Expert functions
5.5 Example: Expanding the process data area
Connecting the SIMODRIVE 611U to the Technology CPU
Product Information, 03/2008, A5E00272066-05
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5.5 Example: Expanding the process data area
Introduction
The signals of the process data area are updated in the PROFIBUS cycle clock. The
evaluation takes place on the SIMODRIVE 611U in the speed control cycle clock (standard
125 µs). The reading and writing of the signals are performed asynchronously using the
technology functions.
Task specification
● Based on the desired axis functionality, message frame 102 is to be used to connect the
SIMODRIVE 611U.
● Both of the analog inputs of the SIMODRIVE 611U are to be read in the user program.
● An analog value of 0 to 10 V is to be output via the two analog outputs.
● The actual torque value of the drive is to be evaluated in the user program.
Note
The analog channels on the SIMODRIVE 611U are not required for the PROFIBUS
connection, and the user can make use of these as desired.
In order to utilize the function, message frame 102 must be expanded as follows:
3='
3='
3='
3='
3='
3='
3='
3='
3='
3='
3='
3='
3='
3='
7(/ 67: 162//B% 67: 0B5H
G
*B6
7:
'$8 '$8
3
8
7(/ =6: 1,67B% =6:
:
*B=
6:
*B;,67 *B;,67 $'8 $'8
3
8
3ODQQH
G
0VHW
0HVVDJH
$FWXDO
Figure 5-2 Message frame 102
Message frame 102
Additional functions
Not assigned
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