Experimental Physics and
Industrial Control System

Hinko Kocevar <[email protected]> · Wed, 24 Nov 2010 15:49:36 +0100

Hi,
I'm poking around the example IOC I've created with:
$ makeBaseApp.pl -t example app1
$ makeBaseApp.pl -i -t example app1
Example runs fine and records are behaving as expected, but..
I tried to experiment with subRecord, but the mySubProcess routine does
not seem to get values on INPx fields if they are not constants. I've
added following line to get INPA value inside the C function:
static long mySubProcess(subRecord *precord)
{
    if (mySubDebug)
        printf("Record %s called mySubProcess(%p)\n",
               precord->name, (void*) precord);
    printf("precord->a %lf\n", precord->a);
    printf("precord->b %lf\n", precord->b);
    return 0;
}

Example:
record(sub,"$(user):subExample")
{
    field(INAM,"mySubInit")
    field(SNAM,"mySubProcess")
    field(INPA, "$(user):subInc")
    field(INPB, "123")
}
record(calc, "$(user):subInc") {
  field(SCAN, "1 second")
  field(VAL, "0")
  field(CALC, "(A+1)")
  field(INPA, "$(user):subInc.VAL NPP")
}
Output from IOC:
Record hinkoHost:subcall called mySubProcess(0x9205998)
precord->a 0.000000
precord->b 123.000000
Record hinkoHost:subcall called mySubProcess(0x9205998)
precord->a 0.000000
precord->b 123.000000
Record hinkoHost:subcall called mySubProcess(0x9205998)
precord->a 0.000000
precord->b 123.000000

At the same time, if I monitor the $(user):subInc:
camonitor hinkoHost:subInc
hinkoHost:subInc               2010-11-24 15:45:57.346136 14
hinkoHost:subInc               2010-11-24 15:45:58.346438 15
hinkoHost:subInc               2010-11-24 15:45:59.346628 16
What am I missing?
Best regards,
Hinko
--
Hinko Kocevar
Technical support software engineer
Instrumentation Technologies d.d.
Velika pot 22, SI-5250 Solkan - Slovenia
T:+386 5 3352600, F:+386 5 3352601
mailto: [email protected]
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System