private (bool IsError, string ErrorMessage, List <Dose> Datas) GetPLCData()
{
var datas = new List <Dose>();
PlcMemory dm = PlcMemory.DM;
short resultCountCells = 0;
EtherNetPLC cp1 = new EtherNetPLC();
try
{
cp1.Link(_configApp.IpAddress, _configApp.PortAddress, 300);
cp1.ReadWord(dm, COUNTER_CELLS_FOR_READING, out resultCountCells);
if (resultCountCells > 0)
{
short total = (short)(resultCountCells / PACKEGES); //целое число пакетов (кратное числу возможному для приема пакетов за раз).
short mod = (short)(resultCountCells % PACKEGES); //остаток пакетов от целого числа
short[] data = new short[600];
for (int i = 0; i < total; i++)
{
cp1.ReadWords(dm, (short)(START_CELL + (i * PACKEGES * COUNT_DATAROWS)), (short)((PACKEGES * COUNT_DATAROWS)), out data);
datas.AddRange(TransformArrayToDose(data).ToArray());
}
if (mod > 0)
{
cp1.ReadWords(dm, (short)(START_CELL + ((short)total * PACKEGES * COUNT_DATAROWS)), (short)((mod * COUNT_DATAROWS)), out data);
datas.AddRange(TransformArrayToDose(data).ToArray());
}
cp1.WriteWord(dm, COUNTER_CELLS_FOR_READING, 0);
}
// cp1.WriteWord(dm, COUNTER_CELLS_FOR_READING, 0);
return(false, "", datas.ToList());
}
catch
{
return(true, "Connection to PLC didn't establish", null);
}
finally
{
cp1.Close();
}
}
private void btnRead_Click(object sender, EventArgs e)
{
System.Diagnostics.Stopwatch sp = new System.Diagnostics.Stopwatch();
sp.Start();
txtValues.Text = "";
short[] rd;
string address = txtAddress.Text.Trim();
string count = txtCount.Text.Trim();
short re = ENT.ReadWords(PlcMemory.DM, short.Parse(address), short.Parse(count), out rd);
if (re != 0)
{
//写入数据出错
txtValues.Text = "数据读取出错！";
}
else
{
for (int i = 0; i < rd.Length; i++)
{
txtValues.Text += rd[i].ToString() + ",";
}
}
//单个读取速度测试
//txtValues.Text = "";
//short rd = 0;
//short address = short.Parse(txtAddress.Text.Trim());
//short count = short.Parse(txtCount.Text.Trim());
//for (int i = 0; i < count; i++)
//{
// short add = (short)(address + i);
// short re = ENT.ReadWord(EtherNetPLC.PlcMemory.DM_Word, add, out rd);
// if (re != 0)
// {
// //写入数据出错
// txtValues.Text = "数据读取出错,已停止！";
// break;
// }
// else
// {
// txtValues.Text += rd.ToString() + ",";
// }
// //txtValues.Text += ",数据读取成功！";
//}
sp.Stop();
txtUseTime.Text = sp.Elapsed.TotalMilliseconds.ToString() + "ms";
}
public bool ReadMultiElement(PlcScanItems item, short ncount, ref short[] value)
{
PlcMemory memorytype = item.AddressType;
short startaddress = short.Parse(item.Address);
short count = ncount;
short result = 0;
lock (readLock)
{
result = omronethernetplc.ReadWords(memorytype, startaddress, ncount, out value);
if (result == 0)
{
return(true);
}
else
{
bConnectOmronPLC = false;
return(false);
}
}
}
