Labview Vi to do Waveform Display of 8 - 16 bit Digital Input ??

[KTI]

Hi,

I'm currently using Labview 6 and an Advantech PCL-818HG DAQ card with
16-bit Digital I/O lines. I am interested in obtaining some advice on
getting to display the 16-bit digital inputs on a waveform charter vs time,
using labview. Advantech have provided some very basic examples of VIs but
not very comprehensive. My guess is that some one may have already build
something like this in the past, essentially a low-speed logic analyser, and
would like to share some info on getting the same for my DAQ card going.

Any info would be greatly appreciated

thanks in advance,

Mike

[Dennis_Knutson]

How about using the Digital Waveform Graph? Look at the shipping example called Simple Digital Waveform Graph to see if that's what you need to display the data.

[KTI]

Yes I have had a look at that example and used some of its components,
however there doesn't seem to be any timing information in the digital state
I obtain from the DAQ card. That is, the graph displays 16 "stationary"
points flickering at the rate of the digital input port signal, without a
time-base progression as would be expected for a time varying signal on a
CRO or logic-analyser. SO I have confirmation that something taken from the
16 digital inputs on the DAQ card makes it to the labview graph, however it
doesn't move with time as I explained above ...

Unfortunately, the example you mention does not have any time varying
digital signals as the source of the signal being used ... I thought there
might be something "out there" that may approximate th
e task I'm trying to
emulate more closely ...

thanks, Mike

"Dennis Knutson" wrote in message
news:506500000005000000C5EC0000-1042324653000@exchange.ni.com...
> How about using the Digital Waveform Graph? Look at the shipping
> example called Simple Digital Waveform Graph to see if that's what you
> need to display the data.