Measurement Computing UL for NI LabVIEW - Manual (Page 11)

Overview of the Universal Library VIs Digital I/O VIs
Digital I/O VIs
To gain full access to the power of these digital I/O VIs, you should refer to the data sheet for the type of
digital interface you are using:
ƒ the 82C55 data sheet (available on our web site at
www.mccdaq.com/PDFmanuals/82C55.pdf )
ƒ the 8536 data sheet (not available on our web site)
DBitIn.VI - Digital bit input.
Reads a single bit from a digital input port.
DBitOut.VI - Digital bit output.
Sets a single bit on a digital output port.
DCfgBit.VI - Configures a specific digital bit within a digital port.
Configures a specific bit within a digital port as an input or an output.
DCfgPort.VI - Configures digital outputs.
Configures a digital port as an input or an output.
DIn.VI - Digital input.
Reads a specified digital input port.
DInScBg.VI - Digital multiple byte or word input in the background.
Reads a specified number of bytes or words from a digital input port at a specified rate.
DInScFg.VI - Digital multiple byte or word input in the foreground.
Reads a specified number of bytes or words from a digital input port at a specified rate.
DOut.VI - Digital output.
Writes a byte or word to a digital output port.
DOutScBg.VI - Digital multiple byte or word output in the background.
Writes a series of bytes or words to a digital output port at a specified rate.
DOutScFg.VI - Digital multiple byte or word output in the foreground.
Writes a series of bytes or words to a digital output port at a specified rate.
Streamer file VIs
These VIs create, fill, and read "streamer" files. These VIs also let you collect and store large amounts of
analog input data. The amount of data is limited only by available disk space.
FileAInS.VI - Transfer analog input data directly to file.
Very similar to AInScFg.VI, except that data is stored in a file instead of an array.
FilePret.VI - Pre-triggered analog input to a file.
Very similar to APretrFg.VI, except that data is stored in a file instead of an array.
FileInfo.VI - Reads "streamer" file information.
Each streamer file contains information about how much data is in the file and the conditions under which it
was collected (sampling rate, channels, etc.). This VI reads that information.
FileRead.VI - Reads data from a "streamer" file.
Reads a selected number of data points from a streamer file into an array.
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