EPICS_base/pvDatabase
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handle out of control limits better

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This commit is contained in:
mrkraimer
2019-06-09 16:14:25 -04:00
parent 8a050e0f81
commit e901ae3ea0
1 changed files with 7 additions and 5 deletions
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12
src/support/controlSupport.cpp
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@ -92,15 +92,18 @@ bool ControlSupport::process()
double limitLow = pvLimitLow->get();
double limitHigh = pvLimitHigh->get();
double minStep = pvMinStep->get();
bool setValue = false;
if(limitHigh>limitLow) {
if(value>limitHigh) value = limitHigh;
if(value<limitLow) value = limitLow;
if(value>limitHigh) {value = limitHigh;setValue=true;}
if(value<limitLow) {value = limitLow;setValue=true;}
}
if(setValue) convert->fromDouble(pvValue,value);
double diff = value - currentValue;
double outputValue = value;
if(minStep>0.0) {
if(diff<0.0) {
outputValue = currentValue - minStep;
if(limitHigh>limitLow && outputValue<=limitLow) outputValue = limitLow;
isMinStep = true;
if(outputValue<value) {
outputValue = value;
@ -108,6 +111,7 @@ bool ControlSupport::process()
}
} else {
outputValue = currentValue + minStep;
if(limitHigh>limitLow && outputValue>=limitHigh) outputValue = limitHigh;
isMinStep = true;
if(outputValue>value) {
outputValue = value;
@ -115,11 +119,9 @@ bool ControlSupport::process()
}
}
}
if(outputValue==currentValue) return false;
currentValue = outputValue;
convert->fromDouble(pvOutputValue,outputValue);
if(!isMinStep && (outputValue!=value)) {
convert->fromDouble(pvValue,value);
}
return true;
}