private void AddOrCreateReadPacket(LogixTag tag, int idx)
{
//First we create the request...
int temp = 0;
ReadDataServiceRequest request = LogixServices.BuildLogixReadDataRequest(
tag.Address, tag.Elements, out temp);
//Now we read it from the PLC to find out if it's fragmented...
CommonPacketItem addressItem = CommonPacketItem.GetConnectedAddressItem(_parent.SessionInfo.ConnectionParameters.O2T_CID);
CommonPacketItem dataItem = CommonPacketItem.GetConnectedDataItem(request.Pack(), SequenceNumberGenerator.SequenceNumber(_parent.SyncRoot)); //ToDo _parent.SyncRoot
EncapsReply reply = _parent.SessionInfo.SendUnitData(addressItem, dataItem);
if (reply != null)
{
//It's a good tag, let's figure out if it's fragmented...
ReadDataServiceReply rdReply = new ReadDataServiceReply(reply);
PacketMap pm = new PacketMap()
{
TagIndex = idx
};
pm.PacketIndex = new List <int>();
pm.ServiceIndex = new List <int>();
pm.Offsets = new List <uint>();
pm.NumReplies = 1;
if (rdReply.Status == 0x06)
{
//Partial read... We'll have to request more data, but first let's make this packet
request = LogixServices.BuildFragmentedReadDataRequest(tag.Address, tag.Elements,
0, out temp);
int[] status = FindPacketOrCreate(request.Pack(), (ushort)(rdReply.Data.Length + 2));
uint offset = (uint)rdReply.Data.Length;
pm.PacketIndex.Add(status[0]);
pm.ServiceIndex.Add(status[1]);
pm.Offsets.Add(0);
while (rdReply.Status == 0x06)
{
rdReply = LogixServices.ReadLogixDataFragmented(_parent.SessionInfo, tag.Address, tag.Elements,
offset, _parent.SyncRoot); //ToDo _parent.SyncRoot
request = LogixServices.BuildFragmentedReadDataRequest(tag.Address, tag.Elements,
offset, out temp);
status = FindPacketOrCreate(request.Pack(), (ushort)(rdReply.Data.Length + 2));
pm.PacketIndex.Add(status[0]);
pm.ServiceIndex.Add(status[1]);
offset += (uint)rdReply.Data.Length;
pm.Offsets.Add(offset);
pm.NumReplies++;
}
}
else if (rdReply.Status == 0x00 && rdReply.Data != null)
{
//Full read, create the packet...
int[] status = FindPacketOrCreate(request.Pack(), (ushort)(rdReply.Data.Length + 2));
pm.PacketIndex.Add(status[0]);
pm.ServiceIndex.Add(status[1]);
pm.Offsets.Add(0);
}
_readPackets.Add(pm);
}
}
private void WriteAll()
{
try
{
//First we are going to have to build the write requests...
_writeMsrPackets = new List <MultiServiceRequest>();
BuildWriteRequests();
//Now we have to send them out...
for (int i = 0; i < _writeMsrPackets.Count; i++)
{
CommonPacketItem addressItem =
CommonPacketItem.GetConnectedAddressItem(_parent.SessionInfo.ConnectionParameters.O2T_CID);
CommonPacketItem dataItem = CommonPacketItem.GetConnectedDataItem(_writeMsrPackets[i].Pack(),
SequenceNumberGenerator.SequenceNumber(_parent.SyncRoot));
EncapsReply reply = _parent.SessionInfo.SendUnitData(addressItem, dataItem);
if (reply != null)
{
MultiServiceReply msReply = new MultiServiceReply(reply);
DecodeWriteReply(i, msReply);
}
}
}
catch (Exception ex)
{
_logger.LogError("LogixTagGroup WriteAll: " + ex.Message + " " + ex.StackTrace);
}
}
public static WriteDataServiceReply WriteLogixData(SessionInfo si, string tagAddress, ushort dataType, ushort elementCount, byte[] data, object syncRoot, ushort structHandle = 0x0000) //ToDo syncRoot
#endif
{
WriteDataServiceRequest request = BuildLogixWriteDataRequest(tagAddress, dataType, elementCount, data, structHandle);
EncapsRRData rrData = new EncapsRRData();
rrData.CPF = new CommonPacket();
rrData.CPF.AddressItem = CommonPacketItem.GetConnectedAddressItem(si.ConnectionParameters.O2T_CID);
rrData.CPF.DataItem = CommonPacketItem.GetConnectedDataItem(request.Pack(), SequenceNumberGenerator.SequenceNumber(syncRoot));
rrData.Timeout = 2000;
EncapsReply reply = si.SendUnitData(rrData.CPF.AddressItem, rrData.CPF.DataItem);
if (reply == null)
{
return(null);
}
if (reply.Status != 0)
{
return(null);
}
return(new WriteDataServiceReply(reply));
}
private void ReadAll()
{
try
{
//The lock object should already be held...
//List<MultiServiceReply> replies = new List<MultiServiceReply>();
//List<LogixTag> updatedTags = new List<LogixTag>();
_byteReplies = new Dictionary <int, List <byte[]> >();
CommonPacketItem addressItem =
CommonPacketItem.GetConnectedAddressItem(_parent.SessionInfo.ConnectionParameters.O2T_CID);
for (int i = 0; i < _msrPackets.Count; i++)
{
CommonPacketItem dataItem = CommonPacketItem.GetConnectedDataItem(_msrPackets[i].Pack(),
SequenceNumberGenerator.SequenceNumber(_parent.SyncRoot));
EncapsReply reply = _parent.SessionInfo.SendUnitData(addressItem, dataItem);
if (reply != null)
{
//We need to suck all the replies out of the packet, and request more data if there is more
MultiServiceReply msReply = new MultiServiceReply(reply);
DecodeReadPacket(i, msReply);
foreach (KeyValuePair <int, List <byte[]> > kvp in _byteReplies)
{
uint offset = 0;
for (int i2 = 0; i2 < kvp.Value.Count; i2++)
{
if (_tags[kvp.Key].UpdateValue(kvp.Value[i2], offset))
{
//updatedTags.Add(_tags[kvp.Key]);
}
offset += (uint)(kvp.Value[i2].Length + 6);
}
}
//UpdateFinished?.Invoke(this, new UpdateFinishedEventArgs(updatedTags));
//updatedTags.Clear();
_byteReplies.Clear();
}
}
}
catch (Exception ex)
{
_logger.LogError("LogixTagGroup ReadAll: " + ex.Message + " " + ex.StackTrace);
}
}
public static ReadDataServiceReply ReadLogixDataFragment(SessionInfo si, string tagAddress, ushort elementCount, object syncRoot) //ToDo syncRoot
{
int requestSize = 0;
ReadDataServiceRequest request = BuildLogixReadDataRequestFragment(tagAddress, elementCount, out requestSize);
EncapsRRData rrData = new EncapsRRData();
rrData.CPF = new CommonPacket();
rrData.CPF.AddressItem = CommonPacketItem.GetConnectedAddressItem(si.ConnectionParameters.O2T_CID);
rrData.CPF.DataItem = CommonPacketItem.GetConnectedDataItem(request.Pack(), SequenceNumberGenerator.SequenceNumber(syncRoot));
rrData.Timeout = 2000;
EncapsReply reply = si.SendUnitData(rrData.CPF.AddressItem, rrData.CPF.DataItem);
if (reply == null)
{
return(null);
}
if (reply.Status != 0 && reply.Status != 0x06)
{
//si.LastSessionError = (int)reply.Status;
return(null);
}
return(new ReadDataServiceReply(reply));
}
