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2-1
Section
c) Use a CPM2C-CN111 or CS1W-CN118 Connecting Cable to con-
nect to the RS-232C port. The Peripheral port and RS-232C port
can be used simultaneously with the CPM2C-CN111.
8. Communications Switches
The Communications Switches control the communications settings for the
peripheral port and RS-232C port. (The standard settings are 1 start bit, 7
data bits, 2 stop bits, even parity, and 9,600 bps baud rate.)
Switch
settings
Peripheral port communications
RS-232C port
communications
SW1
SW2
co
u ca o s
OFF
OFF
Programming Console connection
The settings in the PC
S
(DM 664
OFF
ON
Other Programming Device:
The settings in the PC Setup
(DM 6650 to DM 6654) are used.
g
Setup (DM 6645 to
DM 6649) are used.
ON
OFF
Programming Console connection
The standard settings are
d
ON
ON
Other Programming Device:
The standard settings are used.
g
used.
Be sure that Communications Switch 2 is OFF when connecting a Programming
Console. The green PRO indicator on the front of the CPU Unit will be lit.
9. Battery
This battery backs up memory in CPU Units with an internal clock. The bat-
tery is connected when the Unit is shipped.
Note A battery is not included in CPU Units without an internal clock, but a
CPM2C-BAT01 Battery can be purchased separately and connected
to backup memory.
10. Low Battery Detection Switch
This switch enables or disables the detection of a low-battery error. When a
battery is not connected, disable low-battery detection by sliding the switch
back (toward the battery).
Switch position
Low-battery detection
Forward (away from battery) Error detection enabled
Back (toward battery)
Error detection disabled
11. Expansion I/O Connector
Connects the PC’s CPU Unit to an Expansion I/O Unit. Up to 5 Expansion
Units can be connected to a CPU Unit. A cover for the Expansion I/O Con-
nector is included with the CPU Unit.
Disabled
Enabled
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