public EncapsReply SendRRData(CommonPacketItem AddressItem, CommonPacketItem DataItem, CommonPacketItem[] AdditionalItems = null)
{
if (OnPreOperation != null)
{
OnPreOperation();
}
if ((CommonPacketTypeId)AddressItem.TypeId == CommonPacketTypeId.ConnectionBased)
{
//The connection ID may have changed, so we have to reset it
AddressItem.Data = BitConverter.GetBytes(ConnectionParameters.O2T_CID);
}
EncapsRRData rrData = new EncapsRRData();
rrData.CPF = new CommonPacket();
rrData.Timeout = (ushort)MillisecondTimeout;
rrData.CPF.AddressItem = AddressItem;
rrData.CPF.DataItem = DataItem;
if (AdditionalItems != null)
{
for (int i = 0; i < AdditionalItems.Length; i++)
{
rrData.CPF.AddItem(AdditionalItems[i]);
}
}
EncapsPacket request = EncapsPacketFactory.CreateSendRRData(SessionHandle, 0, SenderContext, rrData.Pack());
byte[] rawRequest = request.Pack();
byte[] rawReply = SendData_WaitReply(rawRequest);
if (OnPostOperation != null)
{
OnPostOperation();
}
if (rawReply == null)
{
return(null);
}
EncapsReply reply = new EncapsReply();
int temp = 0;
reply.Expand(rawReply, 0, out temp);
return(reply);
}
/// <summary>
/// Verifies that the device supports CIP by searching for IdentityInfo item 0x0C
/// </summary>
/// <param name="si">Session Info</param>
/// <returns>True if the device supports CIP messaging, false otherwise</returns>
public static bool VerifyCIP(SessionInfo si)
{
if (!si.Connected)
{
return(false);
}
EncapsPacket request = EncapsPacketFactory.CreateListIdentity();
request.SessionHandle = si.SessionHandle;
request.SenderContext = si.SenderContext;
EncapsReply reply = new EncapsReply();
byte[] rawReply = si.SendData_WaitReply(request.Pack());
int temp = 0;
reply.Expand(rawReply, 0, out temp);
if (reply.Status != 0)
{
return(false);
}
ListIdentityReply liReply = reply;
if (liReply is ListIdentityReply_Failure)
{
return(false);
}
ListIdentityReply_Success liSucc = (ListIdentityReply_Success)(liReply);
for (int i = 0; i < liSucc.ItemCount; i++)
{
if (liSucc.IdentityItems[i].ItemTypeCode == 0x0C)
{
si.IdentityInfo = liSucc.IdentityItems[i];
return(true);
}
}
return(false);
}
/// <summary>
/// Creates a new session and registers it with the device
/// </summary>
/// <param name="hostNameOrIp">Host name or IP to connect to</param>
/// <param name="port">Port to connect to (default: 0xAF12)</param>
/// <param name="senderContext">Sender Context</param>
/// <returns>Session Info object, check the SessionInfo.Connected and SessionInfo.Registered values</returns>
public static SessionInfo CreateAndRegister(string hostNameOrIp, int port = 0xAF12, byte[] senderContext = null)
{
SessionInfo si = new SessionInfo();
si.SessionSocket = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Unspecified);
si.Connected = false;
si.Registered = false;
si.Pinged = false; //AK
si.HostNameOrIp = hostNameOrIp;
si.Port = port;
si.SenderContext = senderContext;
//First we Ping...
try
{
si.TcpPing(hostNameOrIp, port);
}catch (Exception e) { si.LastSessionErrorStack = e.StackTrace; si.LastSessionErrorString = e.Message; return(si); }
//And we connect...
try
{
if (si.Pinged)
{
si.SessionSocket.Connect(hostNameOrIp, port);
si.Connected = true;
}
else
{
return(si); //Ping NOK!
}
}
catch (Exception e) { si.LastSessionErrorStack = e.StackTrace; si.LastSessionErrorString = e.Message; return(si); }
//Now we register the session
try
{
EncapsPacket packet = EncapsPacketFactory.CreateRegisterSession(si.SenderContext);
byte[] rawPacket = packet.Pack();
byte[] rawReply = si.SendData_WaitReply(rawPacket);
EncapsReply reply = new EncapsReply();
int tmp = 0;
reply.Expand(rawReply, 0, out tmp);
//Now we need to figure out if we successfully registered...
RegisterSessionReply registerReply = reply;
if (registerReply is RegisterSession_Success)
{
si.SessionHandle = registerReply.SessionHandle;
si.Registered = true;
}
else
{
si.Registered = false;
return(si);
}
}
catch (Exception e) { si.LastSessionErrorStack = e.StackTrace; si.LastSessionErrorString = e.Message; return(si); }
return(si);
}
