Data types
TwinCAT data type | Memory requirement | LabVIEW™ data type |
|---|---|---|
BIT | 1 bit | LabVIEW™ Boolean |
BOOL | 8 bits | LabVIEW™ Boolean |
BYTE/USINT | 8 bits | LabVIEW™ U8 |
WORD/UINT | 16 bits | LabVIEW™ U16 |
DWORD/UDINT | 32 bits | LabVIEW™ U32 |
ULINT | 64 bits | LabVIEW™ U64 |
SINT | 8 bits | LabVIEW™ I8 |
INT | 16 bits | LabVIEW™ I16 |
DINT | 32 bits | LabVIEW™ I32 |
LINT | 64 bits | LabVIEW™ I64 |
REAL | 32 bits | LabVIEW™ Single (sgl) |
LREAL | 64 bits | LabVIEW™ Double (dbl) |
String | - | LabVIEW™ String |
TIME | - | LabVIEW™ Timestamp |
DATE | - | LabVIEW™ Timestamp |
TOD/ TIME_OF_DAY | - | LabVIEW™ Timestamp |
DT/DATE_AND_TIME | - | LabVIEW™ Timestamp |
DCTIME | - | LabVIEW™ Timestamp |
FILETIME | - | LabVIEW™ Timestamp |
LTIME | - | LabVIEW™ Timestamp |
ARRAY | - | LabVIEW™ ARRAY |
STRUCT | - | LabVIEW™ Cluster |
Enum | 16 bits (Default) | LabVIEW™ Enum |
Display of timestamps in UTC time format
TwinCAT and LabVIEW™ generally measure time in Coordinated Universal Time (UTC). As soon as a timestamp is displayed in the LabVIEW™ front panels, it is converted to the local time by default.
- If you want to display the Coordinated Universal Time (UTC) instead of the local time, you can format it as follows via the control settings:
- 1. Open Time Stamp Properties.
- 2. Open the Display Format tab.
- 3. Activate Advanced editing mode.
- 4. To use the UTC time format, insert a ^ in the default format string before the time container.
- The format string then looks like this, for example:
%^<%X
%x>T
