VTK
‐
VS
‐
BA
‐
004e
‐
B
|
User
Manual
MDS
3200A
|
Product Description
21
4.4
Memories
of
the
MDC
3200A
The
MDC
controller
unit
contains
several
memories
to
save
parameter
set
‐
ups.
The
first
one
is
the
RAM
(Random
Access
Memory).
Here
the
parameters
of
the
current
dispense
process
will
be
saved.
This
memory
will
be
erased
when
the
controller
is
switched
of
or
disconnected
from
power.
When
starting
again,
the
RAM
will
load
the
data
from
the
first
of
eleven
parameter
memory
sets
saved
on
the
EEPROM
(Electrically
Erasable
Programmable
Read
Only
Memory)
.
This
first
parame
‐
ter
set
is
also
called
the
“EEPROM
current
working
parameter
configuration”,
or
short
also
“work
‐
ing
configuration”
or
“EEPROM
working
configuration”.
The
parameter
set
in
the
“EEPROM
working
configuration”
is
usually
the
same
as
the
parameter
set
saved
in
the
RAM
memory.
When
using
the
touch
panel
to
program
the
controller,
the
two
memo
‐
ries
will
always
have
the
same
contents.
The
only
way
to
create
a
difference
in
the
parameter
set
saved
in
the
RAM
and
in
the
EEPROM
working
configuration
is
by
using
some
special
commands
through
the
RS
‐
232C
(page
38)
.
The
remaining
ten
EEPROM
memory
sets
can
be
used
to
saved
different
parameter
set
‐
ups
when
programming
the
controller
through
the
touch
panel
interface
(use
the
command
[save]
).
In
order
to
change
the
values
saved
in
the
EEPROM
working
configuration
you
may
use
the
MDC
keypad
(press
“enter”,
“pulse
parameter”)
.
Or
you
may
use
one
of
the
following
commands
via
RS
‐
232C:
“TRIGGER:SET:<Rising>,<Open
Time>,<Falling>,<Needle
Lift>,<Number
of
Pulses>,
<Delay>,1”
“TRIGGER:ASET:<Rising>,<Open
Time>,<Falling>,<Needle
Lift>,<Number
of
Pulses>,
<Delay>,1”
All
values
transmitted
to
the
MDC
3200A
by
one
of
the
following
two
commands
will
not
be
saved
in
the
EEPROM
working
configuration:
TRIGGER:SET:<Rising>,<Open
Time>,<Falling>,<Needle
Lift>,<Number
of
Pulses>,
<Delay>
TRIGGER:ASET:<Rising>,<Open
Time>,<Falling>,<Needle
Lift>,<Number
of
Pulses>,
<Delay>
Instead
it
will
remain
in
the
RAM
memory
until
overwritten
by
another
RS
‐
232C
command,
or
when
the
MDC
3200A
is
switched
OFF
and
the
EEPROM
is
read
out
into
the
RAM
during
restart.
The
reason
for
having
these
two
different
types
of
commands
(the
distinction
is
the
“1”
at
the
end)
is
that
it
takes
up
to
1
sec
to
save
the
parameter
set
in
the
EEPROM.
Please
be
aware
that
there
will
be
a
difference
between
the
parameter
settings
saved
in
the
RAM
and
in
the
EEPROM
working
configuration
when
using
the
command
TRIGGER:SET
(without
1)
through
the
RS
‐
232C.
This
may
explain
some
unexpected
behavior
of
the
system.
On
top
of
the
working
configuration
and
the
10
parameter
setups
there
is
another
parameter
set
‐
ting
saved
in
the
software
on
the
EEPROM.
This
is
called
the
“factory
setting”.
It
cannot
be
changed
by
the
user.
It
may
be
loaded
to
the
“working
configuration”
and
the
RAM
memory
after
major
dis
‐
turbances
of
the
system.
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