Communication errors when using UZ1/UB4 interfaces with RX family devices

Tech Note: TN0178
Product: UZ1, UB4
Version: All
Date Added: 2005-03-10

Issue

Using the UZ1 or UB4 interface with an RX device can cause errors. The zBUSmon transfer test may fail resulting in a "System Test Error" error message. ActiveX commands may fail and RPvdsEx will not work properly (you may get a "Device not responding on USB bus" error message, and some components may not work, e.g. graph).

Solution

Upgrade to UB2 USB2.0/zBus Interface or Gbit interface.