Siemens SINAMICS G110M - Page 144

Configure fieldbus
7.4 PROFIdrive profile for PROFIBUS and PROFINET
SINAMICS G110M Operating Instructions
144 Operating Instructions, 04/2015, FW V4.7.3, A5E31298649B AD
Parameter contents
Parameter contents can be parameter values or connectors.
Table 7- 6 Parameter values in the parameter channel
PWE, 3rd word
PWE, 4th word
Bit 15 … 0
Bit 15 … 8
Bit 7 … 0
0
0
8-bit value
0
16-bit value
32-bit value
Table 7- 7 Connectors in the parameter channel
PWE, 3rd word
PWE, 4th word
Bit 15 … 0
Bit 15 … 10
Bit 9 … 0
Number of the connector 3F hex The index or bit field num-
ber of the connector
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)
Parameter number = PNU + offset (page index)
(7841 = 1841 + 6000)
●
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 7-4 Telegram for a read request from p7841[2]