Mapping of the datatypes |
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S7TCP32 -> Creating variables -> Driver objects and datatypes -> Mapping of the datatypes |
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Mapping of the datatypes |
|
S7TCP32 -> Creating variables -> Driver objects and datatypes -> 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 |
|---|---|---|
|
BOOL |
BOOL |
8 |
|
SINT |
SINT |
10 |
|
BYTE |
USINT |
9 |
|
INT |
INT |
1 |
|
WORD |
UINT |
2 |
|
DINT |
DINT |
3 |
|
DWORD |
UDINT |
4 |
|
DATE_AND_TIME |
DATE_AND_TIME |
20 |
|
REAL |
REAL |
5 |
|
STRING |
STRING |
12 |
The channel type or the data type is used in the driver for mapping the correct object types or data types. This information is also used for the "Extended variable import/export" via DBF files.
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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. |