Siemens SIMOVERT MASTERDRIVES Manual page 451

05.2006
Parameterization of
the transceivers
Parameterization of
process data
monitoring
Siemens AG 6SE7087-6QX70 (Version AG)
SIMOVERT MASTERDRIVES
• The time slot T
0
units by selecting the pulse frequency (P340). Thus the following
applies for the selection of the bus cycle time:
Bus cycle time = 2
where n ∈ N = {2, 3, ...}
Example:
If the position control loops of the various converters have to be
synchronized to each other, the selected bus cycle time has to be
an n-fold quantity of 4 T
Transceiver (slave drive 2) is given the node address 1 and transceiver
(slave drive 3) is given the node address 2.
The following diagrams show the assignment of the process data to be
read or written using the example of master drive 1 and slave drive 2.
Telegram
1 0 ZW_2
Channel number
SIMOLINK
Address
Fig. 8.3-8 Master drive 1, reading data
Telegram
STW_2
0 0
Channel number
Address
Fig. 8.3-9 Master drive 1, writing data
Compendium Motion Control
= 1/pulse frequency is set on MASTERDRIVES
n
x slowest time slot to be synchronized;
.
0
Node address
0
from which address to be read
Address Channel
number
1 0
2
0
SLB in master drive (dispatcher)
0
SIMOLINK SLB in master drive (dispatcher)
Communication / SIMOLINK
from which channel number
to be read
ZW_2
ZW_3
ZW = Status word
Receive memory (8 x 32 bit)
Node address
0
STW_2
1 STW_3
2 s
set
3 n
set
4 a
set
5
6
7
STW = control word
8 channels 32 bit each
8.3-23