Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Fri, 25 Apr 2014 11:43:38 +0200

On 23.04.2014 11:51, Mauro Giacchini wrote:

Dear All,
I'm working to make an IOC which has to read strings on rs232;
these strings are continuously sent from a box.
Up to now I'm working just only to
read the this string:

"KS,[counter],[encoder0],[encoder1],[encoder2],[encoder3]"

The IOC works very well to few hours,
after that it's (the communication) hangs-on (??)

Follow the protocol:
----------
InTerminator = LF;
#
ExtraInput = Ignore;
ReplyTimeout = 1000;
ReadTimeout = 1000;
LockTimeout = 5000;

Note that StreamDevice needs to poll the serial interface for new data

when using "I/O Intr". The default for PollPeriod is ReadTimeout, which

you set here to 1 second. That may be too long. Have it shorter than the

expected repetition rate.

knob_id { in "KS,%d,%*d,%*d,%*d,%*d" ; }
knob_0 { in "KS,%*d,%d,%*d,%*d,%*d" ; }
knob_1 { in "KS,%*d,%*d,%d,%*d,%*d" ; }
knob_2 { in "KS,%*d,%*d,%*d,%d,%*d" ; }
knob_3 { in "KS,%*d,%*d,%*d,%*d,%d" ; }

As Peter suggested, use redirection.

Dirk

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System