Display Interface; Example - Siemens SINUMERIK 840D sl Function Manual

Motor and drive data sets in the drive
The number of motor data sets (MDS) and drive data sets (DDS) in the drive can be determined
using the following drive parameters:
● p0130 (number of motor data sets)
● p0180 (number drive data sets)
Motor data set (MDS) for main spindle drives
For main spindle drives, the following association applies:
● MDS[ 0 ] → star operation
● MDS[ 1 ] → delta operation
2.3.6.4

Display interface

The active motor data set (MDS) and drive data set (DDS) are displayed via the interface:
DB31, ... DBX93.0 - .4 == <MDS / DDS index>
Value range and formatting are identical to the request interface (Page 66).
2.3.6.5

Example

Two motor data sets (MDS) and two drive data sets (DDS) are available in the drive for each
motor data set. This corresponds to "No.": 9 of the possible data set combinations displayed
in the Figure 2-11 Principle of the motor/drive data set switchover (Page 69).
Format
Bit positions for drive data set switchover (DDS):
● DB31, ... DBX130.0 == 1
Bit positions for motor data set switchover (MDS):
● DB31, ... DBX130.1 == 0
Invalid bit positions:
● DB31, ... DBX130.2 == 0
● DB31, ... DBX130.3 == 0
● DB31, ... DBX130.4 == 0
Interfaces of the drive data sets (DDS)
Relevant bit positions of the request and display interfaces:
● DB31, ... DBX21.0 / DBX93.0
– DB31, ... DBX21.0 / DBX93.0 == 0 ⇒ 1st drive data set DDS[0]
– DB31, ... DBX21.0 / DBX93.0 == 1 ⇒ 2nd drive data set DDS[1])
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
A2: Various NC/PLC interface signals and functions
2.3 Functions
67