NI myDAQ User Guide
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© National Instruments
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Digital Writer
The NI ELVISmx Digital Writer updates the NI myDAQ digital lines with user-specified digital
patterns. NI ELVISmx Digital Writer groups the I/O lines into ports through which data can be
written. You can write a 4-bit pattern (0 to 3 or 4 to 7) or an 8-bit pattern (0 to 7). You can also
manually create a pattern or select predefined patterns, such as ramp, toggle, or walking 1s. This
instrument can control a port of four or eight consecutive lines and either continually output a
pattern or just perform a single write.
The output of the NI ELVISmx Digital Writer stays latched until either another pattern is
generated, the lines it is using are configured for read, or the power is cycled on the NI myDAQ.
Figure 19.
NI ELVISmx Digital Writer
