Siemens SINAMICS G120 CU230P-2 HVAC Operating Instructions Manual page 334

Appendix
A.1 Application examples
Explanation of FC 1
Table A- 4
Data block DB 1
Header
Address,
parameter 1
Address,
parameter 2
Address,
parameter 3
Address,
parameter 4
SFC 58 copies the specifications for the parameters to be read from DB 1 and sends them to
the converter 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 control takes the parameter
values from the converter via SFC 59 and saves them in DB 2.
332
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
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Bytes n + 1
01 hex: Read request
Numberof parameters (m)
Number of indices
MW 50
MW 63
Number of indices
MW 52
MW 65
Number of indices
MW 54
MW 67
Number of indices
MW 56
MW 69
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
n
0
MB 62
2
MB 58
4
6
8
MB 59
10
12
14
MB 60
16
18
20
MB 61
22
24
26