Stopwatch (Ta)
The value of “T” is set/modified in parameter mode. For
information about how to modify, refer to chapter 5.2.2,
please.
Select the required function by the block number. The time
base is configurable.
For information on valid time base ranges and parameter
pre-set, refer to chapter 4.4.1 the On-delay topic.
Timing diagram
Output Q is set to 1 momentarily with a 0 to 1 transition
at input Trg. At the 1 to 0 transition at input Trg, xLogic
retriggers the current time T, and the output remains set.
The output Q is reset to 0 when T
a
reaches the value
specified in T (T
a
=T) (off delay).
A one-shot at input Trg retriggers the time Ta.
You can reset the time Ta and the output via the input R
(Reset) before the time Ta has expired.
If retentivity is not set, output Q and the expired time are
reset after a power failure.
On/Off-Delay
Description of function
The on/off delay function is used to set an output after a
configured-on delay time and then reset it again upon
expiration of a second configured time.
T
H
is the on-delay time for the
output (output signal transition 0 to
1).
T
L
is the off-delay time for the
output (output signal transition 1 to
0).
Retentivity on = the status is
retentive in memory.
Q is switched on upon expiration of
a configured time TH if Trg is still
set. It is switched off again upon
expiration of the time TL and if Trg
has not been set again.
Parameter
The on-delay time and off-delay time set in parameter TH
and TL can be provided by the actual value of another
already-programmed function:
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