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4.A2CCPU
MELSEC-A
I
No.
Name
Function
(11)
Memory selection switch
• The switch used to set the type of memory (RAM installed in the A2C or EP-
ROM) used to store programs.
• RAM in the A2C : Set the switch in the OFF position.
• EP-ROM
:
Set the switch in the ON position.
Memory Selection Switch Setting
Internal RAM
EP-ROM
0-
Memory
0-
Memory
V~electron
switch
/ - - '
~Iection
switch
. /
[fi
E!t:
~ON
- O N
SW
sw
(12)
Battery connector
• The connector used to connect a battery lead connector.
For connector connection, see Section 5,2.
(13)
RS-422 connector
• Connector where a peripheral device is connected.
• Connect a peripheral device to writelread, monitor. or test a program with a
peripheral device.
(14)
Memory connection
• The socket used to install an EP-ROM.
socket
For memory installation, see Section 5.1.
(15)
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.
4-81

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