Siemens SINAMICS G120 Operating Instructions Manual page 104

Configuring the fieldbus
8.3 PROFIdrive profile for PROFIBUS and PROFINET
Indexed parameters
For indexed parameters, you must write the index number as hex value into the sub-index
(IND bit 15 ... 8).
Parameter contents
Parameter contents can be parameter values or connector parameters. For interconnecting
connector parameters please see section: Interconnecting signals in the inverter (Page 315).
Enter the parameter value, right-justified, as follows in the 4th word of the parameter
channel:
 8-bit values:
 16-bit values: 4. Word, bits 0 ... 15,
 32-bit values: 3. and 4th word
Enter a connector parameter as follows:
 Number of the connector parameter:
 Drive object of the connector parameter:
 The index or bit field number of the connector parameter:
Telegram examples
Read request: Read out serial number of the Power Module (p7841[2])
To obtain the value of the indexed parameter p7841, you must fill the telegram of the
parameter channel with the following data:
● PKE, bit 12 ... 15 (AK): = 6 (request parameter value (field))
● PKE, bit 0 ... 10 (PNU): = 1841 (Parameter number without offset)
● IND, bit 8 ... 15 (subindex): = 2 (Index of the parameter)
● IND, bit 0 ... 7 (page index): = 90 hex (offset 6000 ≙ 90 hex)
● Because you want to read the parameter value, words 3 and 4 in the parameter channel
for requesting the parameter value are irrelevant. They should be assigned a value of 0,
for example.
Figure 8-4 Telegram for a read request from p7841[2]
102
4. Word, bit 0 ... 7,
bits 8 ... 15 of the 4th word and the 3rd word are zero.
The 3rd word is zero.
Parameter number = PNU + offset (page index)
(7841 = 1841 + 6000)
3. Word
4. Word, bits 10 ... 15
4. Word, bits 0 ... 9
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB