Specifications
Page 5-2
1770-805
MODE
SELECTION
KEYBOARD
MODULE
1770~FCC
SERIES
AiD
INSERT
KEYTOP
OVERLAY
11
PLC2
MODE
1770~KCA
12
ALPHANUMERIC
MODE
1770~KAA
SELECT
DESIRED
MODE
1770-T1
MODE
SELECTION
KEYBOARD
MODULE
1770~FAC
SERIES
AiD
INSERT
KEYTOP
OVERLAY
10
PLC
MODE
1770~KBA
11
PLC~2
MODE
1770~KCA
12
ALPHANUMERIC
MODE
1770~KAA
SELECT
DESIRED
MODE:
1770-T2
MODE
SELECTION
KEYBOARD
MODULE
1770~FDC
SERIES
B/A
INSERT
FOR
USE
WITH
THE
MODE
KEYTOP
OVERLAY
FOLLOWING
PROCESSORS:
10
PLC
1770~KBA
PLC
11
PROCESSOR
1770~KCB
12
ALPHANUMERIC
MODE
1770~KAA
MINI~PLC~2.
PLC~2
MINI~t'LC~2/15
PLC~2/20
(LP11
PLC~2/20
(LP2)
PLC-
2130
SELECT
DESIRED
MODE
1770-T3
FIGURE
5-2-
Mode Selection Menus
(T1, T2 and T3)
10069
mode.
After
Alphanumeric
mode
is selected,
an
Alphanumeric
Mode
Options
list
will
be
displayed.
This
display
lists several
options
that
can be selected
before
beginning
alpha-
numeric
operations.
The
Alphanumeric
mode
operating
commands
for
all
Industrial
Termi-
nal Systems are
fully
described
in
Section
6.
5.3
MODE
SELECTION WITH A T4 SYSTEM
A 1770-T4
Industrial
Terminal
System
pro-
vides
automatic
mode
selection
at
power-up.
Series A, Rev B and
later
systems
first
deter-
mine
the
setting
of
the
parity
switches.
If
the
switches
are set
for
ODD, EVEN,
or
NONE,
the
Industrial
Terminal
System
immediately
enters
the
Alphanumeric
Mode.
The
baud rate, parity,
and
line
frequency
are
determined
by
the
switch
group
settings
on
the
Industrial
Ter-
minal
System. If
the
switches
are in
the
NOT
USED
position
(both
up),
the
Industrial
Ter-
minal
System
tries
to
communicate
with
a
PLC-3 Processor. It sends a message
out
Channel
B
three
times
at each baud rate
starting at
9600.
While
attempting
to
communi-
cate
with
a
PLC-3
Processor, it
displays
a
prompt
on
the
screen. If a PLC-3
Processor
is
connected,
the
Industrial
Terminal
System
automatically
enters
PLC-3
mode
at
the
baud
rate
specified
by
the
Processor.
If
a PLC-3
Processor
is
not
connected,
the
Industrial
Terminal
System enters
Alphanu-
meric
mode
after
trying
all
baud
rates.
The
baud
rate and
line
frequency
are
determined
by
the
switch
group
settings
on
the
Industrial
Terminal
System. Parity selected is NONE.
Earlier
Industrial
Terminal
Systems
look
for
a
PLC-3
Processor
before
determining
parity
switch
settings.
If
a
PLC-3
Processor
is
con-
nected,
the
Industrial
Terminal
System
auto-
matically
enters
PLC-3
mode
at
the
baud rate
specified
by
the
Processor.
If
a PLC-3
Processor
is
not
connected,
the
Industrial
Terminal
System enters
Alphanu-
meric
mode
after
trying
all
baud
rates.
The
baud rate, parity, and
line
frequency
are
deter-
mined
by
the
switch
group
settings
on
the
Industrial
Terminal
System.
The
mode
can be
changed
manually
at
any
time
using
the
Mode
Selection
Menu
(Figure
5-3).
This
menu,
displayed
by
pressing
[SHIFT][MODE]
on
the
keyboard,
lists
the
two
modes
which
can be selected.
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