Analyzing Data For The First Application Port; Analyzing Data For The Second Application Port; Displaying Timing Marks In The Data Analyzer - ProSoft Technology MVI69-GSC CompactLogix User Manual

MVI69-GSC ♦ CompactLogix or MicroLogix Platform
Generic ASCII Serial Communication Module
4.2.4 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
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