Mapping of the datatypes

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All variables in zenon are derived from IEC data types. The following table compares the IEC datatypes with the datatypes of the PLC.

Mapping of the data types from the PLC to zenon data types

PLC	zenon	Data type
BOOLEAN	BOOL	8
INT8	SINT	10
INT8U	USINT	9
INT16	INT	1
INT16U	UINT	2
INT24	DINT	3
INT24U	UDINT	4
INT32	DINT	3
INT32U	UDINT	4
INT128	DINT	3
FLOAT32	REAL	5
FLOAT64	LREAL	6
ENUMERATED	INT	1
CODED ENUM	UDINT	4
OCTET STRING	STRING	12
VISIBLE STRING	STRING	12
UNICODE STRING	WSTRING	21
PACKED LIST	UDINT	4
TIMESTAMP	LREAL	6
EntryTime	LREAL	6
TriggerConditions	UDINT	4

Data type

The property "Datenart" is the internal numerical name of the data type. It is also used for the extended DBF import/export of the variables.