Siemens SIMODRIVE 611 universal - Page 284

5
5.7 Settings at the PROFIBUS DP master
5-284
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
 for DP slaves with SIEM808F.GSD (from SW 3.1)
Using the configuration telegram, the ”DP slave 611U” is signaled
the length of the I/O data, the axis number and consistent or incon-
sistent data transfer mode.
Net data – maximum length
The maximum length of the net data is 20 words for each drive
(PKW section = 4 words, PZD section = max. 16 words).
PZD – minimum length
if no clock–synchronous operation: I/O = min. 2/2 words
for clock–synchronous operation: I/O = min. 4/4 words
Any combination of I/O data is possible, whereby the length for the
data must be specified as either word or double–word resolution
(one word = 16 bits).
The 2–byte ID 01FE
hex
is used to differentiate between the two con-
figuration data of the two drives.
A PKW section is present, if the first entry for an axis is F3
hex
.
Table 5-34 IDs in the configuration telegram
Entry
Meaning
Data transfer
Entry
Meaning
Consistent Inconsistent
1 PKW
No PKW
F3
00 or  F3
1 or 2 ... last n words I/O F(n–1) with the
exception F3
7(n–1)
1 or 2 ... last n words I D(n–1) 5(n–1)
1 or 2 ... last n words O E(n–1) 6(n–1)
Table 5-35 Examples: Configuration data for SIEM808F.GSD
Data transfer
Example
Consistent
(complete length)
Inconsistent
(consistent over 1
word)
1–axis 2–axis 1–axis 2–axis
With PKW with PZD =
10/10 words (I/O),  PPO
5)
F3F9 F3F9
01FE
F3F9
F379 F379
01FE
F379
the PKW section is
always consistent
Without PKW with PZD =
8/15 words (I/O)
D7EE D7EE
01FE
D7EE
576E 576E
01FE
576E
5 Communications via PROFIBUS DP
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