[Scilab-users] help for RS232 programming

[Philipp Mühlmann]

Dear all,


using the "Serial Communication Toolbox" I try to Access a Controller via a
RS232 Interface.



Now, since I am a very beginner in this field I could use some help.


What I do:


h = openserial(1," 9600,n,8,1");


If I look at "h", this is what I get:

h = file15873640

I understand this is a string of a so called Serial port file...so I assume
that a connection is established.


--> What does this mean?
--> How to Display the Content of this file?


Now, once I have connetion established I want to communicate with the
controllr.

Example: I want to send a command with following command structure:



       <address>_<command>_<Parameter>_<value>§

*A_r_120_0

*      = for Synchronisation
A     = address
r      = command for reading
120  = Parameter for actual sensor value

I try:

ret = writeserial(h, " *A_r_120_0 " );

result = readsearial(h);


I get:

ret = 0   // seems to be OK

result = ?????


--> What does this mean?


I use:

Scilab 5.5.1 on Win 7  64bit.



Thank you,
Philipp




-- 
In Kanada is' ka' na' da. Sonst wär' Kanada Jemanda.

There we have the salad.
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