Communication Protocol - Celestron CPC DELUXE 800 HD Instruction Manual

You can control your NexStar telescope with a computer via the RS-232
port on the computerized hand control and using an optional RS-232
popular astronomy software programs.
Echo
GoTo Azm-Alt
GoTo Ra-Dec
Get Azm-Alt
Get RA-Dec
Cancel GoTo
Is GoTo in Progress
HC version
Stop/Start Tracking
32-bit GoTo RA-Dec
32-bit get RA-Dec
32-bit GoTo Azm-Alt
32-bit get Azm-Alt
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Communication Protocol

hexadecimal.
Kx
B12AB, 4000
R34AB, 12CE
Z
E
M
L
V
Tx
x = 0 (Tracking off)
x = 1 (Alt-Az on)
x = 2 (EQ-N)
x = 3 (EQ-S)
r34AB0500,12CE0500
e
b34AB0500,12CE0500
z
X#
12AB, 4000#
34AB, 12CE#
# or 1#
1 6 #
34AB0500,12CE0500#
34AB0500,12CE0500#
4-4 Modular
Phone Jack
DB9 Pin 3
PC Transmit
DB9 Pin 2
DB9 Pin 5
PC Receive
Ground
Useful to check communication
10 characters sent.
B=Command, 12AB=Azm,
comma, 4000=Alt.
If command conflicts
with slew limits,
there will be no action.
Scope must be aligned.
If command conflicts with
slew limits, there will be
no action.
10 characters returned,
12AB=Azm, comma,
4000=Alt, #
Scope must be aligned
0=No, 1=Yes
Version 1.6
Alt-Az tracking
requires alignment
The last two characters
will always be zero.
The last two characters
will always be zero.
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