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4-3
Section
CPM2A/CPM2C Communications Functions
254
Note
An RS-232C adapter is required for no-protocol communications on the periph-
eral port.
CPM2C DIP Switch Settings
Turn OFF pin 1 of the DIP switch when using no-protocol communications so
that communications through the RS-232C port are governed by the settings in
the PC Setup (DM 6645 to DM 6649).
Front View
CPU Unit with Relay Out-
puts via Terminal Block
CPU Unit with Transistor Outputs
via Fujitsu-compatible Connector
CPU Unit with Transistor Outputs
via MIL Connector
2. Input terminals
7. Communications port
8. Communications switch
9. Customize switch
5. Input indicators
6. Output indicators
3. Output terminals
4. Status indicators
2. Input connector
3. Output connector
7. Communications port
8. Communications switch
9. Customize switch
5. Input indicators
6. Output indicators
4. Status indicators
2. Input connector
3. Output connector
DIP switch for Units
with 10/20 I/O points
(8)
(9)
(8)
(9)
DIP switch for Units
with 32 I/O points
Pin settings
RS-232C port communications
Pin 1
p
OFF
Governed by the PC Setup
OFF
Governed by the PC Setup
(DM 6645 to DM 6649)
ON
Governed by standard settings
ON
Governed by standard settings
Note
An RS-232C Adapter is needed to perform no-protocol communications through
the peripheral port.
This section describes RS-232C connections.
The RS-232C port on the serial device and the RS-232C port of the CPM2A/
CPM2C or CPM1-CIF01 RS-232C Adapter are connected as shown in the fol-
Connecting the Cables