[9]
100 milliseconds ticks
[0]
Turn off timing marks
Removing Timing Marks in the Data Analyzer
Press
[0]
to turn off timing marks in the Data Analyzer screen.