private void FindWritePacketOrCreate(PacketMap pm, WriteDataServiceRequest request)
{
//The data is already broken up into appropriately sized chunks, we just have
//to find a place to put it...
int rSize = request.Size;
for (int i = 0; i < _writeMsrPackets.Count; i++)
{
if (_writeMsrPackets[i].Size + rSize < MAX_MSR_SIZE)
{
//This one will fit the packet
int svc = _writeMsrPackets[i].AddService(request.Pack());
pm.PacketIndex.Add(i);
pm.ServiceIndex.Add(i);
return;
}
}
//If we got here, we have to create a new one...
MultiServiceRequest msr = new MultiServiceRequest();
pm.PacketIndex.Add(_writeMsrPackets.Count);
_writeMsrPackets.Add(msr);
pm.ServiceIndex.Add(msr.AddService(request.Pack()));
}
public static WriteDataServiceReply WriteLogixData(SessionInfo si, string tagAddress, ushort dataType, ushort elementCount, byte[] data, ushort structHandle = 0x0000)
#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);
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));
}