Siemens SINUMERIK 840Di Manual page 239

06.03
Activation of the
equidistant
DP cycle
Dialog:
Start
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
If you double-click on a DP slave 611U in the station window, the dialog box:
"DP slave properties" opens.
We recommend activating the equidistant DP cycle for all DP slaves 611U by
activating the equidistant DP cycle within the selected DP slave 611U and finally
adjusting.
During the adjustment, all:
S
DP slave properties
displayed in the tab: Clock Synchronization
are transferred to all DP slaves of the same type in the configuration, here DP
slave 611U.
Dialog: DP Slave Properties
Tab: Clock synchronization
Optional field: "Synchronize drive to equidistant DP cycle"
Button: "Adjust"
DP slave properties
General Configuration Clock synchronization
Synchronize drive to equidistant DP cycle
Network settings in msec:
Equidistant bus cycle activated
Equidistant DP cycle:
4.000
Master application cycle
1.000
[msec]:
DP cycle [msec]: 1.000
Actual-value sensing [msec]: 0.125
Setpoint acceptance [msec]:
0.500
Adjust
OK
Fig. 7-9 Enabled equidistant DP cycle
Notice
If there are different types of equidistant DP slaves in a S7 project, e.g. different
SIMODRIVE drives, ADI4, etc., the following steps:
1. Synchronize drive to equidistant DP cycle
2. Adjust
must be performed for each type of DP slave first before you can go on to set
the other parameters.
7 PROFIBUS DP Communication
7.3 SIMATIC S7 project
Cyclic portion of equidistant master
Factor
Basic time [msec]
= 1 x 1.000
Factor
Basic time [msec]
x
= 8 0.125
Factor
Basic time [msec]
x
= 1 0.125
Factor
Basic time [msec]
x
= 4 0.125
Cancel
0.367
Help
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