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CIMPLICITY Machine Edition
Variables
16 CIMPLICITY Logic Developer - PLC Version 4.00 GFK-1918D
2
VARIABLES
A variable (sometimes called a tag) is a named storage space for data values.
All variables in a project are displayed in the Variables tab of the Navigator. A
variable represents a memory location in the target PLC. Each variable must be
mapped to a reference address (for example, %R00001) for all PLC families except
PACSystems™ RX7i. On a PACSystems™ RX7i, if you don’t map to a specific
reference address, it is considered a symbolic variable. Machine Edition handles
all the mapping for you in a special portion of PACSystems™ user space memory.
The reference address and other properties of a variable, such as data type, are
configured in the Inspector.
Arrays and compound structure variables are supported by Machine Edition.
Variable definitions can be imported from and exported to a variety of file types.
You can edit your variables in a spreadsheet and then import them. Logic
Developer - PLC variables, that is, variables used on GE Fanuc PLC and
PACSystems™ targets, can be viewed in CIMPLICITY View.
The following diagram
shows the Inspector displaying a typical set of variable properties.
Navigator: Variables tab