DP diag

1

detected bus errors:
Displays the number of bus errors detected. If this counter is not 0, the cabling should be checked, if no PROFIBUS plug connectors were unplugged or connected. Unplugging of PROFIBUS connectors usually results in brief bus interference.

2

CycleWithRepeatCounter:
Here, the number of PROFIBUS cycles is displayed, in which a telegram was repeated at least once. Repetitions indicate that there is something wrong with the bus hardware.

Max. Repeat/Cycle:
Here, the maximum number of repetitions within a cycle is displayed.

3

Measured Cycle Times:
Displays the measured cycle times.

4

Failed-Cycle-Counter:
The counter increments if the DP cycle was not complete before the next task cycle was started and all slaves are in data exchange (i.e. they have a DpState of 0).

5

CycleWithNoDxch-Counter:
Increments if not all slaves exchange data (i.e. DpState is not 0).

6

max./min./actual Cycle-Time:
Displays the maximum, minimum and current DP cycle times; only those cycles are taken into account, in which all slaves have exchanged data and no repetitions have occurred.