Siemens 6ED1050-1AA00-0BE8 manual Asynchronous pulse generator, Short description

LOGO! functions

4.4 Special functions list - SF

4.4.7Asynchronous pulse generator

Short description

The output pulse shape can be modified by reconfiguring the pulse/pause ratio.

Symbol in LOGO!		Wiring	Description
		Input En	You can use input EN to set and reset the
(Q			asynchronous pulse generator.
,QY	4	Input INV	Input INV can be used to invert the output signal of
3DU
			the active asynchronous pulse generator.
		Parameter	You can configure the pulse width TH and the
			interpulse width TL.
			Retentivity:
			/ = No retentivity
			R = The status is retentive.
		Output Q	Q is set and reset cyclically according to the
			pulse/pause ratio TH and TL.

Parameters TH and TL

Note the information on parameter T in topic Time response (Page 151)

The pulse width TH and the interpulse width TL can be provided by the actual value of another already-programmed function. You can use the actual values of the following functions:

●Analog comparator (Page 218) (actual value Ax – Ay)

●Analog threshold trigger (Page 213) (actual value Ax)

●Analog amplifier (Page 226) (actual value Ax)

●Analog multiplexer (Page 248) (actual value AQ)

●Analog ramp (Page 251) (actual value AQ)

●Mathematic instruction (Page 265) (actual value AQ)

●PI controller (Page 256) (actual value AQ)

●Up/down counter (Page 201) (actual value Cnt)

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)

LOGO!
Manual, 04/2011, A5E03556174-01	175