Nexstar SynScan instruction manual Hand Control, Notes, Description, PC Command ASCII, Response

The SynScanT" telescopes are designed to receive control commands sent from a computer via the RS-232 port and RS-232 cable. Once connected, the SynScanTMcan be controlled by most popular planetarium software program. The SynScanTMwill communicate with the personal computer at 9600 bitslsec, no parity and stop bit. All angles are communicated with 16 bit angle and communicated using ASCII hexadecimal.

		I		Hand Control		Notes
	Description		PC Command ASCII
				Response
				X#	Useful to check
1
	~ o t Azmo-Alt				10 characters sent.
					B=Command. 12AB=Azm,
					comma, 4000=Alt If
					command conflicts with slew
					limits; there will be no action.
A,
1	Goto Ra-Dec				Scope must be aligned I
					command conflicts with slev
					limits, there will be no action
	Get Azm-Alt	'7		l	characters returned,
					12AB=Azm, comma,
					4000=Alt, #
	Get RA-Dec		E	34AB, 12CE#	Scope must be aligned
	Cancel Goto		M	1#
	11s ~ o t ino Progress		L	or I #	o = N ~ l=Yes:. " o is~ ASCII
					(characterzero
	Is Alignincnt Complete		J	0# or 1#	O=No, l=Yes
	HC version		V	-I	Two bytes representing V2.2
	StopIStart Tracking		Tx		Alt-Az tracking requires
			x= 0 (Tracking off)		alignment
			x= 1 (Alt-Az on)
			X= 2 (EQ-N)
			x= 3 IEO-S)
				#

32-bit get Azm-Alt

L

z

34AB0500,

34AB0500,

12CE0500#

The last two characters will always be zero.

The last two characters n i l alwnys be zero