Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Thu, 19 Aug 2010 17:09:56 +0200

Mark Rivers wrote:

Alan,
You may be able to do everything by just writing a streamDevice protocol

file. streamDevice can calculate a number of CRCs, it can build and

parse strings, etc. 
For example, here is a simple protocol file for an Alcatel pressure
gauge:
InTerminator = CR LF;
ENQ = \005;
ACK = \006;
readPressure {
   out "PR1\r\n";
   in "\${ACK}";
   out "\${ENQ}";
   in  "%*d, %f";
}

Mark,
StreamDevice understands ACK and ENQ.
readPressure {
   out "PR1\r\n";
   in ACK;
   out ENQ;
   in  "%*d, %f";
}

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System