Discrete
I/O
Page
|
44
10
I/O
DISCRETES
The
I/O
Discretes
screen
is
used
to
configure
the
I/O
Discretes
parameters
to
permit
automated
and/or
remote
monitoring
and
control
of
the
I/O
Discretes.
Each
modem
is
equipped
with
1
input
discrete
and
1
output
discrete
interfaced
to
the
top
two
pins
on
the
4
pin
molex
power
connector.
Refer
to
the
users
manual
for
diagram
and
electrical
specifications.
Figure
25
I/O
Discretes
Configuration
Page
10.1.1
DISCRETE
INPUT
CONFIGURATION
Input
1
Status:
This
displays
the
status
of
the
discrete
input
as
sensed
by
the
modem
firmware.
Input
Function:
This
allows
selection
of
the
possible
automated
actions
based
on
the
input
status.
a)
Reset
Modem
if
Grnd
–
If
the
modem
senses
the
input
as
“Ground”,
the
modem
will
be
fully
reset.
This
signal
is
debounced
for
approximately
1
second
before
action
is
taken.
This
setting
is
a
“safe”
choice
without
an
external
device,
as
the
modem
contains
a
pull
‐
up
resistor
and
the
signal
will
be
held
to
“Not
Ground”
if
not
driven
by
an
external
device.
b)
Reset
Modem
if
Not
Ground
–
If
the
modem
senses
the
input
as
“Not
Ground”,
the
modem
will
be
fully
reset.
This
signal
is
debounced
for
approximately
1
second
before
action
is
taken.
This
setting
should
only
be
used
if
a
external
device
is
used
to
normally
drive
this
input
to
Ground.
The
modem
will
continuously
reset
if
the
external
device
is
not
present.
