Supplementary Conditions - Siemens SINUMERIK 840D sl Function Manual

MDS
DDS per MDS
DB31, ... DBX21.x
DB31, ... DBX93.x
DB31, ... DBX130.x
Figure 2-11
2.3.6.7

Supplementary conditions

Variable number of drive data sets for the "last" motor data set
The "last" motor data set is the motor data set with the highest number or index.
Generally, the same number of drive data sets is created for each motor data set (number of
"DDS per MDS") in the drive. Only the "last" motor data set can differ from this; any number
(a) of drive data sets can be parameterized:
1 ≤ a ≤ (number of "DDS per MDS")
Example
4 motor data sets (MDS) and 8 drive data sets (DDS) per motor data set (DDS per MDS) are
to be parameterized. This corresponds to "No.": 22 of the possible data set combination
displayed in the Figure 2-11 Principle of the motor/drive data set switchover (Page 69):
● Motor data sets: MDS[ 0 ], MDS[ 1 ], ... MDS[ 3 ] ("last" motor data set)
● Drive data sets per motor data set: DDS[ 0 ] ... DDS[ 7 ]
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Number of motor data sets
Number of drive data sets per motor data set
Request interface
Display interface
Formatting interface
Principle of the motor/drive data set switchover
A2: Various NC/PLC interface signals and functions
2.3 Functions
69