Bit Access
You can directly specify a bit within an integer variable in expressions and diagrams using this notation:
Variable.BitNo
Where:
Variable: is the name of an integer variable.
BitNo: is the number of the bit in the integer.
The variable can have one of these data types:
|
Bits |
Data Type |
|---|---|
|
8-bits from .0 to .7 |
BYTE, SINT, USINT |
|
16-bits from .0 to .15 |
INT, UINT, DWORD |
|
32-bits from .0 to 31 |
DINT, DWORD, UDINT |
|
64-bits from .0 to .63 |
LINT, LWORD, ULINT |
0 (zero) always represents the less significant bit.




