DynamicSymbol.IsReadOnly Property
Indicates that this instance is read only.
          Namespace:  TwinCAT.TypeSystem
Assembly:  TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 6.0.328+39e3229
Syntax
C#
public bool IsReadOnly { get; }Property Value
Type: Boolean
Remarks
Actually, this Flag is restricted to TcCOM-Objects readonly Parameters. Within the PLC this is used for the ApplicationName and ProjectName of PLC instances. Write-Access on these Modules will create an DeviceAccessDenied error.