/// <summary>
/// Sets the value with the specified name.
/// </summary>
public void SetValue(string name, object value)
{
Entry entry;
Opc.Ua.TypeInfo type = Opc.Ua.TypeInfo.Construct(value);
for (int ii = 0; ii < m_entries.Count; ii++)
{
entry = m_entries[ii];
if (entry.Name == name)
{
entry.Value = value;
entry.DataType = type.BuiltInType;
m_entries[ii] = entry;
return;
}
}
entry = new Entry();
entry.Name = name;
entry.DataType = type.BuiltInType;
entry.Value = value;
m_entries.Add(entry);
}
private ServiceResult OnWriteDataItem(
ISystemContext context,
NodeState node,
NumericRange indexRange,
QualifiedName dataEncoding,
ref object value,
ref StatusCode statusCode,
ref DateTime timestamp)
{
DataItemState variable = node as DataItemState;
// 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);
}
if (typeInfo.BuiltInType != BuiltInType.DateTime)
{
double number = Convert.ToDouble(value);
number = Math.Round(number, (int)variable.ValuePrecision.Value);
value = Opc.Ua.TypeInfo.Cast(number, typeInfo.BuiltInType);
}
return(ServiceResult.Good);
}
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);
}
public ServiceResult OnWrite(
ISystemContext context,
NodeState node,
NumericRange indexRange,
QualifiedName dataEncoding,
ref object value,
ref StatusCode statusCode,
ref DateTime timestamp)
{
BaseDataVariableState variable = node as BaseDataVariableState;
// 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;
}
}
return ServiceResult.Good;
}
private ServiceResult OnWriteDiscrete(
ISystemContext context,
NodeState node,
NumericRange indexRange,
QualifiedName dataEncoding,
ref object value,
ref StatusCode statusCode,
ref DateTime timestamp)
{
MultiStateDiscreteState variable = node as MultiStateDiscreteState;
// 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);
}
if (indexRange != NumericRange.Empty)
{
return(StatusCodes.BadIndexRangeInvalid);
}
double number = Convert.ToDouble(value);
if (number >= variable.EnumStrings.Value.Length | number < 0)
{
return(StatusCodes.BadOutOfRange);
}
return(ServiceResult.Good);
}