Hi,
Do you have a copy of the ASTM E1381-91 document? If so, then implementing
the protocol shouldn't be too hard. If not, then that's the place to start.
Here is a link that shows the details:
http://www.jahis.jp/english/other-in...n/topics05.htm. This protocol
is fairly complex, so be prepared to spend some time developing and testing
the code. I doubt that you will find any freely available.
I've worked with dozens of protocols, but not with this specific one.
However, I do show the general approach to creating code that implements
several different protocols in my book (see below).
Dick
--
Richard Grier (Microsoft Visual Basic MVP)
See
www.hardandsoftware.net for contact information.
Author of Visual Basic Programmer's Guide to Serial Communications, 4th
Edition ISBN 1-890422-28-2 (391 pages) published July 2004. See
www.mabry.com/vbpgser4 to order.
