NORD Drivesystems BU0590 - Manual (Page 30)

PROFINET bus module for NORD frequency inverters SK 5xxE
30 Subject to technical amendments BU 0590 GB-0312
4.2.4 Examples
4.2.4.1 Reading of module parameter P170 Index 0 (actual error)
Data record 100 is used:
Field Data size Byte Date Explanation
Order label
+
Parameter number
2 Byte
2
01 h
+492 h
_________
1492 h
Read parameter value (see Section 4.2.3 )
+
Parameter number P170 (+1000) = 492 h
Parameter index 2 Bytes 3
4
00 h
00 h
Parameter sub-index (see Section 4.2.3.2)
Parameter value 4 Bytes 5
6
7
8
00 h
00 h
00 h
00 h
Setting value not set with read order
Table 26 Example telegram for reading parameter P170
S7 Code example:
CALL "WRREC" , DB53

WriteRequest
REQ :=#bStart
ID :=DW#16#7FC

Diagnosis address
INDEX :=100

Data set 100
LEN :=8

Length: 8 Bytes
DONE :=#bEnde
BUSY :=#bBusy
ERROR :=#bError
STATUS:=#wStatus
RECORD:=P#DB10.DBX0.0 BYTE 8

Data: 14h,92h, 00h,00h, 00h,00h, 00h,00h
CALL "RDREC" , DB52

ReadResponse
REQ :=#bStart
ID :=DW#16#7FC

Diagnosis address
INDEX :=100

Data set 100
MLEN :=8
VALID := …
BUSY := …
ERROR := …
STATUS:= …
LEN := …
RECORD:=P#DB10.DBX12.0 BYTE 8

Response: 14h,92h, 00h,00h, 00h,00h, 03h,FCh
The value read is P170 = 1020 (03FCh).