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

7.9.4

Configuring Timer DQ operating mode

Timer DQ
Timer DQ operating mode allows you to output up to two edges per application cycle (for
example OB 91, OB 6x) at a specific time, for example, for use as a cam output.
1. Select the Timer DQ operating mode for the required channel.
Figure 7-15 Mode of operation: Timer DQ
Inversion
You can invert the 24 V signal to adjust it to your process. By default, the signal is not
inverted.
High-speed output
If you select the high-speed output option, the digital output is switched alternately to
24 V DC and ground.
Advantages of the high-speed output:
● Extremely steep edges (output delay in the 1 μs range)
● Extremely high switching frequencies
● Maximum switching precision, for example, for use as a cam output
Assigning the output cam technology object
The output cam technology object must always be assigned to another technology object
whose position is evaluated.
You can assign the output cam technology object to the following technology objects:
● Synchronous axis
● Positioning axis
● External encoder
You can assign exactly one axis or one external encoder to the output cam.
You can assign multiple output cams to one axis or one external encoder.
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
7.9 Configuration of digital inputs/outputs (X142)
Configuring
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