private void UpdateState()
{
EncapsRRData rrData = new EncapsRRData();
rrData.CPF = new CommonPacket();
rrData.CPF.AddressItem = CommonPacketItem.GetNullAddressItem();
UnconnectedSend ucmm = new UnconnectedSend();
ucmm.RequestPath = CommonPaths.ConnectionManager;
ucmm.RoutePath = _path;
ucmm.Priority_TimeTick = _session.ConnectionParameters.PriorityAndTick;
ucmm.Timeout_Ticks = _session.ConnectionParameters.ConnectionTimeoutTicks;
ucmm.MessageRequest = new MR_Request();
ucmm.MessageRequest.Service = 0x03;
ucmm.MessageRequest.Request_Path = CommonPaths.IdentityObject;
ucmm.MessageRequest.Request_Data = new byte[] { 0x07, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00, 0x06, 0x00, 0x07, 0x00 };
rrData.CPF.DataItem = CommonPacketItem.GetUnconnectedDataItem(ucmm.Pack());
EncapsReply reply = _session.SendRRData(rrData.CPF.AddressItem, rrData.CPF.DataItem);
if (reply == null)
{
return;
}
if (reply.Status == 0)
{
UnconnectedSendReply ucReply = reply;
if (ucReply.GeneralStatus == 0x00)
{
UnconnectedSendReply_Success succReply = ucReply as UnconnectedSendReply_Success;
DecodeAttributeReply(succReply.ServiceResponse);
}
else
{
//Failed, for some reason...
//TODO: Decipher the code and add it to the error property
}
}
}
private static TemplateInfo ReadStructAttributes(ushort structureId, LogixProcessor processor)
{
//First we have to get the template info...
GetStructAttribsRequest attribsReq = new GetStructAttribsRequest(structureId);
CommonPacketItem addressItem = CommonPacketItem.GetNullAddressItem();
UnconnectedSend ucmm = new UnconnectedSend();
ucmm.Priority_TimeTick = 0x07;
ucmm.Timeout_Ticks = 0x9B;
ucmm.RoutePath = processor.Path;
ucmm.MessageRequest = new MR_Request();
ucmm.MessageRequest.Request_Path = new byte[] { 0x20, 0x6C, 0x25, 0x00, (byte)((structureId & 0x00FF)), (byte)((structureId & 0xFF00) >> 8) };
ucmm.MessageRequest.Service = 0x03;
ucmm.MessageRequest.Request_Data = new byte[] { 0x04, 0x00, 0x04, 0x00, 0x03, 0x00, 0x02, 0x00, 0x01, 0x00 };
ucmm.RequestPath = CommonPaths.ConnectionManager;
CommonPacketItem dataItem = CommonPacketItem.GetUnconnectedDataItem(ucmm.Pack());
EncapsReply reply = processor.SessionInfo.SendRRData(addressItem, dataItem);
if (reply.Status != 0x00)
return null;
//We have to get the data out...
EncapsRRData rrData = new EncapsRRData();
CommonPacket cpf = new CommonPacket();
int temp = 0;
rrData.Expand(reply.EncapsData, 0, out temp);
cpf = rrData.CPF;
byte[] replyData = new byte[28];
Buffer.BlockCopy(cpf.DataItem.Data, 4, replyData, 0, 28);
GetStructAttribsReply structAttribs = new GetStructAttribsReply(replyData);
//Great... now we can request the structure template and be able to read it!
ucmm.MessageRequest.Service = 0x4C;
//We can only read about 480 bytes at a time, so we may have to break it up...
