Using the ConnectZBUS method always returns 0 for USB3 interface

Tech Note: TN2302
Product: ActiveX
Version: All
Date Added: 2023-06-06

Issue

ConnectZBUS for the USB3 interface was added in v98. It will always return 0, even when successful.

Workaround

Use the RPcoX connection method for catching hardware connection issues. See example below.

MATLAB

zBUS = actxserver('ZBUS.x');
zBUS.ConnectZBUS('USB3') % always returns 0

RP = actxserver('RPco.x');
if RP.ConnectRZ6('USB3',1)
    e = 'Connected'
else
    e = 'Unable to connect'
end