Overview Of The Interfaces - Siemens SINUMERIK 840D sl Function Manual

A2: Various NC/PLC interface signals and functions
2.3 Functions
Interfaces of the motor data sets (MDS)
Relevant bit positions of the request and display interfaces:
● DB31, ... DBX21.1 / DBX93.1
– DB31, ... DBX21.1 / DBX93.1 == 0 ⇒ 1st motor data set MDS[0]
– DB31, ... DBX21.1 / DBX93.1 == 1 ⇒ 2nd motor data set MDS[1])
Invalid bit positions (MDS/DDS)
Invalid bit positions of the request and display interfaces:
● DB31, ... DBX21.1 / DBX93.2 == 0
● DB31, ... DBX21.1 / DBX93.3 == 0
● DB31, ... DBX21.1 / DBX93.4 == 0
See also
Overview of the interfaces (Page 68)
2.3.6.6

Overview of the interfaces

Table 2-1
Number of MDS (motors)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
68
Configurable MDS / DDS combinations
Number of DDS (drives) per MDS
1 ... 32
1, 2, 4, 8, 16
1, 2, 4, 8
1, 2, 4, 8
1, 2, 4
1, 2, 4
1, 2, 4
1, 2, 4
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions