Test and Measurement Forum

Cannot connect to more than one USB PT-104 device

Post any questions you may have about our current range of USB data loggers

Cannot connect to more than one USB PT-104 device

Postby spm » Wed Apr 06, 2011 12:45 pm

I have tried connecting to 2 usb PT-104 devices at the same time but can only connect to the first one. I get an error code 3 when I try to connect to the 2nd one. I am using different handles and I have tried this out in Excel, VB 6 and in VC. I swapped the order of the connection around and still see the same problem.

I have also noticed that one of the units when connected on its own doesn't like to be connected a 3rd time. I can connect, retrieve values and disconnect 2 times but on the 3rd connection it gives me error code 3.

I have updated to USBpt104sdk_r10_1_0_17 and the problem still exists.

Is this a similar issue to Picolog 1000 Fix (PicoLog 1012 and 1216) in the Announcements section?

Has anyone else had an issue connecting to more than one unit at a time?

Re: Cannot connect to more than one USB PT-104 device

Postby Chris » Thu Apr 07, 2011 8:51 am

There is a probelm with the current driver, when you open > 1 unit via USB, by providing their serial numbers.

You can open >1 unit if you do not provide the serial numbers of the units....

Dim handle1 As Integer
Dim handle2 As Integer
Dim status As Integer

status = UsbPt104OpenUnit(handle1, 0)
status = UsbPt104OpenUnit(handle2, 0)

Opening > 1 unit via ethernet, by providing serial numbers isn't affected by this issue

(A bug report has been submitted to the development team)
Site Admin
Site Admin
Posts: 169
Joined: Tue Aug 17, 2010 9:00 am
Location: St. Neots

Return to USB PC Data Loggers

Who is online

Users browsing this forum: No registered users and 0 guests