Neg Function Block; Figure 2-38 Neg Function Block Example - Honeywell UMC800 Reference Manual

Function Blocks

2.41 NEG Function Block

Description
The NEG label stands for Negate. This block is part of the Calculations category. It looks like this
graphically on the Control Builder.
Function
Convert a value to the opposite sign; i.e., +5 IN = –5 OUT, –6 IN = +6 OUT.
(Invert sign of an analog value.)
Input
X = positive or negative analog value
Output
Y = analog value of opposite sign from input
Block Properties
Double click on the function block to access the function block properties dialog box.
Block Order (Read Only)
You can change the assigned execution order number by selecting "Execution Order" in the "Configure"
menu and arrange the order to suit your control strategy.
Example
Figure 2-38 shows a Function Block Diagram using a NEG function block.
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Figure 2-38 NEG Function Block Example

Function Block Reference Guide 3/99