Fluke 8505A - Programming Command Details

8500
Series
TabS©
2A-1.
Programming
Instructions (cont)
The "F"
character is used to
specify the type of
filtering and the
enabling of a time-out
(for the filter settling
time). This
time-out causes a
delay between a
trigger command
received and the
actual reading taken, in the
continuous
trigger modes,
the time-out will
occur before each
reading
is initiated. The following "F" modifier
command
characters
are used:
©
00
00
00
00
Slow filter,
time-out disabled.
Fast filter, time-out
disabled.
Bypass
filter.
Slow filter, time-out
enabled
Fast filter, time-out
enabled
500
ms).
50 ms).
TRIGGER
COMPAND
CHARACTERS
The "T"
characters specify the instrument’s
trigger mode.
These
characters determine whether
samples taken
l(
are line
synchronous (every 4 or 5 ms)
or line asynchronous
(approximately every 1 .7 ms),
whether single or
continuous readings are to be
taken.
NOTE
When line
asynchronous modes are selected,
the
display
will be turned
off
to
save
time; the front
panel switches are then ignored.
#
When in the
continuous mode,
any
character (except
"%"
HALT) will be
ignored
by
the
instrument (8502A).
When in the
Single Reading mode
("TO" or
"T2"),and IEEE Group
Execute
Trigger
command, a
"?"
or
"@"
character, or a
TTL trigger (for the
8502A-08A)
must be sent
for each
reading.
With the
Continuous
Reading mode ("T" or
"T1"), use
of the "GET"
command,
"@"
or a
TTL trigger will
start
continuous readings.
2A-11