Siemens SPS starter kit 6ED1057-3BA10-0AA8 6ED1057-3BA10-0AA8 Scheda Tecnica
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Codici prodotto
6ED1057-3BA10-0AA8
LOGO! functions
4.4 Special functions list - SF
LOGO!
Manual, 06/2014, A5E33039675
Manual, 06/2014, A5E33039675
149
● Retentive on-delay (Page 144) (current time Ta)
● Wiping relay(pulse output) (Page 146) (current time Ta)
● Edge triggered wiping relay (current time Ta)
● Asynchronous pulse generator (Page 150) (current time Ta)
● Stairway light switch (Page 154) (current time Ta)
● Multiple function switch (Page 156) (current time Ta)
● Stopwatch (Page 171) (actual value AQ)
● Threshold trigger (Page 180) (actual value Fre)
Select the required function by the block number. The timebase is configurable. For
● Wiping relay(pulse output) (Page 146) (current time Ta)
● Edge triggered wiping relay (current time Ta)
● Asynchronous pulse generator (Page 150) (current time Ta)
● Stairway light switch (Page 154) (current time Ta)
● Multiple function switch (Page 156) (current time Ta)
● Stopwatch (Page 171) (actual value AQ)
● Threshold trigger (Page 180) (actual value Fre)
Select the required function by the block number. The timebase is configurable. For
information on valid ranges and parameter defaults, refer to the On-delay (Page 136) topic.
Timing diagram A
Timing diagram B
Functional description
A 0 to 1 transition at input Trg triggers the time T
L
(Time Low). After the time T
L
has expired,
output Q is set for the duration of T
H
(Time High).
If there is a further 0 to 1 transition (retriggering pulse) at input Trg before the preset time (T
L
+ T
H
) has expired, T
a
is reset and the pulse/pause cycle is restarted.
If the block is retentive, LOGO! resets output Q and the expired time to the values before a
power failure; if the block is not retentive, LOGO! resets output Q and the expired time to
defaults after a power failure.