
MULTICAL®
603
Kamstrup
A/S
∙
Technical
description
∙
5512
‐
2029_A1_GB_06.2017
147
12
Data
communication
12.1
MULTICAL
603
data
protocol
Internal
data
communication
in
MULTICAL
603
is
based
on
the
Kamstrup
Meter
Protocol
(KMP)
which
provides
a
fast
and
flexible
reading
structure
and
also
fulfils
future
requirements
to
data
reliability.
The
KMP
protocol
is
used
in
all
Kamstrup
consumption
meters
launched
from
2006
onwards.
The
protocol
is
used
for
the
optical
reading
head
and
via
plug
pins
for
the
module
area.
Thus,
modules
with
e.g.
M
‐
Bus
interface
use
the
KMP
protocol
internally
and
the
M
‐
Bus
protocol
externally.
Integrity
and
authenticity
of
data
All
data
parameters
include
type,
measuring
unit,
scaling
factor
and
CRC16
checksum.
Every
produced
meter
includes
a
unique
identification
number.
12.2
Optical
readout
head
The
optical
reading
head
can
be
used
for
data
communication
via
the
optical
interface.
The
optical
readout
head
is
placed
on
the
front
of
the
calculator
just
above
the
IR
‐
diode
as
shown
in
the
figure
below.
Note
that
the
optical
readout
head
includes
a
very
strong
magnet,
which
should
be
protected
by
means
of
an
iron
disc
when
not
in
use.
Various
variants
of
the
optical
readout
head
appear
from
the
list
of
accessories
(see
paragraph
3.1.1).
Power
‐
saving
in
connection
with
the
optical
readout
head
In
order
to
limit
the
power
consumption
of
the
circuit
around
the
IR
‐
diode,
the
meter
includes
a
magnet
sensor
which
switches
off
the
circuit
when
there
is
no
magnet
close
to
it.
12.3
Data
protocol
Utilities
and
other
relevant
companies
who
want
to
develop
their
own
communication
drivers
for
the
KMP
protocol
can
order
a
demonstration
program
in
C#
(.net
‐
based)
as
well
as
a
detailed
protocol
description
(in
English
language).
Содержание MULTICAL 603
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