Siemens SIMATIC ET 200S Operating Instructions Manual page 282

2PULSE
5.3 Modes and Functions
Retriggering the Current Off-Delay
The 2PULSE starts a new off-delay on the negative edge on the digital input DI if:
Off-delay > pulse duration + interpulse period.
This deletes the current on-delay.
The digital output DO is only deleted if signal level 0 is present on the digital input DI longer
than the off-delay.
Figure 5-15 Retriggering the Current Off-Delay
Setting Times Using a Time Base
Use the assigned time base to select the resolution and the value range of the on-delay and
the off-delay.
Time base = 0.1 ms:
Time base = 1 ms:
Setting and Changing the On-Delay
You specify the on-delay as a value between 0 and 65535 in the parameters.
Assigned on-delay = time base x set numerical value
Using the factor for the on-delay, you can adjust the assigned time in your control program.
Set the factor between 0 and 255, with a weighting of 0.1:
On-delay = factor x 0.1 x assigned on-delay
If you change the on-delay factor, the new on-delay is activated with the next positive edge
on the digital input DI.
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You can set times from 0.2 ms to 6.5535 s with a resolution of 0.1 ms.
You can set times from 1 ms to 65.535 s with a resolution of 1 ms.
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05