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Communication protocol 147
Example 4: Writing a PROFIdrive parameter (word)
In this example, current parameter settings are saved to the
FLASH memory of the drive. This is done by setting the value of
PROFIdrive parameter 971 (3CBh) to 1.
Note that the drive always observes the Control word (CW)
and reference (REF) bytes.
The values shown below are
examples.
Write: Req
DP
header
2
3
C
B
0
0
0
0
0
0
0
0
0
0
0
1
0
4
7
F
3
4
1
5
DP
trailer
Resp
1
3
C
B
0
0
0
0
0
0
0
0
0
0
0
1
0
3
3
7
3
4
1
5
CW
REF
Request (Parameter value write)
Parameter Number (971 decimal)
IND
Param.Value
SW
ACT
Param.Value
IND
Parameter Number (971 decimal)
Response (Parameter value updated)
Summary of Contents for FPBA-01 PROFIBUS DP
Page 4: ......
Page 10: ...10 Table of contents Document library on the Internet 195 ...
Page 20: ...20 About the manual ...
Page 26: ...26 Overview of the PROFIBUS network and the FPBA 01 module ...
Page 30: ...30 Mechanical installation ...
Page 91: ...Start up 91 8 Click Properties Network Settings and set baud rate ...
Page 98: ...98 Start up ...
Page 118: ...118 Communication profiles ...
Page 178: ...178 Diagnostics ...
Page 182: ...182 Technical data ...