![background image](http://html1.mh-extra.com/html/omron/srm1-programing-02-2001/srm1-programing-02-2001_programming-manual_742414282.webp)
4-3
Section
CPM2A/CPM2C Communications Functions
262
CPM2A Communications Switch Setting
Turn OFF the communications switch when using 1:1 NT Link communications.
One-to-one NT Link communications will not be possible if the communications
switch is ON.
Communications switch
RS-232C port
ON
OFF
CPM2C DIP Switch Settings
Turn OFF pin 1 of the DIP switch when using 1:1 NT Link 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