private void ModbusScan_Tick(object sender, EventArgs e)
{
try
{
byte slaveAddress = 1;
uint startAddress = 1280; // Start Address: Y0
ushort numberOfPoints = 8; // Reads 6 coils.
byte[] bytes = objIModbusMaster.ReadCoilStatus(slaveAddress, startAddress, numberOfPoints);
if (bytes != null)
{
bool[] result = Bit.ToArray(bytes);
txtResult.Text = string.Empty; // clear text.
for (int i = 0; i < numberOfPoints; i++)
{
txtResult.Text += string.Format("{0} # ", result[i]);
}
}
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void SendPackage(IModbusMaster modbus, Device dv, DataBlock db)
{
try
{
SendDone.WaitOne(-1);
switch (db.DataType)
{
case "Bit":
byte[] bitArys = null;
switch (db.TypeOfRead)
{
case "ReadCoilStatus":
bitArys = modbus.ReadCoilStatus((byte)dv.SlaveId, $"{db.StartAddress}",
db.Length);
break;
case "ReadInputStatus":
bitArys = modbus.ReadInputStatus((byte)dv.SlaveId, $"{db.StartAddress}",
db.Length);
break;
default:
break;
}
var BitRs = Bit.ToArray(bitArys);
if (bitArys.Length > db.Tags.Count)
{
return;
}
for (var j = 0; j < db.Tags.Count; j++)
{
db.Tags[j].Value = BitRs[j];
db.Tags[j].Checked = BitRs[j];
db.Tags[j].Enabled = BitRs[j];
db.Tags[j].Visible = BitRs[j];
db.Tags[j].ValueSelect1 = BitRs[j];
db.Tags[j].ValueSelect2 = BitRs[j];
db.Tags[j].Timestamp = DateTime.Now;
}
break;
case "Int":
var IntArys = modbus.ReadHoldingRegisters((byte)dv.SlaveId,
$"{db.StartAddress}", db.Length);
var IntRs = Int.ToArray(IntArys);
if (IntRs.Length > db.Tags.Count)
{
return;
}
for (var j = 0; j < IntRs.Length; j++)
{
db.Tags[j].Value = IntRs[j];
db.Tags[j].Timestamp = DateTime.Now;
}
break;
case "DInt":
var DIntArys = modbus.ReadHoldingRegisters((byte)dv.SlaveId,
$"{db.StartAddress}", db.Length);
var DIntRs = Int.ToArray(DIntArys);
if (DIntRs.Length > db.Tags.Count)
{
return;
}
for (var j = 0; j < DIntRs.Length; j++)
{
db.Tags[j].Value = DIntRs[j];
db.Tags[j].Timestamp = DateTime.Now;
}
break;
case "Word":
byte[] wdArys = null;
switch (db.TypeOfRead)
{
case "ReadHoldingRegisters":
wdArys = modbus.ReadHoldingRegisters((byte)dv.SlaveId, $"{db.StartAddress}", db.Length);
break;
case "ReadInputRegisters":
wdArys = modbus.ReadInputRegisters((byte)dv.SlaveId, $"{db.StartAddress}", db.Length);
break;
default:
break;
}
var wdRs = Word.ToArray(wdArys);
if (wdRs.Length > db.Tags.Count)
{
return;
}
for (var j = 0; j < wdRs.Length; j++)
{
db.Tags[j].Value = wdRs[j];
db.Tags[j].Timestamp = DateTime.Now;
}
break;
case "DWord":
var dwArys = modbus.ReadHoldingRegisters((byte)dv.SlaveId,
$"{db.StartAddress}", db.Length);
var dwRs = DWord.ToArray(dwArys);
for (var j = 0; j < dwRs.Length; j++)
{
db.Tags[j].Value = dwRs[j];
db.Tags[j].Timestamp = DateTime.Now;
}
break;
case "Real":
var rl1Arys = modbus.ReadHoldingRegisters((byte)dv.SlaveId,
$"{db.StartAddress}", db.Length);
var rl1Rs = Real.ToArray(rl1Arys);
for (var j = 0; j < rl1Rs.Length; j++)
{
db.Tags[j].Value = rl1Rs[j];
db.Tags[j].Timestamp = DateTime.Now;
}
break;
}
}
catch (Exception ex)
{
IsConnected = false;
EventscadaException?.Invoke(this.GetType().Name + " XModbus.SendPackage", ex.Message);
}
}
