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5 Function blocks
5.2 AR, Arithmetic
Control Relay easy800
11/11 MN04902001Z-EN
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141
Operating mode
This parameter is used to set the arithmetic operation required.
The factory setting of this parameter is ADD.
Inputs
I1 and I2: The signals present at the inputs I1 and I2 are associated with the
operation set as the operating mode.
You can assign the following operands to function block inputs I1 and I2:
•
Constant.
•
Markers MD, MW, MB.
•
Analog inputs IA01 to IA04:
•
IA01: Terminal I7.
•
IA02: Terminal I8.
•
IA03: Terminal I11.
•
IA04: Terminal I12.
•
Analog output QA01.
•
Output
…
QV of a different function block.
Output
The output provides the calculation result as an integer. You can assign the
following operands to output
…
QV:
•
Analog output QA01
•
Markers MD, MW, MB and double word inputs of other function blocks.
Function of the function block
The values present at the inputs I1 and I2 are associated with the arithmetic
operation set as the mode.
If the calculation result exceeds the value range that can be represented, the
overflow signal contact CY closes and output QV contains the value of the
last valid operation.
When the function block is called for the first time, the value at output QV
equals zero.
Parameter
s
Function, parameterization in the function block
ADD
Addition of summand value
>I1
plus
Summand >I2
SUB
Subtraction of minuend
>I1
minus
Subtrahend
>I2
MUL
Multiplication of factor
>I1
by factor
>I2
DIV
Division of dividend
>I1
by divisor
>I2
Содержание easy800
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