public bool WriteRegister(ushort reg, short value)
{
modbus link = new modbus();
bool ret = link.Open(port, 9600, 8, Parity.None, StopBits.Two);
if (!ret)
{
throw EngineMessageException.offline(
"Opening port " + port + " failed: " + link.modbusStatus);
}
short[] val = { value };
Logger.log(
"Writing 0x" + value.ToString("x") +
" to register 0x" + reg.ToString("x") +
" to address 0x" + address.ToString("x"));
ret = link.SendFc16(address, reg, 1, val);
if (!ret)
{
throw new EngineMessageException(
"Writing 0x" + value.ToString("x") +
" to register 0x" + reg.ToString("x") + " failed: " + link.modbusStatus);
}
link.Close();
return(ret);
}
private void sendBtn_Click(object sender, EventArgs e)
{
string[] values = data.Text.Split(' ');
UInt16 addr = Convert.ToUInt16(values[0]);
bool ret;
if (values.Length > 1)
{
short[] val = { Convert.ToInt16(values[1]) };
ret = link.SendFc16(1, addr, 1, val);
if (ret)
{
output.Text += "Successfully wrote ";
}
else
{
output.Text += "Failed to write ";
}
output.Text += values[1] + " to address " + values[0] + "\n";
}
else
{
short[] val = new short[1];
ret = link.SendFc3(1, addr, 1, ref val);
if (ret)
{
output.Text += "Read from " + values[0] + ": " + val[0].ToString() + "\n";
}
else
{
output.Text += "Read from " + values[0] + " failed\n";
}
}
if (!ret)
{
output.Text += "Status: " + link.modbusStatus + "\n";
}
}
