Technical
Manual
Temperature
Controller
SCN
‐
RT1
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
16
Alarm
There
are
two
parameterize
able
alarms,
when
the
alarm
function
was
activated.
The
frostalarm
is
for
the
notification
of
the
lower
temperatures
and
the
heatalarm
for
the
notification
of
the
upper
temperatures.
Both
alarms
have
a
separate
communication
object
with
the
size
of
1
Bit.
The
chart
shows
the
relevant
communication
objects
for
the
alarms:
Number
Name
Length
Usage
3
Frostalarm
1
Bit
send
frostalarm
4
Heatalarm
1
Bit
send
heatalarm
Chart
10:
Communication
objects
alarm
Messages
The
message
function
is
almost
identical
to
the
alarm
function,
but
less
in
its
priority.
There
are
two
messages
available,
when
the
message
function
was
activated.
These
two
messages
can
be
parameterized
separately.
The
dynamic
range
of
the
message
function
is
much
bigger
than
the
one
of
the
alarm
function.
So
it
is
also
possible,
to
realize
running
turn
over.
Both
messages
have
an
own
communication
object
of
the
size
1
bit.
These
communication
objects
are
shown
in
the
chart
below:
Number
Name
Length
Usage
1
Higher
message
value
1
Bit
Send
the
achievement
of
the
higher
reporting
limit
2
Below
message
value
1
Bit
Send
the
achievement
of
the
lower
reporting
limit
Chart
11:
Communication
objects
messages