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LOGO! functions

4.4 Special functions list - SF

If your LOGO! is a LOGO! 0BA7, you can additionally use the actual values of the following functions:

●Analog filter (0BA7 only) (Page 271) (actual value AQ)

●Average value (0BA7 only) (Page 276) (actual value AQ)

●Max/Min (0BA7 only) (Page 273) (actual value AQ)

●On-delay(Page 160) (current time Ta)

●Off-delay(Page 164) (current time Ta)

●On-/off-delay(Page 166) (current time Ta)

●Retentive on-delay(Page 168) (current time Ta)

●Wiping relay(pulse output) (Page 170) (current time Ta)

●Edge triggered wiping relay (Page 172) (current time Ta)

●Asynchronous pulse generator (Page 175) (current time Ta)

●Stairway light switch (Page 179) (current time Ta)

●Multiple function switch (current time Ta)

●Stopwatch (Page 198) (actual value AQ)

●Threshold trigger (Page 210) (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 160) topic.

Timing diagram

7UJ
7/	7/
4
	7/
7DLVEXV\	7
	7

Functional description

A 0 to 1 transition at input Trg sets output Q.

If output Q = 0, and input Trg is set hi at least for the duration of TL, the permanent lighting function is enabled and output Q is set accordingly.

The off-delay T is triggered when input Trg returns to 0 before TL has expired. Output Q is reset when Ta = T.

You can output an off-warning signal prior to the expiration of the off-delay time (T - T!) that resets Q for the duration of the prewarning time period T!L. A subsequent signal at Trg always resets T and the output Q.

If retentivity is not set, output Q and the expired time are reset after a power failure.

LOGO!
Manual, 04/2011, A5E03556174-01	183

6ED1050-1AA00-0BE8 specifications

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Siemens 6ED1050-1AA00-0BE8 manual 183

Models: 6ED1050-1AA00-0BE8

Timing diagram

Functional description

6ED1050-1AA00-0BE8 specifications