55
PC keyboard, this will move the LX200 North, South, East, or West respectively. Press the space bar on the PC keyboard to stop. Press X to exit the program.
If the LX200 does not respond to the N, S, E, or W keys, be sure the CAPSLOCK is OFF. If it still does not work, check the PC serial port pinouts of your computer to be sure they are wired correctly to the LX200
With a successful
3. LX200 Command Set
Intended for professional programmers, the LX200 Command Set is used to write custom software for remote operation of the telescope with a PC. Each command is listed in a section appropriate to its type. Each entry in the command list includes the command name, any parameters, any return values, and a description. The parameters and the return data are shown in a manner that indicates their format. These formats are listed below along with examples of how the data might actually appear, the legal range of values, and a short description. Below is a detailed description:
a. Command Set Formats
HH:MM.T
Example 05:47.4
Range 00:00.0 - 23:59.9
Hours, minutes, and tenths of minutes.
sDD*MM
Example +45*59
Range
Signed degrees and minutes (the '" represents ASCII 223 which appears on the handbox as a degree symbol).
DDD*MM |
|
Example | 254*09 |
Range | 000*00 - 359*59 |
Unsigned degrees and minutes. | |
HH:MM:SS |
|
Example | 13:15:36 |
Range | |
Hours, minutes, and seconds. | |
MM/DD/YY | |
Example | 02/06/92 |
Range | 01/01/00 - 12/31/99 (see description) |
Month, day, and year. The two digit year | |
indicates the following: | |
| |
| |
sHH |
|
Example | |
Range | |
Signed hour offset. | |
NNNN |
|
Example | 3456 |
Range | 0000 - 9999' |
Four digit object number. | |
sMM.M |
|
Example | 02.4 Range |
05.5- 20.0
Signed magnitude value.
NNN
Example 134
Range 000 - 200
Three digit object size (minutes).
DD* |
|
|
Example | 56* | |
Range |
| 00* - 90* |
"Higher" parameter (degrees). | ||
TT.T |
|
|
Example | 59.2 | |
Range |
| 56.4 - 60.1 |
Tracking "frequency." | ||
<obj> info |
|
|
Example | CNGC1976 SU DNEBMAG 3.9 SZ 66.0' | |
Range |
| n/a |
Object information. | ||
Ok |
|
|
Example | 1 | |
Range |
| 0 or 1 |
Status value returned after setting values. If the | ||
value is legal 1 is returned, otherwise 0 is returned. | ||
b. General Telescope Information | ||
Command | :GR# | |
Returns | +HH:MM.T# | |
Gets the current Flight Ascension.
Command :GD#
Returns sDD*MM#
Gets the current Declination.
Command :GA#
Returns sDD*MM#
Gets the current Altitude.
Command :GZ#
Returns DDD*MM#
Gets the current Azimuth.
Command :GS# Returns
HH:MM:SS#
Gets the current sidereal time.
Command | :SS HH:MM:SS# |
Returns | Ok |
| Sets the sidereal time. |
Command | :GL# |
| :Ga# |
Returns | HH:MM:SS# |
Gets the local time either in 24 hour (GL) or 12 hour (Ga) | |
format. | |
Command | :SL HH:MM:SS# |
Returns | Ok |
Sets the local time. NOTE: The parameter should always be in 24 hour format.
Command | :GC# |
Returns | MM/DD/YY# |
Gets the calendar date. | |
Command | :SC MM/DD/YY# |
Returns | Ok (see description) |
Sets the calendar date. NOTE: After the Ok, if the date is | |
valid, two strings will be sent. The first will contain the message "Updating planetary data," the second (sent after the planetary calculations) will contain only blanks. Both strings will be terminated by the "#" symbol.
Command :Gt#
Returns sDD*MM#
Gets the latitude of the currently selected site.
Command :St sDD*MM#
Returns Ok
Sets the latitude of the currently selected site.
Command :Gg#
Returns DDD*MM#
