Parameter assignment
3.6 Parameter assignment of the DP communication
SIMOTION ADI4 - Analog Drive Interface for 4 Axes
62 Manual, 05/2009, 6FC5 297-0BA01-0BP6
Execution scheme T
MAPC
: T
DP
= 1 : 1
0DVWHURUSRVLWLRQ
FRQWUROOHU
'ULYHV
'3VODYHWR
6SHHG
FRQWUROOHU
F\FOHFORFN
352),%86'3
FRPPXQLFDWLRQ
'['['[*& '39 '['['[
1&
7
,
7
0
7
2
7
0$3&
7
'3
*&
7
';
5
7
';
55 55555555555555
'39
7
2
7
,
*75 *75
Figure 3-13 Example: Optimized DP cycle with T
MAPC
: T
DP
= 1 : 1
T
MAPC
Master application cycle: Position control cycle clock
T
DP
DP cycle time: DP cycle time
T
DX
Data exchange time: Total transfer time for all DP slaves
T
M
Master time: Offset of the start time for NC position control
T
I
Input time: Time of the actual value acquisition. The actual values are
transferred to the DP master in the next DP cycle.
T
O
Output time: Time of the setpoint acceptance. The setpoints were generated by
the DP master application in the previous DP cycle.
GC Global control message frame (broadcast message frame) for cyclic
synchronization of the equidistance between the DP master and DP slaves
R Processing time for speed or position controller
Dx User data exchange between the DP master and DP slaves
DPV1 After cyclic communication, an acyclic service is sent, if the token holding time
T
TH
has not yet been exceeded. T
TH
is calculated by the engineering system.
GTR GAP, TOKEN, RESERVE:
GAP: An attempt is made during GAP to accept new active stations.
TOKEN: The token passing is either to itself or other masters.
RESERVE: The reserve is used as an "Active break" for the station to send the
token to itself until the equidistant cycle expires.
① The actual values for the current DP-Cycle/position control cycle clock are
transferred from the DP slave drives to the NC position controller.
② The setpoints computed by the NC position controller are transferred to the DP
slave drives.
To Next Page
Loading...
Need help?
General
