Sky-Watcher Multi-Purpose Computerized Mount - Manual (Page 40)

The SynScan AZ telescopes are designed to receive control commands set from a computer via the RS-232 port and RS-232 cable.
Once connected, the SynScan AZ can be controlled by most popular planetarium software programs. The SynScan AZ will communicate
with the personal computer at 9600 bits/sec, no parity and stop bit. All angles are communicated with 16-bit angle and communicated
using ASCII hexadecimal.
Description PC Command ASCII
Hand Control
Response
Notes
Echo Kx X# Useful to check
communication
Goto Azm-Alt B12AB,4000 # 10 characters sent
B = Command, 12AB =
Azm,
Comma, 4000 = Alt. If
command conflicts with slew
limits, there will be no
action
Goto Ra-Dec R34AB,12CE # Scope must be aligned. If
command conflicts with slew
limits, there will be no
action
Get Azm-Alt Z 12AB,4000# 10 characters returned,
12AB = Azm, comma,
4000 = Alt, #
Get RA-Dec E 34AB,12CE# Scope must be aligned
Cancel Goto M #
Is Goto in Progress L 0# or 1# 0 = No, 1 = Yes: “0” is
ASCII character zero
Is Alignment Complete J 0# or 1# 0 = No, 1 = Yes
HC Version V 22 Two bytes representing V2.2
Stop/Start Tracking Tx
X=0 (Tracking off)
X=1 (Alt-Az on)
X=2 (EQ-N)
X=3 (EQ-S)
# Alt-Az tracking requires
alignment
32-bit goto RA-Dec r34AB0500,12CE0500 #
32-bit get RA-Dec e 34AB0500,
12CE0500#
The last two characters will
always be zero
32-bit goto Azm-Alt b34AB0500,12CE0500 #
32-bit get Azm-Alt z 34AB0500,
12CE0500#
The last two characters will
always be zero
40
Appendix A – RS-232 Connection