Omron NT631 Operation Manuals page 79

Connecting to the RS-232C Port at the Host
C200H/C1000H/C2000H CPU mounting type: 3G2A6-LK201-EV1
[Setting the rear switches]
SW1
SW2
SW3
@ Unit #, parity, and transfer code
(DIP SW1-1 to SW1-5)
Set SW1-1 to SW1-5 to "OFF" (0).
* Parity is fixed at Even Parity. Transfer code is
fixed at ASCII 7 data bits and 2 stop bits.
@ Communications speed (DIP SW2-1 to SW2-4)
Set these switches to "0010" to select 19200 bps.
Set these switches to "1010" to select 9600 bps.
(0: OFF 1: ON)
@ 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to "OFF" ("0") (1-to-N).
@ Instruction level (DIP SW2-7, SW2-8)
Set these switches to "ON" (1).
(Levels 1, 2, and 3 are enabled.)
@ CTS selection (DIP SW3-1 and SW3-2)
Set SW3-1 to "ON" (1), and SW3-2 to "OFF" (0).
(Set this always to "0V".)
@ Synchronization (DIP SW3-3 to SW3-6)
Set SW3-3, SW3-5, and SW3-6 to "ON" (1), and
SW3-4 to "OFF" (0). (Set these to "Internal".)
Section 4-1
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