NORD Drivesystems BU0290 - Manual (Page 42)

PROFINET bus module for NORD frequency inverters SK 200E
42 Subject to technical amendments BU 0290 GB-4312
5.2.4 Examples
5.2.4.1 Reading of module parameter P170 Index 0 (actual error)
Data record 100 is used:
Field Data size Byte Datum Explanation
Order label
+
Parameter number
2 Byte
2
01 h
+
4 92 h
_________
1 4 92 h
Request parameter value (Read) (refer to Section 5.2.3.1)
+
Parameter number P170 (170
dec
+1000
dec
) = 492 h
Parameter index 2 Bytes 3
4
00 h
00 h
Parameter sub-index (refer to Section 5.2.3.2)
Parameter value 4 Bytes 5
6
7
8
00 h
00 h
00 h
00 h
Setting value not set with read order
Table 28 Example telegram for reading parameter P170
S7 Code example:
CALL "WRREC" , DB53

WriteRequest
REQ :=#bStart
ID :=DW#16#7FC  Diagnosis address
INDEX :=100

Data record 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 record 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).