BECKHOFF FC520x User Manual
Page 25
Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149
FC520x / CX1500-x520
24
BECKHOFF FC520x / CX1500-x520
4.2.2.3
GeneralDiag
Cycle-Time: CycleTime of the DeviceNet-FW
BusLoad.: DeviceNet Bus Load in %
Failed Cycle Counter: This counter increments each time when at the beginning of theTwinCAT-Cycle
the last Bus-Cycle was not finished. If the Cycle-Time of the DeviceNet-FW exceeds the CycleTime of the
corresponding highest priority task this counter is incremented.
If the Failed Cycle Counter is incremented permanently after the Network-Start, the following has to be
checked:
-
Cycle-time of the corresponding highest priority task should may adapted to the max. Cycle-Time
of the DeviceNet-FW
-
Network-Load for the DeviceNet-Master has to be checked. There are may too much DeviceNet
Boxes connected to the DeviceNet Master, which could cause a heavy CycleTime for the De-
viceNet Master FW.
-
Check IO-Cycle Times of attached DeviceNet-Boxes. Some of the IO-Cyle Times of the De-
viceNet Boxes are may to fast, which could cause a heavy CycleTime for the DeviceNet Master
FW.
-
Check DeviceNet Bus-Load