Omron NT620S Operation Manual page 58

Connection to a PC by the NT Link (1:1)
2-6-3 PC Switch Settings
When the NT620S/620C and PC are connected to each other, set the conditions
at the PC CPU so as to enable the NT link communications.
The settings at the PC are the same regardless of whether the connection at the
NT620S/NT620C is an RS-232C type or RS-422A type. The following is a brief
description of the setting method.
S C-series C200HS, C200HX/HG/HE, CPM1, CQM1
When connecting an NT620S/NT620C and a C200HS, C200HX/HG/HE,
CPM1, or CQM1 CPU unit, set the communication conditions in the PC system
setting area. Write the settings directly from the peripheral tool (e.g. SYSMAC
support tool) to the PC system setting area (data memory).
The switch settings made to enable "PC system setting" are described here.
For details on PC system setting area operations, refer to the manual for the
PC you are using (page 19).
[Switch settings] (C200HX/HG/HE, CQM1)
DIP switch settings
[PC system setting area settings] (C200HX/HG/HE, CPM1, CQM1)
In accordance with the CPU unit and port used for connection to the NT620S/
NT620C, write the appropriate numerical value to the PC system setting area
(data memory).
PC side
RS-232C port of
C200HX/HG/HE, CQM1
Port A of C200HX/HG/HE
Port B of C200HX/HG/HE
CPM1
RS-232C port communication condition settings
Set DIP switch 5 to OFF (right side) to enable
the PC system settings.
Channel # Writing Value
DM6645 4000
DM6655
DM6550
DM6650
Section 2-6
Settings
NT link (1:1) is
used. used.
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