private void btnAddress_Click(object sender, EventArgs e)
{
((Button)sender).Enabled = false;
Application.DoEvents();
PassiveCommand.SetAddress(SystemPub.ADRcp, Convert.ToInt32(utxtNewAddr.Text));
//if (!SystemPub.ADRcp.SendBytePkt(PassiveRcp.SetAddress(SystemPub.ADRcp.Address, Convert.ToInt32(utxtNewAddr.Text)))) { }
((Button)sender).Enabled = true;
}