02.2004
Communication / USS
Siemens AG
6SE7087-6QX70 (Version AD)
SIMOVERT MASTERDRIVES
Compendium Motion Control
8.1-41
The "wiring" of the setpoints is done via parameters
P443
(source main
setpoint),
P433
(source supplementary setpoint 1),
P438
(source
supplementary setpoint 2), and so on. For a detailed description, see
the instruction manual.
Source for the setpoints
Values for parameters P443, P433, P438 and
so on
Interface allocation:
SCom1
SCom2
SCB2
2
0xx
6
0xx
4
5xx
Position of the setpoints (16-bit quantity) in the PZD
area:
In the
2
nd word
→
0
2
In the
3
rd word
→
0
3
and so on
xx = 02,03, 04 (only if control word 2 is not
transferred), 05, up to 16
Position of the setpoints (32-bit quantity) in the PZD
area:
In the 2nd word + 3rd word
→
3
2
Rules for generating:
xx = 30 (indicates 32-bits) + position in the PZD area at
which the 32-bit setpoint begins.
In the
3
rd word and 4th word
→
3
3
and so on
x x = 32,33 (only if control word 2 is not
transferred), 34 (only if control word 2 is not
transferred), 35, up to 45
When 32-bit quantities are being transferred, the high word is located in
PZD n and the low word in PZD n+1
→
For example, 32-bit setpoint in PZD2 and PZD3; the high-word is
then transferred in PZD2 and the low word in PZD3 via the USS bus.
The main setpoint (32-bit quantity) comes from SCom1 and is located
in the 2nd word and 3rd word of the PZD area. Control word 2 is in the
4th word. In the 5th and 6th words, supplementary setpoint 1 (32-bit
quantity) is transmitted (for BICO data set 1).
Parameter
number
Parameter Index
and
value
(index i001 for BICO data set 1)
(index i002 for BICO data set 2)
P443
Source of main setpoint
i001 = 2032
P433
Source of supplementary
setpoint 1
i001 = 2035
Example 2
NOTE
