Communication / USS
02.2004
6SE7087-6QX70 (Version AD) Siemens AG
8.1-36
Compendium Motion Control
SIMOVERT MASTERDRIVES
8.1.5.2
Parameterizing the parameterizing enable and process-data
interconnections (2nd step)
During start-up, an interface with the USS protocol must be explicitly
enabled for parameterization in order to be able to change (= write) the
parameters of a SIMOVERT MASTERDRIVES via this interface
−
this
applies to the parameters of the basic unit (P/U parameters) and to the
technology-board parameters (H/L parameters).
Access to the SIMOVERT MASTERDRIVES via USS protocol is only
possible if, during start-up, the PKW area is appropriately defined to
contain 3, 4 words (fixed length) or a variable PKW length (= value 127)
in the useful (net) data area.
The following rules apply to this:
♦
All parameters (P, r, U and n parameters of the basic units, or H, d,
L and c parameters of the technology board) can be read out via
any interface.
For reading purposes
, it is
not
necessary that the
interface has been enabled for parameterization.
P, U, H and L parameters:
Can be read and written
r, n, d and c parameters:
Can only be read
♦
Parameterizing enable is specified in
parameter P053
(parameter
access). This parameter
can always be written
from any interface.
♦
Several interfaces can be in possession of a parameterizing enable
simultaneously.
S CB 2
T100
C UPM
C UM C
Interfaces
Value for P053
USS interface
USS interface
USS interface at SCom2
(not in Compact PLUS)
USS interface at SCom1
PMU
8
16
32
4
2
H parameters
d parameters
P parameters
r parameters
Fig. 8.1-16
Parameterizing enable for the USS interfaces
Parameterization of
the parameterizing
enable
NOTE
