Configuring Oversampling Dq Operating Mode - Siemens SIMATIC S7-1500 System Manual

Further information
You can find more information on the Oversampling DI operating mode in Assignment of the
control interface (Page 191) and Assignment of the feedback interface (Page 192).
9.9.6

Configuring Oversampling DQ operating mode

Oversampling DQ
The Oversampling DQ function outputs 32 signal states at equal intervals per application
cycle (for example OB 91, OB 6x). Up to 32 edges are therefore possible per application cycle
at a given digital output. The 32 states are set over the control interface. The output occurs
synchronously with time T
Note
Isochronous mode
Oversampling requires isochronous mode.
The image below is an example of oversampling of DQ5:
T
APP
MSB
LSB
Figure 9-23
Note
Output frequency with the Oversampling function
The combination of application cycle and the 32-bit string output must not result in an
output frequency that exceeds the maximum switching frequency for the digital outputs.
SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD
(setpoint transfer).
O
Application cycle
Most significant bit
Least significant bit
Oversampling DQ
9.9 Configuration of digital inputs/outputs (X142)
Configuring
179