Omron NT20, User Manual

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46
Connecting to the RS-232C Port at the Host Section 2-6
Settings at the Host When using the Host Link method, the settings shown below must be made at
the host (depending on the Unit, some of these settings may not be neces-
sary, or settings not shown here may be necessary).
Note (1) Set the Host Link baud rate up to 115,200 bps with the memory switch at
the NT20.
(2) The 1-to-N setting enables BCC (Block Check Character). It is not actu-
ally possible to connect more than one NT20 in a single Host Link.
The setting methods for each Unit are described below.
Connecting to a C-series
Host Link Unit C200H, C200HS, and C200HE/HG/HX (-Z)E Rack-mounted Unit:
C200H-LK201-V1
Setting the Front Switches
Set each switch with a flat blade screwdriver so that the values or symbols in
the setting value window agree with the following.
Setting the Rear Switches
Item Switch Setting
I/O port RS-232C
Baud rate Set the same baud rate as for the NT20. (See note 1.)
Transfer code ASCII, 7 data bits, 2 stop bits
Parity Even
1-to-1/1-to-N
1-to-N (See note 2.)
Command level Level 1, 2, 3
Unit # 00
LK201
RUN
RCV
XMT
ERROR
SW1
0 0
5 2
•
Unit # (SW1, SW2)
Set these switches to 0.
•
Command level, parity, and transfer code (SW4)
Set this switch to 2.
•
Baud rate (SW3)
Set this switch to 5 to select 9,600 bps.
Set this switch to 6 to select 19,200 bps.
SW3
SW2
SW4
ON
1
CTS selector switch
External
0 V (ON)
•
1-to-1/1-to-N selection (DIP switch)
Set pin 3 to ON.
•
CTS selection (selector switch)
Set this always to 0V (ON).
2
3
4