public bool ReadTags(List <ITag> tagList)
{
try
{
if (!IsAvailable || !IsConnected)
{
return(false);
}
List <NodeId> NodeIdList = new List <NodeId>();
List <Type> ExpectedTypesList = new List <Type>();
List <object> ObjectList = new List <object>();
List <ServiceResult> ServiceResultList = new List <ServiceResult>();
foreach (var tag in tagList)
{
NodeIdList.Add(new NodeId(tag.Address));
ExpectedTypesList.Add(tag.TagType);
}
ClientSession.ReadValues(NodeIdList, ExpectedTypesList, out ObjectList, out ServiceResultList);
int index = 0;
bool Success = true;
foreach (var MyServiceResult in ServiceResultList)
{
OPCTag tag = tagList[index] as OPCTag;
if (!tag.UpdateTag(ServiceResultList[index], ObjectList[index]))
{
Success = false;
}
index++;
}
return(Success);
}
catch (Exception ex)
{
Logger?.LogException($"OPC - Multiple read error. Ex: {ex.Message}.");
return(false);
}
}
public bool WriteTags(List <ITag> tagList, List <object> objectList)
{
try
{
if (!IsAvailable || !IsConnected)
{
return(false);
}
if (tagList.Count() != objectList.Count())
{
Logger?.LogException($"OPC - WriteTags wrong values. Tags request: {tagList.Count()}. Value given: {objectList.Count()}.");
return(false);
}
WriteValueCollection nodesToWriteCollection = new WriteValueCollection();
int index = 0;
DataValue val = new DataValue();
foreach (var tag in tagList)
{
Type varType = tagList[index].TagType;
object varValue = objectList[index];
var MyValueCasted = Convert.ChangeType(varValue, varType);
val.Value = MyValueCasted;
nodesToWriteCollection.Add(new WriteValue()
{
NodeId = new NodeId(tagList[index].Address),
AttributeId = Attributes.Value,
Value = val
});
index++;
}
StatusCodeCollection results;
DiagnosticInfoCollection diagnosticInfos;
RequestHeader requestHeader = new RequestHeader();
//requestHeader.ReturnDiagnostics = 0;
ResponseHeader RS = ClientSession.Write(
requestHeader,
nodesToWriteCollection,
out results,
out diagnosticInfos);
bool Success = true;
foreach (var result in results)
{
if (result.Code != StatusCodes.Good)
{
Success = false;
}
}
index = 0;
foreach (var item in results)
{
OPCTag tag = tagList[index] as OPCTag;
if (!tag.UpdateTag(item))
{
Success = false;
}
index++;
}
return(Success);
}
catch (Exception ex)
{
Logger?.LogException($"OPC - Multiple read error. Ex: {ex.Message}.");
return(false);
}
}
