Help Me On These Labview Programmings...

Question

Hey all..
I don't know exactly where i should post this but moving on, I actually got a few things to enquire....
Im very virgin to this LabView thing so I kinda need your help..
1. How to datalog ecg signals acquired from a DAQ board?
2. How do i save the waveform to a binary file?
3. And how do i read it back?
is there anybody that can help me with the programming...
HELP MEEEE..
Thnks in advance!

Answer 1

Your datalog types are not matched.
First, you also need to wire the datalog type when you open the file in the writer (just create a constant on the cluster leading to the write node, place it next to the file open, and wire it to the type input.)
You need to read it as the same type!
You are writing records as a cluster containing a cluster of 2 strings and a 2D DBL array.
You are trying to read it as a cluster containing a simple string and a 1D SGL array.
You cannot write it as one thing, then read it as something else! You need to wire the same type to the type input in your reader.
(Since in the writer you are denying writing, you need to open the same file read-only in the reader if you want to run both at the same time.)
Attached is a 1 minute modification, please go from there. It's still pretty ugly, but actually works.
I hope these tips will help you.
Message Edited by altenbach on 08-29-2005 08:29 PM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
write_logger2MOD.vi ‏249 KB
read_logger2MOD.vi ‏44 KB