Omron NT620S Operation Manual page 53

Connection to a PC by the Host Link
Connecting to a CPU
I/O port
selector
switch
RS-232C
RS-422A
40
S C-series CjjH, CVM1/CV-series (-EV1)
Set the operating conditions with the PC System Setting functions when a
CjjH, CVM1/CV-series host link unit is connected to the NT620S/620C. The
PC system settings can be made directly from the peripheral tool (LSS etc.) or
the PC system setting information created with a peripheral tool can be trans-
ferred to the CPU.
The following describes the switch settings so as to enable the PC system set-
tings. For the details of the PC system settings, refer to the "SYSMAC CjjH
User's Manual (Programming)" (W176-E1) and the "SYSMAC CVM/CV-Se-
ries Support Software Operation Manual (Details)" (W196-E1).
(1) C-series CjjH
No switch settings are required when connecting to a C-series CjjH CPU.
(2) CVM1/CV-series
Only the CVM1/CV-series CPUs of the "-EV1" or later version can be con-
nected to the NT620S/620C.
When connecting to a CVM1/CV-series CPU, set the switches as given be-
low.
[Setting the front switches]
S I/O port selection (selector switch)
Set this to "RS-232C".
S System setting (DIP SW4)
To effect the existing DIP switch settings, set SW4 to "ON".
To effect the existing PC system settings, set SW4 to "OFF".
Note In the case of CPU units manufactured before June
1995 (lot No. "jj65"), the factory settings of the DIP
switches do not agree with the factory settings for the
PC system settings.
S The factory settings for the DIP switches are :
2400 bps, 1 stop bit, even parity, 7-bit data length.
S The factory settings for the PC system settings are :
9600 bps, 2 stop bits, even parity, 7-bit data length.
For CPU units manufactured from July 1995 (lot No.
"jj75") onward, the factory settings for the DIP
switches are also 9600 bps and 2 stop bits.
: C20H/C28H/C40H/C60H
: CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EVj
CVM1-CPU11-EVj
CVM1-CPU21-EVj
Section 2-5