Manual

P ART T WO : COMMANDS
154 ISSUED: February 2005 WM-RCM-E Rev D
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 0 through 10. If the source trace was acquired in
sequence mode, horizontal shifting will only apply to a single segment
at a time.
If the multiple zoom is enabled, the difference between the specified
and the current horizontal position of the specified trace is applied to
all expanded traces. 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.
If the sources of expanded traces are sequence waveforms, and the
multiple zoom is enabled, the difference between the specified and the
current segment of the specified trace is applied to all expanded
traces. If this would cause the segment of any expanded trace to go
outside the range of the number of source segments, the difference is
adapted and then applied to the traces.
The VAB bit (bit 2) in the STB register (see table on page 225) 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.
N
N
O
O
T
T
E
E
:
: Segment number 0 has the special meaning “Show All
Segments Unexpanded”.
COMMAND SYNTAX
<exp_trace> : Hor_POSition <hor_position>,<segment>
<exp_trace> : = {F1,F2,F3,F4,F5,F6,F7,F8,TA,TB,TC,T
D,M1,M2,M3,M4} TA through TD are included for backward
compatibility with software designed for earlier LeCroy instruments.
These four mnemonics will not be returned in response to queries.
<hor_position> : = 0 to 10 DIV
<segment> : = 0 to max segments