Reading 16 & 22 bit signed integers using Scan From String

Last week it was suggested to use Scan from String which is a new tool for me and worked well to be able to read in ans parse strings.
After parsing the string, I'm having trouble converting the numbers into signed integers. The magnitude of some of the the outputs are unreasonably high then flip to near 0 then back up again.
Sample String (With spaces added)
$ 00 FCCE 00F6 3FFA93 0BFE 0C89 0DDB
Message Format:
Bytes 3-6 FCCE Heave acceleration bits 15-0 15-bit data, sign extended to 16 bits LSB : 0.001261g Sign “+” when accelerating upward
Bytes 11-16 3FFA93 FOG Gyro 1 bits 21-0 Bits 22-23 are always zero 22-bit signed data LSB = 97.275 µ˚/s Sign corresponds to MEMS axis
Sample Data File:
$00FCCE00F13FFD78100910A811FA
$00FCDF00F13FFCD3141614C71619
$00FCD600F33FFD20182118E61A39
$00FCDA00F73FFB3E1C2D1D051E58
$00FCDD00F73FFC32203921242278
$00FCDD00EF3FFDDC244525442697
The vi and a longer sample data file are uploaded to the ni ftp site. The zip file is named: IMU (9-15-08).zip. (Can't attach files to this message for some reason)
Any help appreciated.
Thanks,
Chris

Files uploaded to the "incoming" directory cannot be downloaded. That folder is intended to be used for submitting code to NI to investigate bugs and such things, not for forum posts.
What are you expecting FCCE to be? If the string is made of the characters "F", followed by the character "C", etc. (as opposed to the hex value of F, followed by the hex value of C, etc), then you can simply use Hexadecimal String to Number. Otherwise you need to use Type Cast.
Attachments:
Example_VI.png ‏5 KB

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Message Edited by YeungJohn on 11-20-2008 03:49 PM
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jvh75021 wrote:
There is no pre-existing bundle so I wonder if I can use a Cluster constant for the Input cluster. If so how is the cluster constant defined.
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Message Edited by Broken Arrow on 04-09-2010 03:22 PM
Richard

Reading 16 & 22 bit signed integers using Scan From String

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