Siemens SINUMERIK 840D sl Function Manual page 427

Examples of setpoint/actual-value routing
SINUMERIK 840D/810D with SIMODRIVE 611 digital
For machine axis "X1", the setpoint should be output digitally and actual values acquired on
drive module 4 (4th slot = index [3]).
The "logical drive number" of this module is 7.
Encoder number: 1, 2
Therefore, actual values are acquired via a direct and indirect measuring system.
Figure 2-2
Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Example of setpoint/actual-value routing
Detailed description
2.3 Setpoint /actual-value system
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