Transmission Time - Siemens SINAMICS Series Operating Instructions Manual

Limitations:
● In a telegram, a PZD may only be sent and received once. If a PZD occurs more than
once in a telegram, then Alarm A50002 or A50003 is output.
● It is not possible to read in your own send data. An appropriate alarm is initiated.
The following alarms are possible:
– A50006: It is parameterized that own data sent can be received. This is not permitted.
– A50007: The send telegram word is larger than possible in the project.
– A50008: The receive telegram word is larger than possible in the project.
● The maximum number of PZDs that can be received and sent also depends on the drive
object. The number of PZDs that can be evaluated corresponds to communication
according to PROFIdrive; however, for SINAMICS Link, it is limited to a maximum of
32 PZDs.
● If, as a result of a project download, parameters of the CBE20 are change, then alarm
A08531 is output. In this case, a POWER ON is required to activate the values.

Transmission time

A transmission time of up to 1.5 ms is possible when using SINAMICS Link.
Bus cycle and number of nodes
A maximum of 64 participants can communicate with one another via SINAMICS Link. To do
so, set the maximum number of nodes with p8811 (project selection):
In the non-synchronized mode, the bus cycle of the SINAMICS Link can be set with p8812[1]
to 1000 µs or 2000 µs.
After changing parameter p8811, p8812, p8835 or p8836, carry out a POWER ON to
transfer the settings.
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
Number of participants /
project no.
64
16
12
8
10.6 Communication via SINAMICS Link
Number of PZD
16
16
24
32
Descriptions of functions
Bus cycle (ms)
1 or 2
0.5
0.5
0.5
513