Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Sun, 7 Oct 2018 22:05:51 +0000

Hi,

In general it is a good idea to avoid writing device support if you can avoid it.  From your example it sounds like you want to send a string to a device, read a string response, and convert the string response to a number.  That is a very common thing to do.  There is an existing device support called streamDevice which will do exactly that.  It means you don't need to write any C code, only a streamDevice protocol file:

http://epics.web.psi.ch/software/streamdevice/doc/

If you have already considered streamDevice and still want an answer to your specific questions, please let us know.

Mark

________________________________
From: [email protected] <[email protected]> on behalf of ori spokoini <[email protected]>
Sent: Sunday, October 7, 2018 4:38 AM
To: [email protected]
Subject: about talking to other record in device support and converting string to int

hi
assume i have record like that
ecord(stringout, "tlm") {
   field(OUT, "pro NPP NMS")
   field(SCAN, "I/O Intr")
   field(FLNK, "pro PP NMS")
}

record(stringin, "pro") {
   field(INP, "$tlm.VAL")
   field(SCAN, "Passive")
   field(DTYP, "devsup")
   field(FLNK, "sum PP NMS")
}

record(longin, "sum") {
}
and i want to change the value the longin record from devsup can i do it ?
somthing like :
int devfunc2 (longinRecord *x){
        x->val=30;
        return 0;
}
and another question :
 how can transfer number from stringin to calc record

tx

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System