Acs - Arccosine - Siemens 353 User Manual

UM353-1B

3.2.2 ACS - ARCCOSINE

ACS_ function blocks accept an input between -1.0 and 1.0. Each
provides an output signal in radians of which the input is the
cosine.
X
.
Input X
3.2.3 ADD_ - Addition
ADD_ function blocks perform arithmetic addition on
three input signals. Any unused input will be set to 0.0
and will have no affect on the output.
All inputs should have the same engineering units. If
units are not consistent, an SCL (Scaler) function block
can be used or an alternative is to use a MATH function
block that has built-in scaling functions.
A
+
B
C
.
BLOCK DIAGRAM
April 2012
ACOS (X)
Output 1
BLOCK DIAGRAM
+
+
Rev 2
ARCCOSINE
Input X
O1
I N P U
.
ADDITION
ADD_
Input A A
ADDITION
B
Input B
Input C C
I N P U T A
INPUT A
I N P U T B
INPUT B
I N P U T C
INPUT C
E S N Exec. Seq. No.
O1
.
Function Blocks
ACS
ESN = 000
X
O1 Output 1
O = ACOS (X)
1
T X
INPUT X ..............
loop tag.block tag.output
E S N
Exec. Seq. No. ..................... 000 to 250
ESN = 000
O1
Output 1
.........
(H) loop tag.block tag.output (null)
.........
(H) loop tag.block tag.output (null)
.........
loop tag.block tag.output (null)
(H)
............... 001 to 250
(H)
(null)
(000)
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