User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-58 ni.com
DIG_Out_Prt
Writes digital output data to the specified
digital port.
DIG_Prt_Config
Configures the specified port for direction
(input or output).
DIG_Prt_Status
Returns a status word indicating
the handshake status of the specified port.
Group Digital I/O Functions
The Group Digital I/O (
DIG_Block
,
DIG_Grp
,and
DIG_SCAN
) functions
perform handshaked I/O on groups of ports.
Refer to the NI-DAQ Function Reference Online Help file to determine
which functions your device supports.
DIG_Block_Check
Returns the number of items remaining to
be transferred after a
DIG_Block_In
or
DIG_Block_Out
call.
DIG_Block_Clear
Halts any ongoing asynchronous transfer,
allowing another transfer to be initiated.
DIG_Block_In
Initiates an asynchronous data transfer
from the specified group to memory.
DIG_Block_Out
Initiates an asynchronous data transfer
from memory to the specified group.
DIG_Block_PG_Config
Enables or disables the pattern generation
mode of buffered digital I/O.
DIG_Grp_Config
Configures the specified group for port
assignment, direction (input or output),
and size.
DIG_Grp_Mode
Configures the specified group for
handshake signal modes.
DIG_Grp_Status
Returns a status word indicating the
handshake status of the specified group.
DIG_In_Grp
Reads digital input data from the specified
digital group.