Programming Guide

Digital Oscilloscopes Series
69
DISPLAY
HOR_POSITION, HPOS
Command /Query
DESCRIPTION
The HOR_POSITION command horizontally
positions the geometric center of the intensified
zone on the source trace. Allowed positions range
from division -7 to 7. If this would cause the
horizontal position of any expanded trace to go
outside the left or right screen boundaries, the
difference of positions is adapted and then applied
to the traces.
The VAB bit (bit 2) in the STB register is set if a
value outside the legal range is specified.
The HOR_POSITION query returns the position of
the geometric center of the intensified zone on the
source trace.
COMMAND SYNTAX
<exp_trace>: Hor_POSition <hor_position>
<exp_trace>: = {TA, TB, TC, TD}
<hor_position>: = -7 to 7 DIV
The range of the value is related to the size of the
screen. The range of the <hor_position> is related
to the magnification factors of command HMAG.
While the range after magnifying beyond the screen
could display, it will be adjusted to the proper
value.
QUERY SYNTAX
<exp_trace>: Hor_POSition?
RESPONSE FORMAT
<exp_trace>: Hor_POSition <hor_position>
EXAMPLE
The following instruction positions the center of
the intensified zone on the trace currently viewed
by Trace A (TA) at division 3:
Command message:
TA: HPOS 3
RELATED COMMANDS
HMAG