Rockwell Automation 6008-SI IBM PC I/O SCNNR 6008-SI - Manual (Page 115)

Chapter 10
User Diagnostic Program
10-3
CAUTION: If you are running U_D1, screen dumps
(
[shift]-PrtSc
) cause the scanner to lose communication with
the host computer. The screen dump successfully occur but
further attempts to operate the system in the message:
SCANNER
COMMUNICATIONS LOST
. Adapters on the I/O link go to Last State
or Reset, depending on their switch settings. Re-enter U-D1
[ret]
to restart the system.
The program tries to establish communication with the scanner. If that
attemp succeeds, and a
/b
or
/r
option was specified, the program executes
a setup command to change the baud rate or resistor setting as specified.
The program then does an autoconfigure.
If communication is established, the program displays the message
initial sync OK
followed by a list of adapters connected.
If the program can’t establish communication with the scanner, or if any of
the other initialization actions fail, the program displays information about
the nature of the failure and then the message
Abnormal program termination
Main command prompt
The program displays the current operating status and prompts you for a
command, like this:
operating mode(s): program
your command (H for help):
Enter a command from the list later in this section. The program executes
the command, displays the results, and then repeats the command prompt.
If you select a command that is incompatible with the current operating
mode, the program tells you so and asks you whether it should change the
mode as necessary and then execute the command.
If you see this message:
scanner communication lost! (code)
Program Operation