public bool ScanOnce()
{
bool bRet = true;
WSMBS.Result sres;
WSMBT.Result tres;
sres = WSMBS.Result.SUCCESS;
tres = WSMBT.Result.SUCCESS;
for (int Index = 0; Index < m_scanArea.Count; Index++)
{
if (m_nProcotol == 2)
{
//write register
if (queue.Count > 0)
{
WrReg_Coil node = queue.Dequeue();
bool val = (node.val != 0);
if (node.cmd == 0)
{
tres = tcp_svr.WriteSingleCoil((byte)m_nStation, node.adr, val);
}
if (node.cmd == 2)
{
tres = tcp_svr.WriteSingleRegister((byte)m_nStation, node.adr, node.val);
}
}
else
{
//read register
switch (m_nFunc)
{
case 0:
tres = tcp_svr.ReadCoils((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_bValue[Index]);
break;
case 1:
tres = tcp_svr.ReadDiscreteInputs((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_bValue[Index]);
break;
case 2:
tres = tcp_svr.ReadHoldingRegisters((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_sValue[Index]);
break;
case 3:
tres = tcp_svr.ReadInputRegisters((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_sValue[Index]);
break;
}
}
if (tres == WSMBT.Result.SUCCESS)
{
nSucc++;
}
else
{
nFail++;
err_msg = tres.ToString();
bRet = false;
}
}
else
{
//write register
if (queue.Count > 0)
{
WrReg_Coil node = queue.Dequeue();
bool val = (node.val != 0);
if (node.cmd == 0)
{
sres = ser_svr.WriteSingleCoil((byte)m_nStation, node.adr, val);
}
if (node.cmd == 2)
{
sres = ser_svr.WriteSingleRegister((byte)m_nStation, node.adr, node.val);
}
}
else
{
//read register
switch (m_nFunc)
{
case 0:
sres = ser_svr.ReadCoils((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_bValue[Index]);
break;
case 1:
sres = ser_svr.ReadDiscreteInputs((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_bValue[Index]);
break;
case 2:
sres = ser_svr.ReadHoldingRegisters((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_sValue[Index]);
break;
case 3:
sres = ser_svr.ReadInputRegisters((byte)m_nStation, m_scanArea[Index].start_adr, (ushort)m_scanArea[Index].length, m_sValue[Index]);
break;
}
if (tres == WSMBT.Result.SUCCESS)
{
nSucc++;
}
else
{
nFail++;
err_msg = tres.ToString();
bRet = false;
}
}
}
}
return(bRet);
}
private void _bw_DoWork(object sender, DoWorkEventArgs e)
{
try
{
AveragingStack <UInt16> node1DepthAvg = new AveragingStack <ushort>();
AveragingStack <UInt16> node2DepthAvg = new AveragingStack <ushort>();
UInt16 node1Roll = 0;
UInt16 node1State = 0;
UInt16 node2Roll = 0;
UInt16 node2state = 0;
var register = new short[_registerSize];
ReadingCount = 0;
InStartupMode = true;
ReadInProgress = true;
for (int i = 0; i <= 5; i++)
{
_bw.ReportProgress(i);
Node1ModResult = _modbus.ReadHoldingRegisters(1, 0, _registerSize, register);
node1State = (UInt16)register[_node1StateReg];
if (node1State == 128)
{
node1DepthAvg.Add((UInt16)register[_node1DepthReg]);
node1Roll = (UInt16)register[_node1RollReg];
}
else
{
node1Roll = 10;
}
node2state = (UInt16)register[_node2StateReg];
if (node2state == 128)
{
node2DepthAvg.Add((UInt16)register[_node2DepthReg]);
node2Roll = (UInt16)register[_node2RollReg];
}
else
{
node2Roll = 10;
}
System.Threading.Thread.Sleep(_readInterval * 1000);
}
Double[] readings =
{
node1DepthAvg.Average, node1Roll, node1State, node2DepthAvg.Average, node2Roll,
node2state
};
ProcessReadings(readings);
ReadInProgress = false;
}
catch (Exception ex)
{
ReadInProgress = false;
throw ex;
}
}