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

LOGO! functions 

 

4.4 Special functions list - SF 

 

LOGO! 

268

 

Manual, 04/2011, A5E03556174-01 

Setting the Par parameter 

The following illustration shows the view in programming mode that corresponds to the first 

example (12 + (6 / 3)) - 1: 

35 0

23

9

%

35 +

23

9

%

35 /

23

9

%

S

4HQൺ

9

%

3UHVV

ႱႧ

3UHVV

ႱႧ

3UHVV

ႱႧ

 

Use the   and   keys to navigate between the operand value, operator, and operation 

priority. To change a value, use the   and   keys to scroll through value choices for each 

value. Use the   key to navigate from one screen to the previous screen when the cursor is 

on the V1..V4 line, and the   key to navigate to the next screen from the PR1..PR3 line. Use 

the OK key to accept changes. 

4.4.33 

Mathematic instruction error detection 

Short description 

The mathematic instruction error detection block sets an output if an error has occurred in 

the referenced Mathematic instruction (Page 265) function block.          

 

Symbol in LOGO! 

Wiring 

Description 

Input En 

A change in the status from 0 to 1 at input En 

(Enable) enables the mathematic instruction error 

detection block.  

Input R 

A signal at input R resets the output. 

Parameter 

MathBN: block number of a mathematic instruction 
Err: ZD: Divide by 0 error 

 OF: Overflow error 

 ZD/OF: (Divide by 0 error) OR  

 (Overflow error) 
AutoRst: Reset the output before the next execution 

of the mathematic instruction error function block. Y = 

yes; N = no 

 
(ᇄ

4

(Q
5
3DU

 

Output Q 

Q is set high if the error to detect occurred in the last 

execution referenced mathematic instruction function 

block