Message Type 21 to 28, PINA

Proprietary NMEA message containing the analog state of the specified input on the CTM modem.

Message format is:

$PINA,n,x.xx*hh

Where:

n is the analog input number with range 1 through 6 (CTM200r1) or 8 (CTM200r2).

x.xx is the current analog value of input n in volts

hh is the message checksum

Example:

$PINA,1,0.00*39
$PINA,2,0.00*3A
$PINA,3,0.00*3B
$PINA,4,0.00*3C
$PINA,5,0.00*3D
$PINA,6,0.00*3E
$PINA,7,0.00*3F
$PINA,8,0.00*30