CHAPTER 2. USBOARD-USS5
2.14. LEGAL NOTES
2.13.1 General Questions
2.13.1.1 How do the USBoard-USS5 and ultrasonic sensors work?
Both the basic principle of ultrasonic sensors and the cross-echo operating mode of the USBoard-USS5 are described
in detail at
(page 10).
2.13.1.2 The sensor readings are not what I expected.
Unfortunately this is a common problem of ultrasonic sensors and caused by the physical measuring principle. Differ-
ent from laser light ultrasound waves are easily disturbed and bounced around which leads to faulty readings in some
situations. They also react differently to different materials and surfaces. This is the reason why the USBoard-USS5
is not a safety device.
Please take a look into our
(page 13). We also strongly recommend to do some tests and experiments with
the system before going into production.
2.13.1.3 How to get measurement data as fast as possible?
Disabling all sensor channels that are currently not in use will prevent the USBoard-USS5 from trying to send pulses
on these channels and from waiting for an echo. This will reduce the cycle time needed for updating measurements
from all sensors that are actually used. Please take a look at the parameter set description at
(page 15)
and command
CMD_SET_CHANNEL_ACTIVE
at
(page 19).
In some applications it might also be an option to use the
(page 11).
2.13.2 Connection Problems
2.13.2.1 The CAN bus reports errors
Please make sure that there is at least one CAN terminating resistor on the bus. The recommended configuration is
one 120 Ohm resistor between CAN High and CAN Low at each physical end of the bus line.
The USBoard-USS5 features
(page 35) to enable the integrated terminating resistor. Please use the
GUI to activate the resistor of the USBoard-USS5-IP.
2.13.2.2 The GUI does not connect to the USBoard-USS5
In case of a direct USB connection please check the following:
• Did you select the correct port? Some computers still have internal COM ports that can be mixed up with the
virtual port of the USBoard-USS5’s USB connection. Try with all available ports.
• Has the port number changed? Different USBoard-USS5 may have different port numbers assigned by the
operating system. Please close and restart the GUI to make it update the port list.
2.14 Legal Notes
The general legal notes can be found at
(page 49).
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