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Operating mode
This parameter is used to set the arithmetic operation required.
Parameter
Function, parameterization in the function block
s
Addition of summand value
ADD
Summand >I2
Subtraction of minuend
SUB
Subtrahend
Multiplication of factor
MUL
Division of dividend
DIV
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
•
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.
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
>I1
plus
>I1
minus
>I2
>I1
by factor
>I2
>I1
by divisor
>I2
QV:
...
5 Function blocks
5.2 AR, Arithmetic
141
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