Siemens SINAMICS G120 - Page 132

Configuring the fieldbus
7.3 PROFIdrive profile for PROFIBUS and PROFINET
Inverter with CU230P-2 Control Units
132 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Changing parameter values
Table 7- 7 Request to change parameters
Data block
Byte n
Bytes n + 1
n
Header
Reference 01 hex ... FF hex
02 hex: Change request
0
01 hex
Number of parameters (m) 01 hex ... 27 hex
2
Address, parameter 1
10 hex
: Parameter value
Number of indexes
00 hex ... EA hex
(00 hex and 01 hex have the same
significance)
4
Parameter number 0001 hex ... FFFF hex
6
Number of the 1st index 0001 hex ... FFFF hex
8
…
…
Address, parameter 2
…
…
…
…
Address, parameter m
…
Values, parameter 1
Format
02 hex: Integer 8
03 hex:
Integer 16
04 hex:
Integer 32
05 hex:
Unsigned 8
06 hex:
Unsigned 16
07 hex:
Unsigned 32
08 hex:
Floating Point
10 hex:
Octet String
13 hex:
Time Difference
41 hex:
Byte
42 hex:
Word
43 hex: Double word
Number of index values
00 hex ... EA hex
Value of the 1st index
…
Values, parameter 2
…
…
…
Values, parameter m
…
Table 7- 8 Response, if the inverter has executed the change request
Data block
Byte n
Bytes n + 1
n
Header
Reference (identical to a change request)
02 hex
0
01 hex
Number of parameters
(identical to a change
request)
2