Omron NT31 Operation Manuals page 82

Connecting to the RS-232C Port at the Host
C1000H/C2000H backplate mounted type: C500-LK203
[Setting the rear switches]
5V supply
ON
OFF
I/O port
RS-422A
RS-232C
Synchronization
Internal
External
Terminator
OFF
ON
CTS
0V
External
@ I/O port selection (selector switch)
Set this to "RS-232C".
@ Unit #, parity, and transfer code
8
(DIP SW1-1 to SW1-7)
7
6
Set SW1-1 to SW1-7 to "OFF" ("0").
5
SW1
4
3
2
1
ON
@ Synchronization (selector switch)
Set this to "Internal".
8
7
6
SW2
5
4
@ Communications speed
3
2
(DIP SW2-1 to SW2-4)
1
Set these switches to "0010" to select
ON
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 (selector switch)
Set this always to "0V" (ON).
Section 4-1
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