Siemens SIMATIC ET 200pro - Page 236

Appendix
A.3 Handling STARTER
SIMATIC ET 200pro FC-2 converter
236 Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
Figure A-2 Writing parameters
Explanation of FC 3
Table A- 4 Request to change parameters
Data block DB 3
Byte n
Bytes n + 1
n
Header
Reference MB 42
02 hex: Change request
0
01 hex
Number of parameters MB 44
2
Address, parame-
ter 1
10 hex: Parameter value
Number of indexes 00 hex
4
Parameter number MW 21
6
Number of the 1st index MW 23
8
Values, parame-
ter 1
Format MB 25
Number of index values MB 27
10
Value of the 1st index MW35
12
SFC 58 copies the specifications for the parameters to be written from DB 3 and sends them
to the inverter. The inverter blocks other write jobs while this write job is running.