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Configuring
When configuring the system, it should be noted that the number of
Number of nodes
nodes is restricted by the following factors:
• Pulse frequency set in MASTERDRIVES MC
• Data quantity to be transferred
The following formula applies:
N
When the MASTERDRIVES MC pulse frequency is set to 5 kHz, for
Node tables
example, the following values are determined:
Table 4-6
4-28
The sampling time for the time sector to be synchronized is obtained
from this pulse frequency (parameter number P340).
The number of telegrams which are to be sent along the SIMOLINK
ring between the SL master and the slaves.
+
P746
3.18181
µs
=
−
2
6.36
µs
•
with P746=bus cycle time (this depends on the pulse frequency and the
time sector to be synchronized)
•
with P745=number of channels
•
with 6.36 µs=telegram run time
No. of channels
0.8 ms (T2)
1
124
2
62
3
41
4
31
5
24
6
20
7
17
8
15
Node table for various bus cycle times (drive converter/inverter time sectors
in brackets)
1
∗
P745
No. of nodes
1.6 ms (T3)
201
124
83
62
49
41
35
31
Application Module FM 458 - User Manual
6DD1904-0AE0
3.2 ms (T4)
201
201
167
125
100
83
71
62
Edition 12.2001
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