Advantech PCL-848A/B Dokumentacja Pobierz pdf (Strona 55)

University of Hertfordshire

else

if (buf=="ID?"){

system ("echo \"SEND 18 \'ID?\'\"| cat - > /dev/gpib0");

printf("Identify HP8591 EM Spectrum Analyser \n");

}

else {

spec[3]=buf;

system("echo \"SEND 18 \'FA %s MZ;FB %s MZ;CF %s MZ;SP %s MZ;\'\"| cat ->

/dev/gpib0\n",spec[0],spec[1],spec[2],spec[3]);

printf("To control the HP8591 EM Spectrum Analyser at FA: %s, FB: %s, CF: %s, SP: %s \n",

spec[0],spec[1],spec[2],spec[3]);

system("echo \"RECIEVE 18\"| cat - > /dev/gpib0; read x< /dev/gpib0");

result[]=$x;

}

//return result to the client

send(temp_sock_descriptor,result[], len,0);

printf("send results to client:%s\n", result[]);

close(temp_sock_descriptor);

}

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Advantech PCL-848A/B Dokumentacja Strona 55