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CPU Units Section 3-1
3-1-2 Components
CJ1 and CJ1-H CPU Units
Note Always connect the connector covers to protect them from dust when not
using the peripheral or RS-232C port.
CONTROLLER
CJ1G-CPU44
SYSMAC
PROGRAMMABLE
ERR/ALM
RUN
COMM
INH
PRPHL
OPEN
PERIPHERAL
BUSY
MCPWR
PORT
LED Indicators
DIP Switch
(Inside the battery compartment)
Used for initial settings.
Battery Compartment
Memory Card Power
Supply Switch
Press the power supply
switch to disconnect
power before removing
the Memory Card. Also,
press the Memory Card
Power Supply Switch to
perform an easy backup
operation.
Memory Card Eject Button
Press the eject button to remove the
Memory Card from the CPU Unit.
Memory Card Indicators
MCPWR (green): Lit when power is
supplied to Memory Card.
BUSY (orange): Lit when Memory
Card is being accessed.
Peripheral Port
Connected to Programming Devices,
such as a Programming Console or host computers.
Memory Card Connector
Connects the Memory Card to the CPU Unit
RS-232C Port
Connected to Programming Devices
(excluding Programming Consoles),
Host Computers, general-purpose external
devices, Programmable Terminals, and other
devices.
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