Siemens SINAMICS G120 Original Instructions Manual page 128

Configuring the fieldbus
7.3 PROFIdrive profile for PROFIBUS and PROFINET
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 7-5 Telegram for a read request from p7841[2]
Write request: Change restart mode (p1210)
The restart mode is inhibited in the factory setting (p1210 = 0). In order to activate the
automatic restart with "acknowledge all faults and restart for an ON command", p1210 must
be set to 26:
● PKE, bit 12 ... 15 (AK): = 7 (change parameter value (field, word))
● PKE, bit 0 ... 10 (PNU): = 4BA hex (1210 = 4BA hex, no offset, as 1210 < 1999)
● IND, bit 8 ... 15 (subindex): = 0 hex (parameter is not indexed)
● IND, bit 0 ... 7 (page index): = 0 hex (offset 0 corresponds to 0 hex)
● PWE1, bit 0 ... 15: = 0 hex
● PWE2, bit 0 ... 15: = 1A hex (26 = 1A hex)
Figure 7-6 Telegram, to activate the automatic restart with p1210 = 26
128
Parameter number = PNU + offset (page index)
(7841 = 1841 + 6000)
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG