This is the list of supported - read, write - PGNs from the Orca Core:
Transmit PGN
PGN 1 = 59392;
PGN 2 = 59904;
PGN 3 = 60160;
PGN 4 = 60416;
PGN 5 = 60928;
PGN 6 = 126208;
PGN 7 = 126464;
PGN 8 = 126993;
PGN 9 = 126996;
PGN 10 = 126998;
PGN 11 = 126992;
PGN 12 = 129025;
PGN 13 = 129026;
PGN 14 = 129029;
PGN 15 = 127257;
PGN 16 = 127250;
PGN 17 = 127251;
PGN 18 = 129283;
PGN 19 = 129284;
PGN 20 = 129285;
PGN 21 = 127258;
PGN 22 = 130850;
PGN 23 = 126208;
PGN 24 = 126720;
PGN 25 = 61184;
PGN 26 = 65305;
Receive PGN
PGN 1 = 59392;
PGN 2 = 59904;
PGN 3 = 60160;
PGN 4 = 60416;
PGN 5 = 60928;
PGN 6 = 65240;
PGN 7 = 126208;
PGN 8 = 127488;
PGN 9 = 129025;
PGN 10 = 127489;
PGN 11 = 129026;
PGN 12 = 130306;
PGN 13 = 129794;
PGN 14 = 128259;
PGN 15 = 129284;
PGN 16 = 127493;
PGN 17 = 127237;
PGN 18 = 129029;
PGN 19 = 130310;
PGN 20 = 130311;
PGN 21 = 130312;
PGN 22 = 127497;
PGN 23 = 128267;
PGN 24 = 130316;
PGN 25 = 127245;
PGN 26 = 129038;
PGN 27 = 129039;
PGN 28 = 126992;
PGN 29 = 129809;
PGN 30 = 127505;
PGN 31 = 127506;
PGN 32 = 127250;
PGN 33 = 129810;
PGN 34 = 127251;
PGN 35 = 127508;
PGN 36 = 127257;
PGN 37 = 127258;
PGN 38 = 126720;
PGN 39 = 65360;
PGN 40 = 65345;
PGN 41 = 65379;
PGN 42 = 65305;
PGN 43 = 65341;
PGN 44 = 130850;