Siemens simovert masterdrives Compendium

02.2004 Communication / USS
Siemens AG 6SE7087-6QX70 (Version AD)
SIMOVERT MASTERDRIVES Compendium Motion Control 8.1-19
Source for the ON/OFF1 command (control word 1, bit 0): P554
(= 22A hex)
Change parameter value of index 1 to the value 2100 (hex).
Parameter value
Bit No.: 31 24 23 16 3
rd
word, PWE1
(hex)
0 0 0 0
Bit No.: 15 8 7 0 4
th
word, PWE2
(hex)
2 1 0 0
Bit 0 to 15:
Bit 16 to 31:
Parameter value for 16-bit parameter or low component for 32-bit parameter
Value = 0 for 16-bit parameter or high component for 32-bit parameter
8.1.2.3 Process-data area (PZD)
In this area, process data are continually exchanged between the
master and slaves. The process data to be exchanged with a slave is
configured at the start of communications. The setpoint for the current
is to be transferred to slave x in the second PZD (= PZD2), for
example. This setting is fixed for the whole procedure of data transfer.
PZD1-PZD16 = Process data
(= control / status word(s) and setpoint(s) / actual value(s))
The control/status word(s), setpoint(s) and actual value(s) required for
the automation system are transferred in this area.
The length of the PZD area is determined by the number of PZD
elements and their size (e.g. word, double word). In contrast to the
PKW area, which can be variable, the length of this area (master and
slaves) must always be agreed on between the communication
partners. The maximum number of PZD words per telegram is limited to
16 words. If only PKW data is to be transferred in the net data block,
the number of PZDs may even be 0!
In PZD1, control word 1 or status word 1 is always transferred,
depending on the direction of data transfer and, in PZD2, the main
setpoint or the main actual value is always transferred, again
depending on the direction of data transfer. In the subsequent process
data areas PZD3 to PZDn, additional setpoints and actual values are
sent. For SIMOVERT MASTERDRIVES, control word 2 or status word
2, if necessary, is transferred in PZD4.
1 word 1 word 1 word 1 word
PZD1 PZD2 PZD3 • • • PZD16
Maximum 16 words
Minimum 0 words, i.e. no PZD area in the net data block
PZDn is always transferred before PZDn+1 on the USS bus.
Example
Parameter value
Structure of the PZD
area
NOTE

Siemens simovert masterdrives Specifications

General

Brand	Siemens
Model	simovert masterdrives
Category	DC Drives
Language	English