ProSoft Technology MVI56E-GSC/ GSCXT User Manual
Page 69
MVI56E-GSC ♦ CompactLogix or MicroLogix Platform
Diagnostics and Troubleshooting
Enhanced Generic ASCII Serial Communication Module
User Manual
ProSoft Technology, Inc.
Page 69 of 140
May 9, 2014
The Data Analyzer can display the following special characters.
Character
Definition
[ ]
Data enclosed in [square brackets] represent data received on the port.
< >
Data enclosed in
These characters are inserted when the Ready To Send (RTS) line is driven high
on the port, just before data transmission begins.
These characters are inserted when the RTS line is dropped low on the port,
indicating the end of transmission.
These characters are displayed when the Clear to Send (CTS) line is recognized
high. These characters will appear only when hardware handshaking is enabled in
the port configuration (Use CTS = 1). Most applications do not require the use of
hardware handshaking.
_TT_
These characters are displayed when the "Time Tick" is set to any value other than
"No Ticks". Time Ticks will be displayed at the interval selected in the Data
Analyzer Setup dialog box and will be interspersed with any data received on the
port. ASCII Characters or Decimal byte values shown between any two Time Ticks
will indicate the characters received on the port during that time interval.
3.5.2 Stopping the Data Analyzer
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 stop the data
analyzer. This action will allow the module to resume its normal high speed operating mode.