I just noticed my Program Editor Ver- 5.0.0.7 (old I know,
and not going to change it for the moment)
Running in enhanced, colour mode does not report
any errors if I use the incorrect pin (08M) e.g. -
serin 0,N2400,b0
serin 1,N2400,b0
serin 2,N2400,b0
serin 3,N2400,b0
serin 4,N2400,b0
serin...