Siemens Simovert Masterdrives Compendium page 483

Communication / SIMOLINK
NOTE
8.3-12
Normally, this parameter does not have to be altered. The
dispatcher passes on the determined number of nodes to the slaves
automatically. The latter deduce the necessary delay time from this
if the parameter has been set to 0 ( = automatic calculation). Only in
the case of high accuracy requirements and special influences
(SIMOLINK switch, long leads) might it be necessary to manually
alter this parameter.
The calculated delay time t
checked in parameter r748 Index 6.
♦ P744: SLB selection (dispatcher and transceiver)
Only MASTERDRIVES MC: Is for selecting source of
synchronization and data when there are two SIMOLINK boards or
CBPs in a MASTERDRIVES unit.
♦ P745: SLB channel number (dispatcher)
This parameter is used to set the number of used channels (max. 8).
The selected value is firmly applicable for all nodes on the bus.
♦ P746: SLB cycle time (dispatcher)
This is used to set the bus cycle time. The bus cycle time can be set
from 0.20 ms to 6.50 ms in a 10 µs grid.
The dispatcher determines the task table from the SLB channel number
and the SLB cycle time (consecutive numbering, starting with node
address 0 and channel number 0, at first incrementing the channel
number) in accordance with the following formula:

P746 + 3.18 μs
 
= −
n
6.36 μs

n: Number of addressable nodes (checked at r748 Index 4)
Task table example:
P746 = 0.20 ms; P745 = 2; → n = 15
Address 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8
Channel 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
Address 9 9 10 10 11 11 12 12 13 13 14 14 255 255
Channel 0 1 0 1
Only those addresses and channels listed in the task table are
processed.
♦ P 749: SLB read address (dispatcher and transceiver)
Is for setting the channels to be read. Input is in the notation
address.channel. Up to 8 channels can be defined by the 8
parameter indices. The data in these channels are transferred via
connectors K7001 - K7016 or KK7031-KK7045.
(normalized to 3 bit times) can be
vz,n

1
 
×
2
P745

0 1 0 1 0
6SE7087-6QX70 (Version AM)
Compendium Motion Control
12.2010
1 0 1 0 0
Siemens AG
SIMOVERT MASTERDRIVES