public override Task <WriteDataItemsResult> WriteDataItems(string group, IList <DataItemValue> values, Duration?timeout)
{
int N = values.Count;
var failed = new FailedDataItemWrite[N];
for (int i = 0; i < N; ++i)
{
DataItemValue request = values[i];
string id = request.ID;
failed[i] = new FailedDataItemWrite(id, "Write not supported.");
}
return(Task.FromResult(WriteDataItemsResult.Failure(failed)));
}
public override async Task <WriteDataItemsResult> WriteDataItems(string group, IList <DataItemValue> values, Duration?timeout)
{
int N = values.Count;
bool connected = await TryConnect();
if (!connected || connection == null)
{
var failed = new FailedDataItemWrite[N];
for (int i = 0; i < N; ++i)
{
DataItemValue request = values[i];
failed[i] = new FailedDataItemWrite(request.ID, "No connection to OPC UA server");
}
return(WriteDataItemsResult.Failure(failed));
}
List <FailedDataItemWrite>?listFailed = null;
var dataItemsToWrite = new List <WriteValue>(N);
for (int i = 0; i < N; ++i)
{
DataItemValue request = values[i];
string id = request.ID;
if (mapId2Info.ContainsKey(id))
{
ItemInfo info = mapId2Info[request.ID];
NodeId di = info.Node ?? NodeId.Null;
try {
//if (!di.IsWriteable) throw new Exception($"OPC item '{di.Name}' is not writeable");
dataItemsToWrite.Add(MakeWriteValue(di, request.Value.V, info.Type, info.Dimension));
}
catch (Exception exp) {
if (listFailed == null)
{
listFailed = new List <FailedDataItemWrite>();
}
listFailed.Add(new FailedDataItemWrite(id, exp.Message));
}
}
else
{
if (listFailed == null)
{
listFailed = new List <FailedDataItemWrite>();
}
listFailed.Add(new FailedDataItemWrite(id, $"No writeable data item with id '{id}' found."));
}
}
if (dataItemsToWrite.Count > 0)
{
WriteRequest req = new WriteRequest()
{
NodesToWrite = dataItemsToWrite.ToArray()
};
WriteResponse resp = await connection.WriteAsync(req);
// TODO: Check result!
}
if (listFailed == null)
{
return(WriteDataItemsResult.OK);
}
else
{
return(WriteDataItemsResult.Failure(listFailed.ToArray()));
}
}
