Siemens SIMATIC ET 200pro FC-2 Operating Instructions Manual page 262

Appendix
A.1 STEP 7 program examples
Explanation of FC 1
Table A- 3
Data block DB 1
Header
Address, parame-
ter 1
Address, parame-
ter 2
Address, parame-
ter 3
Address, parame-
ter 4
SFC 58 copies the specifications for the parameters to be read from DB 1 and sends them to
the inverter as a read request. No other read requests are permitted while this one is being
processed.
After the read request and a waiting time of one second, the controller takes the parameter
values from the inverter via SFC 59 and saves them in DB 2.
260
Request to read parameters
Byte n
MB 40
Reference
01 hex
10 hex: Parameter value
Attribute
Parameter number
Number of the 1st index
10 hex: Parameter value
Attribute
Parameter number
Number of the 1st index
10 hex: Parameter value
Attribute
Parameter number
Number of the 1st index
10 hex: Parameter value
Attribute
Parameter number
Number of the 1st index
Bytes n + 1
01 hex: Read request
Number of parameters (m)
Number of indexes
MW 50
MW 63
Number of indexes
MW 52
MW 65
Number of indexes
MW 54
MW 67
Number of indexes
MW 56
MW 69
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257324B AF
MB 62
MB 58
MB 59
MB 60
MB 61
SIMATIC ET 200pro FC-2 converter
n
0
2
4
6
8
10
12
14
16
18
20
22
24
26