IFM CR0452 - 4.4 Variables

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ifm Programming Manual BasicDisplay CR0452 v03.02 05 / 2018
Configurations Variables
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4.4 Variables
Retain variables ......................................................................................................................................42
Network variables ...................................................................................................................................43
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In this chapter you will learn more about how to handle variables.
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The device supports the following types of variables:
Variable
Declaration place
Validity area
Memory behaviour
local
in the declaration part of the function
element (POU)
Only valid in the function element
(POU) where it was configured.
volatile
local retain
nonvolatile
global
In [Resources] > [Global Variables] >
[Globale_Variables]:
Valid in all function elements of this
CODESYS project.
volatile
global retain
nonvolatile
Network
In [Resources] > [Global Variables] >
declaration list
Values are available to all CODESYS
projects in the whole network if the
variable is contained in its declaration
lists.
volatile
Network retain
nonvolatile
→ CODESYS programming manual