NetTEST II Menu Guide
©
COMSOFT
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.
Summary of Contents for NetTEST II
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