uint bytesRemaining = (structAttribs.TemplateSize - 5) * 4;
uint offset = 0;
List<byte> structInfoBytes = new List<byte>();
while (bytesRemaining > 0)
{
ushort bytesToRead;
if (bytesRemaining < 480)
{
bytesToRead = (ushort)bytesRemaining;
bytesRemaining = 0;
}
else
{
bytesToRead = 480;
bytesRemaining -= 480;
}
byte[] tempB = new byte[6];
Buffer.BlockCopy(BitConverter.GetBytes(offset), 0, tempB, 0, 4);
Buffer.BlockCopy(BitConverter.GetBytes(bytesToRead), 0, tempB, 4, 2);
ucmm.MessageRequest.Request_Data = tempB;
dataItem = CommonPacketItem.GetUnconnectedDataItem(ucmm.Pack());
reply = processor.SessionInfo.SendRRData(addressItem, dataItem);
if (reply.Status != 0x00)
continue;
rrData.Expand(reply.EncapsData, 0, out temp);
cpf = rrData.CPF;
//get the data out...
tempB = new byte[cpf.DataItem.Data.Length - 4];
Buffer.BlockCopy(cpf.DataItem.Data, 4, tempB, 0, cpf.DataItem.Data.Length - 4);
structInfoBytes.AddRange(tempB);
offset += bytesToRead;
}
//Now we have all the data!!!!
return new TemplateInfo(structInfoBytes.ToArray(), structAttribs);
}
private List <LogixTagInfo> GetTagInfo()
{
CommonPacketItem addressItem = CommonPacketItem.GetNullAddressItem();
UnconnectedSend ucmm = new UnconnectedSend();
ucmm.RequestPath = CommonPaths.ConnectionManager;
ucmm.RoutePath = _path;
ucmm.Priority_TimeTick = _session.ConnectionParameters.PriorityAndTick;
ucmm.Timeout_Ticks = _session.ConnectionParameters.ConnectionTimeoutTicks;
ucmm.MessageRequest = new MR_Request();
ucmm.MessageRequest.Service = 0x55;
ucmm.MessageRequest.Request_Path = new byte[] { 0x20, 0x6B, 0x25, 0x00, 0x00, 0x00 }; //Last 2 bytes are the offset...
ucmm.MessageRequest.Request_Data = new byte[] { 0x04, 0x00, 0x02, 0x00, 0x07, 0x00, 0x08, 0x00, 0x01, 0x00 };
CommonPacketItem dataItem = CommonPacketItem.GetUnconnectedDataItem(ucmm.Pack());
EncapsReply reply = _session.SendRRData(addressItem, dataItem);
List <LogixTagInfo> retVal = new List <LogixTagInfo>();
if (reply.Status == 0)
{
UnconnectedSendReply ucReply = reply;
if (ucReply.GeneralStatus == 0x00 || ucReply.GeneralStatus == 0x06)
{
UnconnectedSendReply_Success succReply = ucReply as UnconnectedSendReply_Success;
List <byte> replyBytes = new List <byte>();
uint lastOffset = 0x0000;
retVal.AddRange(DecodeTagInfo(succReply.ServiceResponse, out lastOffset));
while (ucReply.GeneralStatus == 0x06)
{
lastOffset += 1;
if (lastOffset <= 0xFFFF)
{
Buffer.BlockCopy(BitConverter.GetBytes((ushort)lastOffset), 0, ucmm.MessageRequest.Request_Path, 4, 2);
}
else
{
byte[] tempPath = new byte[8];
Buffer.BlockCopy(ucmm.MessageRequest.Request_Path, 0, tempPath, 0, 6);
Buffer.BlockCopy(BitConverter.GetBytes(lastOffset), 0, tempPath, 4, 4);
ucmm.MessageRequest.Request_Path = tempPath;
}
dataItem = CommonPacketItem.GetUnconnectedDataItem(ucmm.Pack());
reply = _session.SendRRData(addressItem, dataItem);
if (reply.Status == 0x00)
{
ucReply = reply;
if (ucReply.GeneralStatus == 0x00 || ucReply.GeneralStatus == 0x06)
{
succReply = ucReply as UnconnectedSendReply_Success;
retVal.AddRange(DecodeTagInfo(succReply.ServiceResponse, out lastOffset));
}
}
}
}
}
return(retVal);
}
