Omron Programmable Terminals NT631 Setup Manual page 68

Connecting to the RS-232C Port at the Host
Setting the Rear Switches
ON
CTS selector switch
External
0 V (ON)
C1000H(F)/C2000H Rack-mounting Unit: 3G2A5-LK201-EV1
Setting the Front Switches
Local
Setting the Rear Switches
I/O port
RS-422A
RS-232C
Synchronization
Internal
External
Terminator
OFF
ON
CTS
0 V
External
• 1-to-1/1-to-N selection (DIP switch)
Set #3 to ON.
1
2
3
4
• CTS selection (selector switch)
Set this always to 0 V (ON).
Host
• Mode control (key switch)
Set this to host link.
• I/O port selection (selector switch)
Set this to RS-232C.
• Unit # (DIP SW1)
8
Set SW1-1 to SW1-5 to OFF (0).
7
6
5
SW1
4
3
2
1
ON
• Synchronization (selector switch)
Set this to Internal.
8
7
• Communications speed
6
SW2
5
(DIP SW2-1 to SW2-4)
4
3 Set these switches to 0010 to select
2
19,200 bps.
1
ON
Set these switches to 1010 to select
9,600 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 0 V (ON).
Section 4-1
51