Keithley 707A Instruction Manual page 89

IEEE-488 Programming
5.9.6
E
—
Edit
pointer
Purpose To
set the edit pointer
Format
Ee
Parameters
n=() Present relay setup
n=l
to
100
Stored relay setup
Default Upon
power-up
or
after
receiving a
DCL, SDC,
or
ROX
command,
the instrument defaults
to
EO
(present relay setup).
Description
With
the edit pointer,
you
can
select
which
setup
is
affected
by subsequent
close (C)
and open
(N)
commands.
This can be
the present relay setup
(zero)
or
one
of
the stored
setups (1-100).
Programming
notes
1
.
The
edit
pointer value
is
independent of the
Relay
Step
and
Memory
Step
values.
2.
When
using the
edit pointer,
it
is
not necessary
to use the
COPY
key,
because you
are closing/
opening
crosspoint relays or setting/clearing stored crosspoints directly and not
just
turning
on/off crosspoint
LEDs.
Example
PRINT
#1,
"OUTPUT 18;E0X"
'
Point to relays
PRINT
#1,
"OUTPUT
18;
E50X"
'
Point
to
Stored relay setup
50
5.9.7 F
—
Enable/disable
triggers
Purpose To
enable/disable
triggers.
Format
Fn
Parameters n=0
Disable
triggers
n=l Enable
triggers
Default Upon power-up
or
after
receiving a
DCL, SDC,
or
ROX
command,
the instrument defaults
to
FO
(triggers disabled).
Description With
the
F command,
you
control
whether
the
Model
707
A
responds
to
a
trigger
(from the
exter-
nal trigger
connection or over the
IEEE-488
bus).
A
trigger
increments
the
Relay Step
pointer
and
copies the setup indicated
by
the
new
value
from
memory
to the relays.
Programming
notes
ft is
good programming
practice to disable triggers before changing
the trigger source.
Example
PRINT
#1,
"OUTPUT
18;
FOX"
'
Enable
triggers
PRINT
#1
,
"OUTPUT
18
;
FIX"
'
Disable
triggers
5-19