Datasheet

8
CJ1M-CPU1@
External Interface
A CJ1-series CPU Unit provides two communications ports for external interfaces: a peripheral port and an RS-232C port.
Peripheral port
The peripheral port is used to connect a Programming Device (including a Programming Console) or a host computer. It can also be used as an
RS-232C port by connecting a suitable cable, such as the CS1W-CN118 or CS1W-CN@26. The connector pin arrangement when using a
connecting cable for an RS-232C port is shown below.
Pin No. Signal Name Direction
1 −−−
2 SD (TXD) Send data Output
3 RD (RXD) Receive data Input
4 RS (RTS) Request to send Output
5 CS (CTS) Clear to send Input
6 Reserved None −
7 −−−
8 −−−
9 SG (0V) Signal ground −
Connector hood FG Protection earth −
LED Indicators
DIP Switch
(Inside the battery compartment)
Used for initial settings.
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.
Memory Card Eject Button
Press the eject button to remove te
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.
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.
5
1
9
6
CS1W-CN118