public static ReadDataServiceRequest BuildLogixReadDataRequest(string tagAddress, ushort number, out int requestSize)
{
byte[] newIOI = IOI.BuildIOI(tagAddress);
int pathLen = newIOI.Length;// IOI.BuildIOI(null, tagAddress);
ReadDataServiceRequest request = new ReadDataServiceRequest();
request.Service = (byte)ControlNetService.CIP_ReadData;
request.PathSize = (byte)(pathLen / 2);
byte[] path = new byte[pathLen];
Buffer.BlockCopy(newIOI, 0, path, 0, newIOI.Length);
//IOI.BuildIOI(path, tagAddress);
request.Path = path;
request.Elements = number;
requestSize = request.Size;
return request;
}
public static ReadDataServiceRequest BuildShortReadDataRequest(uint tagInstance, ushort number, ushort size, out int requestSize)
{
byte[] newIOI = IOI.BuildIOI(tagInstance);
int pathLen = newIOI.Length;
ReadDataServiceRequest request = new ReadDataServiceRequest();
request.Service = 0x4E;// (byte)ControlNetService.CIP_ReadData;
request.PathSize = 0x03;
byte[] path = new byte[] { 0x20, 0xB2, 0x25, 0x00, 0x21, 0x00 };
request.Path = path;
request.Elements = number;
byte[] addData = new byte[10 + newIOI.Length];
addData[0] = 0x02; addData[1] = 0x00; addData[2] = 0x01; addData[3] = 0x01; addData[4] = 0x01;
addData[5] = (byte)(size & 0xFF); addData[6] = (byte)((size & 0xFF00) >> 8);
addData[7] = 0x03; addData[8] = 0x20; addData[9] = 0x6B;
Buffer.BlockCopy(newIOI, 0, addData, 10, newIOI.Length);
request.AddtlData = addData;
requestSize = request.Size;
return request;
}
internal void GenerateRequests()
{
int rSize = 0;
_readRequest = LogixServices.BuildLogixReadDataRequest(_address, _elements, out rSize);
_writeRequest = LogixServices.BuildLogixWriteDataRequest(_address, _dataType, _elements, new byte[] { });
}
