Pilz PSS SB TESTER D - Manual (Page 38)

Tests/Measurements
5-20 Operating Manual: PSS SB TESTER
Example for “Dom. Level CAN_H”:
lower limit: 2.8 V
upper limit: 4.5 V
measured value: 3.5 V
test result: OK
Separate tests: Testing the signal edges
Abbreviations for these separate tests in the “Device xx” window:
• Rising edge CAN_H
• Falling edge CAN_H
• Rising edge CAN_L
• Falling edge CAN_L
Each device on SafetyBUS p is tested to ensure the signals it is sending
have the correct edges. The rise and fall time of the signals on CAN_H and
CAN_L are measured.
The measured time is shown in the detailed display of the result from
these separate tests.
Example for “Rising edge CAN_H”:
measured value: 86 ns
Fig. 5-11: Rise/fall time
Mean signal - 10 %
Mean signal +10 %
Rise time Fall time