Vxi Check; Che Ck Message Check - Racal Instruments 2151 Manual

FUNCTIONAL
CHECK
9
The
functional
check
tests
the operation
of
many
of
the instrument's
circuits to
establish
whether
the instrument
is
functioning
correctly.
The
procedure should be followed
when
the
instrument
is first
taken
into use,
and
after transportation
to
a
new
location.
1 1
does not
check that
the
instrument
is
operating
to the published
specification.
Detailed
specification
tests are given
in the
Maintenance Manual.
Switch
the instrument
on,
it
will
then
set
itself
to
the
initialized
state.
VXI Check
10
The
procedure
which
follows checks the
ability of
the instrument
to
accept,
process
and
send
IEEE
488.2 messages
via the
VXI.
H
Connect
the
controller
to
the
VXI
interface via
its
communication
medium
(e.g.
GPIB,
RS232, Ethernet
etc.).
It
is
assumed
that the
logical
address
of
the instrument
is
02
(to
change
the
instrument address
see
"SETTING
THE LOGICAL ADDRESS
AND
INTERRUPT
PRIORITY SWITCHES").
See your
VXI
Interface Device
manual
for
details
on
how
the 2151/2051's
logical
address
is
mapped
to
an
external address,
(it
is
assumed
in
the following
instructions that the
logical
address
is
mapped
directly
to
the external
address).
The
interrupt switch should be
set
to
a corresponding interrupt handler within
the interface
device.
12 Successful completion
of
the
VXI
check
proves that the instrument's
VXI
interface
is
operating
correctly
and
the instrument
is
responding. The
procedure does not
check
that
all
the device-dependent
commands
can be
executed. However,
if
the
VXI
interface
works
correctly
and
the instrument
operates
correctly, there
is
a high
probability
that
it
will
respond
to
all
device-dependent
commands.
CHECK
Message Check
13 Switch the instrument and
the controller
ON. The
red
FAILED
indicator will light
for
approximately two
to three seconds
and
then
go
off after the
instrument has
finished
its
self-test. If
the indicator does not
light, or
it
remains
on,
there
is
a
fault
on the
VXI
board.
The amber
ACTIVE
indicator
should
flash
when
the
SLOT
0 controller configures the
system
(after
five
seconds)
and then remain
off.
If
the
indicator does
not
flash,
or
if
it
flashes
continuously, there
is
a
fault
on the
VXI
board.
2151
OPS
A1571/DA
3-5