17
M
aaa
Turn to
aaa
degrees azimuth, where aaa is three digits be-
tween “
000
” and “
360
or
450
: vary according to con-
troller type.” Rotation starts.
Msss aaa bbb ccc
This command, together with the [
T
] command, provides
automatic, timed tracking of moving objects or propagation
by the Control Interface itself. This command stores the
time value
sss
seconds to wait between stepping from azi-
muth aaa to
bbb
, and then to
ccc
, etc. (from “2” to as many
as “3800” angles may be stored with one command).
Note that this command is completely different than the [
T
]
command with only one parameter: when multiple parameters
are present, the first one is interpreted by the Control Interface
as the rotation interval sss, not an angle. Valid ranges are
“
001
” to “
999
” for
sss
, and “
000
” to “
360
or
450
: vary
according to controller type” for the angles. When this com-
mand is sent, the parameters are stored in the Control Interface’s
RAM, and the rotator turns to angle aaa and waits for a subse-
quent [
T
] command to begin the actual stepping. All numbers
must be 3 digits, space-separated. Stored values remain in
effect until another [
M
] command is issued (this may have no
parameters, in which case the “
?
>
” error prompt is returned,
but memories are still cleared), or until the controller is turned
off or by toggling the
GS-232A
off and on.
T
See the [
M
] (above) and the [
W
] (below) command. Start
automatic stepping routine (both azimuth and eievation):
turn rotator to next sequentially memorized azimuth (or az-el
pair, for the [
W
] command), wait sss seconds, and turn to
next angle (or pair), etc. This command works only if a long-
form [
M
] or [
W
] has been issued since power-up or the last
reset.
N
Return serial number of currently selected memorized point
[
nnnn
], and total number of memorized points [
mmmm
],
in the form +
nnnn
+
mmmm
. Must be proceeded by either
a long-form [
M
] or [
W
], and a T command. Used only dur-
ing stepping (see [
T
] command).
The meaning of a “point” in this command following an [
M
]
command is only an azimuth angle, so in this case
nnnn
and
mmmm
can range up to “
3800
” (the limit of avail-
able RAM in the Control Interface). However, when eleva-
tion is involved, a “point” following a [
W
] command is rep-
resented by both an azimuth and an elevation angle, in which
case nnnn and mmmm can range up to only “
1900
,” since
each “point” is a pair of angles.
O
PERA
TION
C
OMMAND
L
IST