owRead (Function)

This function will read a single byte from the 1-Wire net. A device must first have been selected with owAccess. If not, then data will be received as 16#FF as if connection to the device has been lost.

Input:

None.

Output:

data : SINT

Data received.

Returns: INT

Declaration:

FUNCTION owRead : INT;
VAR_INPUT
  data : ACCESS SINT;
END_VAR

Example:

Please see the "Examples - Generic OneWire Example"