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H D 2 - D M - A / D M - A M
Requirements
•
Cables,
•
Power Hub,
•
HD2-DM-A,
•
supply power and
•
Host
are connected to the segment.
Possible Measurements/Checkouts
•
all measurements described in section above.
Background mode:
•
Signal level on the bus (missing Terminator)
•
Noise level on the bus
•
Jitter on the bus
•
Host signal polarity
UI-mode:
•
number of transmitted telegrams
•
number of Cyclic Redundancy Check faults (CRC)
•
number of Pass Token Misses
•
Oscilloscope monitoring of the bus signal
•
Oscilloscope triggering of CRC or framing faults
If the Segment Focus is enabled for one segment, only the checks/mea-
surements described at point 2 for the other three segments are possi-
ble.
If the Oscilloscope monitor is enabled, parallel to them only the checks/
measurements described at point 2 are possible.
Oscilloscope monitors exclude each other. Only one can run at a time.
Host/Slave checkout
Requirements
•
Cables,
•
Power Hub,
•
HD2-DM-A,
•
Supply power,
•
Host and
•
Slaves
are connected to the segment.
Possible Measurements/Checkouts
•
all measurements described before.
Background mode:
•
Signal level of each slave on cyclic data exchange
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com
Use Cases and Troubleshooting
Copyright Pepperl+Fuchs, Printed in Germany
95
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Table of Contents
Troubleshooting
