public void SendIdentifyBroadcast()
{
Trace.WriteLine("Sending identify broadcast", null);
MemoryStream mem = new MemoryStream();
//ethernet
PhysicalAddress ethernetDestinationHwAddress = PhysicalAddress.Parse(RT.MulticastMACAdd_Identify_Address);
Ethernet.Encode(mem, ethernetDestinationHwAddress, adapter.MacAddress, Ethernet.Type.VLanTaggedFrame);
//VLAN
VLAN.Encode(mem, VLAN.Priorities.Priority0, VLAN.Type.PN);
//Profinet Real Time
RT.EncodeFrameId(mem, RT.FrameIds.DCP_Identify_ReqPDU);
//Profinet DCP
DCP.EncodeIdentifyRequest(mem, ++lastXid);
//Send
Send(mem);
}