Download  Print this page

Advertisement

LOGO! functions
4.4 Special functions list - SF
Parameters T
and T
H
Note the preset values for the parameters T
The on-delay and off-delay times for parameters T
of another, already-configured function. You can use the actual values of the following
functions:
● Analog comparator (Page 165) (actual value Ax - Ay)
● Analog threshold trigger (Page 160) (actual value Ax)
● Analog amplifier (Page 173) (actual value Ax)
● Analog multiplexer (Page 194) (actual value AQ)
● Analog ramp (Page 197) (actual value AQ)
● Analog math (Page 209) (actual value AQ)
● PI controller (Page 201) (actual value AQ)
● Up/down counter (Page 151) (actual value Cnt)
Select the required function by the block number. The timebase is configurable. For
information on valid timebase ranges and parameter preset, refer to the On-delay
(Page 123).
Timing diagram
Functional description
The time T
If the status at input Trg is 1 at least for the duration of the time T
expiration of the time T
The time is reset when the signal at input Trg is reset to 0 before the time T
A 1 to 0 transition at input Trg triggers the time T
If the status at input Trg is 0 at least for the duration of the signal T
expiration of the time T
The time is reset when the signal at input Trg changes to 1 again before the time T
expired.
If retentivity is not set, output Q and the expired time are reset after a power failure.
128
L
is triggered with a 0 to 1 transition at input Trg.
H
(the output follows the input with on-delay).
H
(the output follows the input with off-delay).
L
and T
in topic Time response (Page 115).
H
L
and T
can be based on the actual value
H
L
, the output is set to 1 on
H
.
L
L
Manual, 10/2017, A5E01248535-AA
has expired.
H
, the output is set to 0 on
has
L
LOGO!

Advertisement

   Also See for Siemens LOGO!

   Related Manuals for Siemens LOGO!

Comments to this Manuals

Symbols: 0
Latest comments: