User`s guide
4.5.10 ReadPortByte
Reads a 8-bit of byte data from the specified I/O port. The port address is an I/O port address on the
PC.
Input:
Data type Parameter Description
DevHandle The handler id of the device specified by DevNum as
assigned by the LabVIEW program..
Port The port number of specified device
error in A cluster containing error information, such as the
status, code, and source elements that is passed from
a previous linked VI.
Output:
Data type
Parameter Description
DevHandle The handler id of the device specified by DevNum as
assigned by the LabVIEW program..
Va lu e Data value read from specified port
error out A cluster containing error information. If error in
indicated an error, the status, code, and source
elements of error out have the same values as the
corresponding elements of error in