| public UpdateRange ( object &dst, object src ) : Opc.Ua.StatusCode | ||
| dst | object | |
| src | object | |
| return | Opc.Ua.StatusCode | |
private ServiceResult OnWriteAnalog(
ISystemContext context,
NodeState node,
NumericRange indexRange,
QualifiedName dataEncoding,
ref object value,
ref StatusCode statusCode,
ref DateTime timestamp)
{
AnalogItemState variable = node as AnalogItemState;
// verify data type.
Opc.Ua.TypeInfo typeInfo = Opc.Ua.TypeInfo.IsInstanceOfDataType(
value,
variable.DataType,
variable.ValueRank,
context.NamespaceUris,
context.TypeTable);
if (typeInfo == null || typeInfo == Opc.Ua.TypeInfo.Unknown)
{
return StatusCodes.BadTypeMismatch;
}
// check index range.
if (variable.ValueRank >= 0)
{
if (indexRange != NumericRange.Empty)
{
object target = variable.Value;
ServiceResult result = indexRange.UpdateRange(ref target, value);
if (ServiceResult.IsBad(result))
{
return result;
}
value = target;
}
}
// check instrument range.
else
{
if (indexRange != NumericRange.Empty)
{
return StatusCodes.BadIndexRangeInvalid;
}
double number = Convert.ToDouble(value);
if (variable.InstrumentRange != null && (number < variable.InstrumentRange.Value.Low || number > variable.InstrumentRange.Value.High))
{
return StatusCodes.BadOutOfRange;
}
}
return ServiceResult.Good;
}
