Omron NT31 Series, Operation Manuals

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71
Connecting to the RS-232C Port at the Host
Section 4-1
C1000H/C2000H backplate mounted type: C500-LK203
[Setting the rear switches]
ON
ON
SW1
SW2
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”.
@
Synchronization (selector switch)
Set this to “Internal”.
@
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.)
5V supply
ON
OFF
@
Unit #, parity, and transfer code
(DIP SW1
-
1 to SW1
-
7)
Set SW1 - 1 to SW1 - 7 to “OFF” (“0”).
@
CTS selection (selector switch)
Set this always to “0V” (ON).
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8