Technical
Manual
Room
Temperature
Controller
SCN
‐
RT1
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
27
4.4.4
Blocking
objects
The
following
settings
are
available
at
the
ETS
‐
Software:
Illustration
15:
Blocking
objects
The
following
chart
shows
the
dynamic
range
for
this
parameter:
ETS
‐
text
Dynamic
range
[default
value]
comment
Heating
disable
object
Inactive
Active
activates
the
blocking
object
for
the
heating
process
Cooling
disable
object
Inactive
Active
activates
the
blocking
object
for
the
cooling
process
Chart
28:
Blocking
objects
Depending
to
the
adjusted
controller
type,
one
or
two
blocking
objects
are
available.
The
blocking
objects
disable
the
control
value.
The
blocking
objects
can
be
used
when
the
heating
or
cooling
system
shall
be
prevented
of
an
unwanted
start.
If
the
heating
must
not
start
at
special
situations,
for
example
when
a
window
is
opened,
the
blocking
object
can
be
used.
Another
usage
of
this
function
is
for
example
the
manual
blocking,
for
example
by
a
push
button,
in
case
of
a
cleaning
process.
The
blocking
objects
have
the
size
of
1
Bit
and
blocks
by
sending
a
logical
1
at
the
depending
communication
object.
The
chart
shows
the
relevant
communication
objects:
Number
Name
Length
Usage
14
Heating
disable
object
1
Bit
blocks
the
control
value
heating
15
Cooling
disable
object
1
Bit
blocks
the
control
value
cooling
Chart
29:
Communication
objects
blocking
objects