Hi,
I am trying to connect a Agilent 34405A meter to my work laptop (HP Elitebook 8440p running Windows 7 Professional 64-bit) via a USB cable. I have installed Agilent IO Libraries 16.1. When I plug in the USB cable the drivers are installed and a USB Test and Measurement Device (IVI) appears in the Device Manager. But when I run Agilent Connection Expert I get a commnuication failure (The instrument address check failed).
I have tried this on two other computers and it has worked fine, but I need to get it working with my work laptop.
Regrads,
mssloan
I am trying to connect a Agilent 34405A meter to my work laptop (HP Elitebook 8440p running Windows 7 Professional 64-bit) via a USB cable. I have installed Agilent IO Libraries 16.1. When I plug in the USB cable the drivers are installed and a USB Test and Measurement Device (IVI) appears in the Device Manager. But when I run Agilent Connection Expert I get a commnuication failure (The instrument address check failed).
I have tried this on two other computers and it has worked fine, but I need to get it working with my work laptop.
Regrads,
mssloan
It is true that this is a firmware issue. However, if you cannot communicate with the instrument then you cannot update the firmware.
I found this to be a communication issue with the USB ports on the Dell OptiPlex 9010 I was using. I was able to use an older Dell OptiPlex 760.
The oddity is that the Dell OptiPlex 9010 has USB-2.0 ports just as the Dell OptiPlex 760. However, the instrument will NOT communicate on the OPT9010 ports where it will communicate on the OPT760.
I'm assuming a Dell driver update or something might have caused this issue for me.
Attaching the instrument to an OPT760 allowed me to update the firmware, making it compatible with the USB ports of the Dell OPT9010. The Windows OS and Connection Expert will now properly communicate with the 34405A-DMM.
Try using an older model computer to do you firmware update.
Thank you - just had exactly this problem with two oldish 34405As. Trying to connect to two different Windows 7 64-bit PCs (one unbranded I5 quad-core desktop, one Dell E6520 I5 laptop), got the exclamation-mark icon and "Driver could not be started" message in Device Manager.
Installed Keysight IO Libraries 16.3 on an old Dell D830 laptop (dual-core, Win7 32-bit), both DMMs were able to connect with no problems shown in Device Manager. Ran the Firmware Upgrade program, upgraded one from 1.39, other from 1.40, both to 1.50 - now both DMMs connect to both of the two PCs previously showing the problem.