I
•
4.A2CCPU
--------------------
MELSEC-A
No. Name
Function
(9)
Memory
selection
switch
• The switch used to set the
type
of memory (RAMinstalled in the A2C or EP-AOM)
used
to
store
programs.
• RAM in the A2C : Set the switch in the OFF poeltlcn.
• EP-ROM : Set the switch in the ON position.
Memo,y
Selection
SwItch
Setting
Inte,nal
RAM Ep·ROM
0
2
v~emory
0
2
/MemOry
selection
switch
selection
swItch
n n
ON_
No-----
SW
sw
(10)
Battery
connector
•
The
connector
used
to
connect
a
battery
lead
connector.
For
connector
connection,
see
Section
5.1.
(11)
RS-422
connector
•
Connector
where
a
peripheral
device
is
connected.
•
Connect
a
peripheral
device
to
write/read,
monitor,
or
test
a
program
with
a
peripheral
device.
(12)
Memory
connection
• The socket used to install an EP-ROM.
socket
For
memory
installation,
see
Section
5.1.
(13)
Battery
•
The
battery
used
to retain
the
program
and
the
device
and
file
register
data
in
the
latch
range.
For
the
procedure
to
connect
a battery, see
Section
5.2.
(14)
Station
number
setting
•
Station
number
setting
switches
switches
STATION No.
• Set
station
number
00 to 64.
~
• Set
the
number
of
tens
of
station
number
to "X10".
• Set
the
number
of
units
of
station
number
to
"X1".
, ,'
Xl
•
When
the
station
is used as a
master
station,
set "00".
~
•
When
the
station
is
used
as a
local
station,
set "01 to 64",
1 o 9
(15)
Mode
select
switch
• By
switching
mode,
the
following
functions
are
available.
Betting Number Name DescriptIon
0
Online Automatic return set during normal operation.
1
Online
AutomatIc return not set durIng normal operation.
MODE
Offline DIsconnected host station.
2
6
7 8 9
A
3
Test mode 1 Forward loop test
~®g
4
Test mode 2 Reverse loop test
5
Test mode 3
Btetlcn-tc-stetlcn test (main station)
2 1 0 FE
•
Test mode 4 stettce-tc-etettcn test (subordinate etatlon)
7
Test mode 5 Self-loopback test
•
Not used
•
Not used
Ato
C Not usable
o to F
Not used
4-89
To Next Page
Loading...
