User`s guide

4.5.4 DIOGetCurrentDOByte
Returns byte data from the specified I/O port of a device. The port is specified by port number
which ranges from 0 to the maximum number of ports provided by the device. For example,
PCL-722 has up to 18 ports digital output. The port number of the board is from 0 to 17.
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.
State Byte data read from the 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