Pilz PSS Series Operating Manual page 21

The PSS SB TESTER then checks whether "Vcc" is without voltage. If this
is the case, the test is performed and the following message appears on
the display: "Connection test in progress".
If voltage is present at "Vcc", the test will not be carried out because the
test results could be corrupted or the Tester could be damaged.
NOTICE
While the connection test is in progess, no voltage must be supplied to the
"Vcc" pin and SafetyBUS p must not be switched on, otherwise there is the
risk of the test results being corrupted or the Tester being damaged.
When the test is complete, the "Results" window is displayed. Each line
corresponds to a separate test. A code is entered at the end of each line :
- "x": Negative test result
- "v": Positive test result
- "c": Test was corrupted due to capacitance between the cables. The
measured values should not be viewed as accurate.
- "d": Test was corrupted due to a diode or similar component between the
cables. The measured values should not be viewed as accurate.
To look at the result of a single test in more detail you can move the cursor
to that test and then press VAL.
You can return to the "Results" window by pressing ESC.
Operating Manual: PSS SB TESTER 5-3