Xylem H-4271 - Manual (Page 19)

if(port == 2)
if(COM2_LastChar == 0x0A) // CR LF terminates the response
Timeout = 0;
if(port == 3)
if(COM3_LastChar == 0x0A) // CR LF terminates the response
Timeout = 0;
if(Timeout)
Timeout--;
}
while(Timeout);
for(i = 0 ; i < 50 ; i++) // move response to SDI In Buffer
{
getcharX(port, 0, &Data);
Data = Data & 0x7F; // strip off parity bit
SDI_In_buffer[i] = Data; // save in SDI buffer
if(Data == 0)
break;
}
// make sure in buffer is empty before leaving
// do it quick so we do not get the service request
while(getcharX(port, 0, &c));
// look for proper SDI-12 address and return it or return a NULL
if(SDI_In_buffer[0] >= ' ')
Data = SDI_In_buffer[0];
else
Data = 0;
if((retry == 4) && (!Data) || // Only send the radio beacon
(retry == 2) && (!Data)) // on selected retries
{
msdelay(2000);
if(radio) // if a radio connection is selected
{
putcharX(port,'+'); // +++
putcharX(port,'+');
putcharX(port,'+');
msdelay(2000); // wait for 'OK'
putcharX(port,'A'); // This command forces the
putcharX(port,'T'); // radio to resend the beacon
putcharX(port,'F'); // to the remote radio.
putcharX(port,'H'); // now making this part of
putcharX(port,','); // the retry process
putcharX(port,'C');
putcharX(port,'N');
putcharX(port,0x0A);
putcharX(port,0x0D);
msdelay(2000); // wait for 'OK'
}
while(getcharX(port, 0, &c)); // start with a clear buffer
}
}
while((--retry) && (!Data));
return(Data);
}
H-4271
Installation And Maintenance 2-9