Section 12: Troubleshooting guide
Series 3700A System Switch/Multimeter Reference Manual
12-2
3700AS-901-01 Rev. D/June 2018
To identify installed switching cards from the web interface:
1. Select the
Unit
page.
2. In the Report area, select the slots that you want information about.
3. Select
Firmware Revision
.
4. Click
Generate Report
. Information about the cards in the slots is displayed below the button.
To identify installed switching cards from the remote command interface:
Use
print(slot[
slot
].idn)
to query and identify installed switching cards:
print(slot[
slot
].idn)
Where:
slot
= slot number (from 1 to 6)
Example
To get a list of all switching cards installed in the slots of a Series 3700A, send the following
command over the remote command interface:
for x=1,6 do print (slot[x].idn) end
The response will be similar to the following:
3722, Dual 1x48 Multiplexer, 01.00a, <Module Serial Number>
3721, Dual 1x20 Multiplexer, 01.02a, <Module Serial Number>
Empty Slot
Empty Slot
Empty Slot
Empty Slot
USB troubleshooting
This section provides information checks you can perform if the USB communication with the
instrument is not working.
Check driver for the USB Test and Measurement Device
1. Open Device Manager. From the
Start
menu, you can enter
devmgmt.msc
in the Run box or the
Windows search box to start Device Manager.
2. Under USB Test and Measurement Devices, look for USB Test and Measurement Device.
If the device is not there, either VISA is not installed or the instrument is not plugged in and
switched on.
