User`s guide

Function Blocks
Function Block Categories and Types
Release E UMC800 Control Builder User’s Guide 75
1/01
Calculations category
Table 22 lists the function block types in the Calculations Category.
Table 22 Calculations category function block types
Block Type Description Graphic Form
CMPR Comparison Calculation - Compares the value of X input to
the value of Y input and generates separate digital outputs to
indicate greater than, equal, or less than status.
DCMP Deviation Compare - Compares up to 6 analog inputs to a +
and - deviation set around a 7th Input reference value and
sets an output true or false based on the comparison result.
ABS Absolute Value - The output is the absolute value for a
single analog variable input.
SQRT Square Root - The output is the square root value of a single
analog variable input.
MSF Mass Flow Calculation - Calculates gas mass flow (OUT)
from differential pressure, temperature, and for pressure input
values.