Siemens SIMOVERT MASTERDRIVES Manual page 305

Communication / PROFIBUS
NOTES
8.2.3 Mechanisms for processing parameters via the PROFIBUS
Parameter area
(PKW)
Parameter ID
Bit No.: 15
AK
Parameter index
Bit No.: 15
The structure and significance depend on the type of data
Parameter value
Parameter value High
Parameter value Low
AK:
SPM:
PNU:
8.2-18
♦ You can operate a SIMATIC OP together with a drive, irrespective of
any automation system which may be present. A simple "point-to-
point" connection with only two nodes is possible.
♦ The "Variable" OP functions can be used for drives. Other functions
cannot be used (e.g. "Messages" or "Recipes").
♦ Access is possible to individual parameter values. Access is not
possible to whole arrays, descriptions or texts.
♦ The parameter values transferred to the OP are the non-standardized
internal values of the drive. You can influence the value displayed on
the OP with "Functions" in Pro Tool (e.g. "Linear conversion").
♦ The diagnostic output on the SIMATIC OP is limited. In the case of
unsuccessful attempts at access, the CB diagnostic parameter,
r732.22. and the following can help you further. See Section
"Diagnosis and Troubleshooting".
With the PKW mechanism (for PPO types 1, 2 and 5 and when the
acyclical channels, MSAC_C1 and MSAC_C2, are used), you can
perform the following tasks:
♦ Handling and visualizing parameters (read/write)
♦ Transferring and acknowledging parameter change reports (not
realized)
The parameter area always contains at least 4 words.
12 11 10
SPM PNU
8 7
transfer (see following pages)
Task ID or reply ID
Toggle bit for processing the parameter change report
Parameter number
Table 8.2-3 Structure of the parameter area (PKW)
(PKE)
(IND)
(PWE)
(PWE1)
(PWE2)
6SE7087-6QX70 (Version AG)
Compendium Motion Control
1 st word
0
2 nd word
0
3 rd word
4 th word
Siemens AG
SIMOVERT MASTERDRIVES
05.2006