Owner manual
TheSynScanAZtelescopesaredesignedtoreceivecontrolcommandssetfromacomputerviatheRS-232portandRS-232cable.
Onceconnected,theSynScanAZcanbecontrolledbymostpopularplanetariumsoftwareprograms.TheSynScanAZwillcommunicate
withthepersonalcomputerat9600bits/sec,noparityandstopbit.Allanglesarecommunicatedwith16-bitangleandcommunicated
usingASCIIhexadecimal.
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










