Experimental Physics and
Industrial Control System

john sinclair <[email protected]> · Tue, 28 Aug 2001 16:22:06 -0400 (EDT)

In case anyone is interested...

On Sat, 25 Aug 2001, john sinclair wrote:

> I noticed that my ca server does not respond properly when a
> ca_get_callback is called using DBR_GR_??? or DBR_CTRL_???, i.e. I don't
> send warning and alarm limits back properly. Instead, lower
> warning and alarm limits are populated by values for lopr.
> Upper limits get hopr. What do I do to fix this behavior?

In my caServer derived class, I had copied the following from
an example server:

(for a double PV)

	.
	.
	.
  serialServer::ft_anaRecPV.installReadFunc ("graphicHigh",
   &anaRecPV::getHighLimit);

  serialServer::ft_anaRecPV.installReadFunc ("graphicLow",
   &anaRecPV::getLowLimit);

  serialServer::ft_anaRecPV.installReadFunc ("controlHigh",
   &anaRecPV::getHighLimit);

  serialServer::ft_anaRecPV.installReadFunc ("controlLow",
   &anaRecPV::getLowLimit);

  serialServer::ft_anaRecPV.installReadFunc ("alarmHigh",
   &anaRecPV::getHighLimit);

  serialServer::ft_anaRecPV.installReadFunc ("alarmLow",
   &anaRecPV::getLowLimit);

  serialServer::ft_anaRecPV.installReadFunc ("alarmHighWarning",
   &anaRecPV::getHighLimit);

  serialServer::ft_anaRecPV.installReadFunc ("alarmLowWarning",
   &anaRecPV::getLowLimit);
        .
        .
        .

I needed to add functions to my myCasPV derived class to get
the high & low alarms and warnings and then relace the above
references appropriately.

So I added (for the double PV)

gddAppFuncTableStatus anaRecPV::getHighAlarm ( gdd &value );
gddAppFuncTableStatus anaRecPV::getLowAlarm ( gdd &value );
gddAppFuncTableStatus anaRecPV::getHighWarning ( gdd &value );
gddAppFuncTableStatus anaRecPV::getLowWarning ( gdd &value );

and the previous references became

        .
        .
        .
  serialServer::ft_anaRecPV.installReadFunc ("graphicHigh", 
   &anaRecPV::getHighLimit);

  serialServer::ft_anaRecPV.installReadFunc ("graphicLow",   
   &anaRecPV::getLowLimit);

  serialServer::ft_anaRecPV.installReadFunc ("controlHigh",
   &anaRecPV::getHighLimit);

  serialServer::ft_anaRecPV.installReadFunc ("controlLow",
   &anaRecPV::getLowLimit);

  serialServer::ft_anaRecPV.installReadFunc ("alarmHigh",
   &anaRecPV::getHighAlarm);

  serialServer::ft_anaRecPV.installReadFunc ("alarmLow",
   &anaRecPV::getLowAlarm);

  serialServer::ft_anaRecPV.installReadFunc ("alarmHighWarning",
   &anaRecPV::getHighWarning);

  serialServer::ft_anaRecPV.installReadFunc ("alarmLowWarning",
   &anaRecPV::getLowWarning);
        .
        .
        .

Everything now works nicely. Thanks to all who replied.

John Sinclair
[email protected]
Oak Ridge National Lab
865-576-6362   865-574-1268 (fax)

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System