Variable type (P-EXTV-00003)

P-EXTV-00003

Type of external variable

Description

The identifier indicates the data type of the variable. Besides elementary data types (SGN08, ..., REAL64) and the STRING data type, a user-defined variable type can also be defined here (P-EXTV-00015).

Parameter

var[i].type

Data type

STRING

Data range

BOOLEAN, SGN08, UNS08, SGN16, UNS16, SGN32; UNS32, REAL64, STRING, VSTRING or user-defined

Dimension

----

Default value

UNS32

Remarks

With automatic address assignment, the parameter defines implicitly the address of the next variable. This considers the computer architecture and the alignment strategies saved in the controller.

Read or write access to a variable always takes place using the saved type irrespective of manual or automatic address assignment.