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COMMAND REFERENCE PTU-D300 User’s Manual (v2.18.0)
Related Topics
• Position (relative offset and desired position queries): See Section 4.3.2
• Position resolution (units): See Section 4.3.3
• Position limits: See Section 4.3.4
• Position execution modes: See Sections 4.3.6, 4.3.7 and 4.3.8
• Position limit enforcement modes: See Section 4.3.5
4.3.2 Offset Position (relative offset)
Description
Specify desired axis position as an offset from the current position, or Query
the current axis position. Desired offset positions can be changed on-the-fly
without waiting for previous position commands to complete.
Syntax
Query desired pan position: PO<delim>
Set desired offset pan position: PO<position><delim>
Query desired tilt position: TO<delim>
Set desired offset tilt position: TO<position><delim>
Example
The following sends the pan axis to position -500, then sends it 1500
positions to the left:
PP-500 *
A *
PO * Current Pan position is -500
PO1500 *
A *
PP * Current Pan position is 1000
Related Topics
• Position resolution (units): See Section 4.3.3
• Position limits: See Section 4.3.4
• Position execution modes: See Sections 4.3.6, 4.3.7 and 4.3.8
• Position limit enforcement modes: See Section 4.3.5
4.3.3 Resolution per Position
Description
Query returns the axis resolution per position moved (in seconds/arc).
Syntax
Query pan resolution: PR<delim>
Query tilt resolution: TR<delim>
Example
Resolution can be determined by:
PR * 92.5714 seconds arc per position
1 sec arc = 1/(60 min arc * 60 sec arc) = .0002778°. So 92.5714 seconds
arc equals (92.5714 sec arc * .002778°) = 0.025716335°. Thus, to pan 21.3°
left requires a relative move of (21.3°/0.025716°) 828 positions, yielding
the following command:
PO828 *
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