Instructions

NetTEST II Menu Guide
© KUNBUS 13
Figure 7: Screen ‘Test with no term’
The Test with no term. lasts for a few seconds. The duration
depends on the cable length. To show the user that the system
is still working, a star bar appears on the lower left hand side of
the display as progress indication. Terminate the test with .
Upon conclusion the result will be displayed. Attention: If you
quit the test with , the Test with 1 term. cannot be executed
any more, as the just scanned data were deleted.
If no error is detected on the PROFIBUS segment, a "positive
acknowledgement" message will appear, displaying the cable
impedance and cable length according to the following figure.
Figure 8: Screen after ‘Test with no term’
The following error indications, that impede correct length and
impedance measurement, may occur:
 "No error: Impedance not detected": Cable length for the
impedance measurement is too short.
 "Error: No length measured": Cable length is either too
short for length measurement or there is no cable
connected.
 "Error: A<->shield / B<->shield short circuit": There is a
low ohmic resistance between signal wire and shield.