Download  Print this page

Advertisement

Parameters L1, L2
The analog values for the parameters L1 and L2 can be derived from another already-
programmed 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 (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. For information on parameter defaults,
refer to the On-delay (Page 123) topic.
Parameter p (number of decimals)
Applies only to the AQ, L1, L2, MaxL, StSp and Rate values displayed in a message text.
Timing diagram for AQ
Functional description
If the input En is set, then the function sets the current level to StSp + Offset "B" for 100 ms.
Then, depending on the connection of Sel, the function runs from the level StSp + Offset "B"
to either level 1 or level 2 at the acceleration set in Rate.
If the input St is set, the function runs to a level of StSp + Offset "B" at the acceleration set in
Rate. Then the function holds the level at StSp + Offset "B" for 100 ms. After 100 ms, the
level is set to Offset "B". The scaled value (output AQ) is 0.
LOGO!
Manual, 10/2017, A5E01248535-AA
LOGO! functions
4.4 Special functions list - SF
199

Advertisement

   Also See for Siemens LOGO!

   Related Manuals for Siemens LOGO!

Comments to this Manuals

Symbols: 0
Latest comments: