Hi everyone,
I have been building a measurement program and now I have encountered a problem which I can't figure out.
I am using the USB-GPIB controller to communicate with 10 devices.
One of them, a ITC503, seemingly random chooses to freeze on a time scale from minutes to days. Nothing in the routine changes which could trigger this. The program is basically in standby and only collects temperatures.
I logged the last of these events with the NI Spy (German Version). (my translation)
(Please take a look at the included editor file)
The
last state remains until I
restart the device. The only
unusual thing that appears is
this "J" in the device
return.
Moreover,
the whole GPIB is dead.
I can't reach any other
device and if I use
the Measurement & Automation Explorer to scan for
instruments there are none.
The
Program prompts with the error
message "general I/O-error" "operation
was canceled" and if I
click on continue the next
error will be "memory full"
"no listener for GPIB found".
One possible source for interference could be the
simultaneously mounted Oxford-ISOBUS, which connects a Power
Supply (IPS120) as Master to
four other devices including the one ITC
503. That's why I use a lot of Select Device Clears.
Thanks for ideas!
