Siemens 6ED1050-1AA00-0BE8 Manual De Usuario

LOGO! functions

4.4 Special functions list - SF

LOGO!

216

Manual, 04/2011, A5E03556174-01

4.4.19

Analog differential trigger

Short description

The output is set and reset depending on a configurable threshold and a differential value.

Symbol in LOGO!

Wiring

Description

Input Ax

Input Ax is one of the following analog signals:
•

AI1 to AI8 (*)

•

AM1 to AM6 (if 0BA6) or AM1 to AM16 (if 0BA7)

•

NAI1 to NAI32 (if 0BA7)

•

AQ1 to AQ2

•

NAQ1 to NAQ16 (if 0BA7)

•

Block number of a function with analog output

Parameter

A: Gain

Range of values: ±10.00
B: Zero offset

Range of values: ±10,000
On: On/Off threshold

Range of values: ±20,000
Δ: Differential value for calculating the off parameter

Range of values: ±20,000
p: Number of decimals

Range of values: 0, 1, 2, 3

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Output Q

Q is set or reset, depending on the threshold and

difference values.

* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).

Gain and offset parameters

Please note the information on gain and offset parameters in topic "Calculating the gain and

Parameter p (number of decimals)

Applies only to the display of On, Off and Ax values in a message text.

Timing diagram A: Function with negative difference Δ

2II 2Q˂