Kipp&Zonen 2AP Sun Tracker User Manual
Page 92
REFERENCE
INFORMATION
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MX <source>
Starts monitoring the direction for which <source> was maximal. Returns MX.
MX
Retrieves the direction for which <source> was maximal since the most recent MX <source>
command. Returns MX <source> <level> <position 0> <position 1>. The
<source(s)> are defined in the Analogue command. <level> is in volts.
QStatus
Retrieves the current number of path segments in the path for each motor. Returns QS <count
0> <count 1>. The counts are in hexadecimal and in the range 0 to FF.
SL
Retrieves the next sun observation from the circular queue. Returns SL <intensity> <error
size> <error dir> <position0> <position1> <year> <day> <hour> <minute>
<second> where:
•
<intensity>
gives the average intensity of the sun over the observing period.
•
<error size>
is the number of degrees between where the sun was detected
and where the instrument calculated the sun would be.
•
<error dir>
indicates the direction of the error (in degrees). 0° means the sun was
found at a larger azimuth value and 90° means the sun was found at a
smaller zenith value.
•
<position 0,1> is the approximate position of motors 0 and 1 at the time of observation.
•
<year--second> identifies when the observing period ended.
SL <pos>
Repositions the location in the circular queue from which the next logged sun observation will be
drawn. Returns SL. There are two alternatives for <pos>. 0 positions to the oldest entry in the
circular queue and 1 positions to after the newest entry in the circular queue.
WHere <motor>
Retrieves the end of path information for the specified motor. Returns WH <motor> <position>
<velocity> <time>. Where <time> is the number of seconds from when the WH command is
received until all queued path segments have been completed, and <position> and
<velocity> are the position and velocity of the motor after all path segments are completed.
WPosition (Watermark Position)
Retrieves the watermark position of all motors. Returns WP <position 0> <position 1>.
The watermark position is the most recent position of the motor in which the reference sensor was
not activated. The reported position includes any adjustment.