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PROFIBUS-DP Bus Adapter
page 21
and
tab. 6-2 "Response data frame in PKW area (from slave to mas-
ter)" on page
21. If frequency converter fails to execute PKW area request
command, it will return error code to the master in VALUE_low. Refer to
"Error code" on page 22
Fig. 6-2: Data format of PKW area
Request data frame in PKW area
●
Word
Identifier
ID
1
st
IND
2
nd
VALUE
rd
3
high
VALUE
4
th
low
Tab. 6-1: Request data frame in PKW area (from master to slave)
Response data frame in PKW area
●
Word
Identifier
ID
1
st
DOK-RCON01-PROFIBUS***-IB04-EN-P
for details.
Bit
Value
0000B No task
0001B Request to read function code parameter
15 – 12
0010B Request to modify function code parameter
Other Illegal command code
11
0
Reserved
10 – 8
000B
Group No. for function code parameter
7 – 0
xxH
15 – 8
xxH
Index serial number of function code within the group
7 – 0
0
Reserved, default is 0
15 – 0
0
Reserved, default is 0
1. When reading parameters, default is 0.
15 – 0
xxxxH
2. When modifying parameters, it is modified value.
3. It can be of any value in case of no operation.
Bit
Value
0000B No task
Correct in reading or modifying function code parame-
0001B
15 – 12
ter
Wrong in reading or modifying function code parame-
0111B
ter, and error message is shown in VALUE_low
11
0
reserved, default is 0
10 – 8
000B
Group No. of function code parameter
7 – 0
xxH
Bosch Rexroth AG
Periodical Data Communication
Description
Description
tab. 6-3
21/35
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