BECKHOFF CP-Link3 - Manual (Page 77)

Page 77
Setting the HID Focus
manually via ADS or using the
function block
FB_CPLink3_AcquireHidFocus
does not work. The CP-Link 3 Service is not
running. Verify the status of the CP-Link 3
Service. Maybe the CP-Link 3
Service needs to be registered or
started (see also CP-Link 3 Service
section).
On using an USB Bus Coupler,
the Coupler's outputs drop out
or the Bus Coupler does not
behave like expected. Faulty configuration or faulty use of
the USB Bus Coupler.
Multiple Bus Couplers have identical
device numbers.
The cycle time for data exchange
with the Bus Coupler is too short. Check the configuration for the use
of USB Bus Couplers (see also
Using the USB Bus Coupler ).
Ensure that different device
numbers are assigned to all Bus
Couplers (see also Device Number
of USB Bus Coupler ).
Use the recommended cycle time
for data exchange with the Bus
Coupler (see also Cycle time for
data exchange ).
The MissedCnt variable of an
USB Bus Coupler is
incrementing . The cycle time for data exchange
with the Bus Coupler is too short.
Faulty configuration of the RT
Ethernet when accessing the Bus
Coupler via RT Ethernet. Use the recommended cycle time
for data exchange with the Bus
Coupler (see also Cycle time for
data exchange ).
Check the RT Ethernet configuration
when accessing the Bus Coupler via
RT Ethernet (see also "Virtual USB
Interface (Remote)" via RT Ethernet
, or Access via network variables
(RT Ethernet) , or ADS access via
RT Ethernet )
A client's (running Windows
XP) USB devices cannot be
used if the PC has been
started in "Safe Mode". The operating system prevents
loading particular CP-Link 3 drivers,
because these drivers use network
components of the operating system
that are not available in "Safe
Mode". The successful loading of
these drivers is a requirement for
the operating system to load the
USB-Hub driver. Therefore, the
USB-Hub driver is not loaded which
leads to the client's USB devices to
be unusable. Start the operating system in "Safe
Mode with Networking".