Technical
Manual
Switch
Actuators
AKI/AKS/AKK
MDT technologies GmbH •
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Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
20
4.4.3
Logical
functions
The
following
illustration
shows
the
setting
options
at
the
ETS
‐
Software:
Illustration
14:
Logical
functions
The
logic
function
can
be
activated
with
one
or
two
objects.
The
objects
are
the
inputs
of
the
logic
block.
Furthermore
you
can
choose
between
an
AND
‐
function
and
an
OR
‐
function.
When
you
have
activated
the
logic
function,
the
logic
block
has
to
be
satisfied
before
switching
the
channel.
As
long
as
the
logic
function
is
not
satisfied,
the
channel
does
not
react
to
any
signal.
The
following
chart
shows
the
relevant
communication
objects:
Number
Name
Length
Usage
6
Logic
1
1
Bit
Logic
object
1,
is
the
first
input
for
the
logic
block
7
Logic
2
1
Bit
Logic
object
2,
is
the
second
input
for
the
logic
block
Chart
15:
Communication
objects
logic
According
to
the
chosen
logic
operation
only
one
or
both
objects
have
to
become
a
1
‐
signal.
The
following
chart
shows
the
both
logic
operations
with
two
objects:
AND
‐
Connection
OR
‐
Connection
Logic
1
Logic
2
Channel
switchable?
Logic
1
Logic
2
Channel
switchable?
0
0
No
0
0
No
0
1
No
0
1
Yes
1
0
No
1
0
Yes
1
1
Yes
1
1
Yes
Chart
16:
Logic
operations
