private void button5_Click(object sender, EventArgs e)
{
//mi yazma butonu
ModbusClient tcpclient = new ModbusClient(Convert.ToString(textBox1.Text), 502);
tcpclient.Connect();
int cc = Convert.ToInt32(textBox12.Text);
int[] mideger = ModbusClient.ConvertDoubleToTwoRegisters(Convert.ToInt32(textBox8.Text));
tcpclient.WriteMultipleRegisters(cc - 1, mideger);
//tcpclient.WriteSingleRegister(cc-1, mideger[0]);
//tcpclient.WriteSingleRegister(cc-1, mideger[1]);
}