LOGO! functions

4.4 Special functions list - SF

Setting the Par parameter (0BA7)

View in programming mode (example):

%5 %\WHLQGH[  4 6

5HWHQWLYLW\HQDEOHG

<RXFDQVHOHFWDE\WHLQGH[IURPWR

<RXFDQVHOHFWDELWQXPEHUIURPWR

The view above indicates that the configured shift register bit is S4.8.

This special function is not available in parameter assignment mode.

4.4.28Analog multiplexer

Short description

This special function outputs one of four predefined analog values or 0 at the analog output.

Symbol in LOGO!

Wiring

Description

(Q

 

 

 

 

 

 

 

 

Input En

A change in status from 0 to 1 at input En (Enable)

6

 

 

 

 

 

 

 

 

 

switches a parameterized analog value to the output

 

$ᇄ

 

$4

 

AQ, depending on the value of S1 and S2.

6

 

 

 

 

 

 

 

 

 

 

 

 

 

3DU

 

 

 

 

 

 

 

 

Inputs S1 and S2

S1 and S2 (selectors) for selecting the analog value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to be issued.

 

 

 

 

 

 

 

 

 

 

• S1 = 0 and S2 = 0:

 

 

 

 

 

 

 

 

 

 

Value 1 is issued

 

 

 

 

 

 

 

 

 

 

• S1 = 0 and S2 = 1:

 

 

 

 

 

 

 

 

 

 

Value 2 is issued

 

 

 

 

 

 

 

 

 

 

• S1 = 1 and S2 = 0:

 

 

 

 

 

 

 

 

 

 

Value 3 is issued

 

 

 

 

 

 

 

 

 

 

• S1 = 1 and S2 = 1:

 

 

 

 

 

 

 

 

 

 

Value 4 is issued

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

V1...V4: Analog values that will be issued.

 

 

 

 

 

 

 

 

 

 

Range of values: -32768...+32767

 

 

 

 

 

 

 

 

 

 

p: Number of decimals

 

 

 

 

 

 

 

 

 

 

Range of values: 0, 1, 2, 3

 

 

 

 

 

 

 

 

 

Output AQ

This special function has an analog output. This

 

 

 

 

 

 

 

 

 

 

output can only be connected with the analog input of

 

 

 

 

 

 

 

 

 

 

a function, an analog flag or an analog output

 

 

 

 

 

 

 

 

 

 

connector (AQ1, AQ2).

 

 

 

 

 

 

 

 

 

 

Range of values for AQ:

 

 

 

 

 

 

 

 

 

 

-32768...+32767

 

LOGO!

248

Manual, 04/2011, A5E03556174-01

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Page 248
Image 248
Siemens 6ED1050-1AA00-0BE8 manual Analog multiplexer, Setting the Par parameter 0BA7
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