Pathway DMX QConnect Software for CR Manual - Manual (Page 34)

DMXQConnect for CR - User Guide Diagnostics and Troubleshooting
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DMXPathfinder on the received file to ensure data integrity. The response
message "Successful patch file transfer" should be seen in QConnect’s
DMXPathfinder Event Log for every file send operation. If the message
"Unsuccessful patch file transfer" appears, there is probably hardware trouble,
most likely with the Master Control Module (MCM) in the Pathfinder. Replace
the MCM with a spare unit and retry the file transfer. Another possible cause
for this error would be incompatible software versions between DMXQConnect
and the MCM EPROM.
The second and more likely cause of error, would be a defective or missing
Input or Output Module. In this instance the file transfer would be successful,
but the end result would not be. The ERR LED on the face of the MCM, and
possibly on the suspect IPM or OPM, would be illuminated. The message
"Output [or Input] Card nnn Communications timeout error" would appear in
the Event Log, where nnn indicates the sequential number of a suspect input
or output module. Locating a defective input module is easy since there are no
more than eight in any system (001 - 008), but it may take some counting to
find a bad output module (001 - 128). Replace the suspect module with a
known good one, making sure that the replacement's rotary address switches
are set to the correct module number, and retry the file transfer. The MCM
ERR LED should now be off, and the response message should not indicate
any problems.
L OOPBACK T EST
DMXQConnect incorporates a link to a built-in set of input/output diagnostic
test routines in the DMXPathfinder firmware. The purpose of the System
Loopback Test is to allow the user to verify the proper operation of each and
every data receiver or transmitter, crosspoint matrix device, cable and
connection used for passing DMX signals through the Pathfinder. To
accomplish this, QConnect provides the means of sequentially checking all
Pathfinder hardware or selecting a specific set of input or output circuitry for
testing. The Pathfinder will respond with confirmation of the currently selected
hardware I/O device channel and the status of the test (passed or failed).
CAUTION: before running the Loopback Test routines, first ensure that
any Input or Output modules to be tested are not connected by the
installed wiring or portable cabling to any external transmitting or
receiving equipment whatsoever. As well, when Loopback Test is started
all DMX data moving through the DMXPathfinder will be cut off until you
exit from the DMXPathfinder Control screen.
There are two ways to run the Loopback Tests: using a graphical screen or
using a terminal window method. We suggest that if you are simply checking
for cable integrity, the graphic screen is most convenient. If you are carrying