Celestron 21020 - RTC Commands

^24) is a fraction of a
rotation. To convert to
degrees, multiply by
360.
chr(1) &
chr(0) &
chr(0) &
chr(0) &
chr(3)
“#”
Get Longitude
((x*65536)+(y*256)+z)/(2
^24) is a fraction of a
rotation. To convert to
degrees, multiply by
360.
“P” &
chr(1) &
chr(176) &
chr(2) &
chr(0) &
chr(0) &
chr(0) &
chr(3)
chr(x) &
chr(y) &
chr(z) &
“#”
1.6+
Get Date
x is month (1-12)
y is day (1-31)
“P” &
chr(1) &
chr(176) &
chr(3) &
chr(0) &
chr(0) &
chr(0) &
chr(2)
chr(x) &
chr(y) &
“#”
1.6+
Get Year
(x * 256) + y = year
“P” &
chr(1) &
chr(176) &
chr(4) &
chr(0) &
chr(0) &
chr(0) &
chr(2)
chr(x) &
chr(y) &
“#”
1.6+
Get Time
x is the hours
y is the minutes
z is the seconds
“P” &
chr(1) &
chr(176) &
chr(51) &
chr(0) &
chr(0) &
chr(0) &
chr(3)
chr(x) &
chr(y) &
chr(z) &
“#”
1.6+
RTC Commands
The following table shows various RTC commands on the CGE mount.
Command Function PC Command Hand Control
Response
Applies to
Versions
Get Date
x is month (1-12)
y is day (1-31)
“P” &
chr(1) &
chr(178) &
chr(3) &
chr(0) &
chr(0) &
chr(0) &
chr(x) &
chr(y) &
“#”
1.6+