Pc Switch Settings - Omron NT30 Operation Manual

Connection to a PC by Host Link via RS-422A

2-6-5 PC Switch Settings

Correct use
Connecting to a Host Link Unit
48
When the NT30/30C and PC are connected to each other, set the conditions at
the PC Host Link Unit or the CPU Unit as given in the table below.
The following is a general description of switch settings.
Refer to the manual for respective Units for details of the switch settings.
Item
I/O port
Baud rate
Transfer code
Parity
1-to-1/1-to-N
Command level
Unit #
*1 Set the Host Link baud rate to 9,600 bps or 19,200 bps with the memory
switch for the baud rate. For details, refer to Selecting the Host Link Baud
Rate (page 86).
*2 The 1-to-N setting enables BCC (Block Check Character). It is not possible to
connect more than one NT30/30C in a single Host Link.
When using the CVM1/CV series, always set CPU Unit execution processing
(execution control 2) in the PC Setup to synchronous processing.
Two models of Host Link Units are available: Rack-mounting Unit and a CPU-
mounting Unit. The switch settings differ according to the model of Host Link Unit.
Set the switches according to the model of the Unit.
S C200H Rack-mounting Host Link Unit: C200H-LK202-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 switch settings indicated in the table
above.
2
5
Switch Setting
RS-422A
Set the same baud rate as the NT30/30C. (*1)
ASCII 7 data bits, 2 stop bits
Even
1-to-N (*2)
Level 1, 2, 3
00
S Unit # (SW1, SW2)
Set these switches to 0.
S Command level, parity, and transfer code (SW4)
Set this switch to 2.
S Baud rate (SW3)
Set this switch to 5 to select 9,600 bps.
Set this switch to 6 to select 19,200 bps.
Section 2-6