User Manual

Communication over CANopen
6.9 CAN bus sampling time
Fieldbuses
214 Function Manual, 04/2018, FW V4.7 SP10, A5E34229197B AE
6.9
CAN bus sampling time
The CAN bus sampling time is 4 ms. The inverter can send and receive telegrams within this
time frame.
Receive telegrams cycle time
● For cyclic receive telegrams, the cycle time must be greater than twice the sampling time.
Telegrams could be lost if the cycle time is any less than this. In this case, warning
A08751 appears.
● With receive telegrams for which data does not change faster than twice the sampling
time, it is possible to set a cycle time shorter than twice the sampling time if your
application permits telegrams to be lost in the process.
An A08751 warning can be avoided by changing the message type to "No message" via
parameters p2118 and p2119.