Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 174

Basic Procedures
Settings for Single CPU
Systems
138
d) Set the communications switch on the Duplex Unit. When connecting
a Programming Console to the peripheral port, set the PRPHL switch
to OFF. When connecting the CX-Programmer to the RS-232C port,
set the COMM switch to ON.
Note When connecting anything other than a Programming Console to
the peripheral port, set the PRPHL switch to ON. When connecting
anything other than the CX-Programmer to the RS-232C port, set
the COMM switch to OFF.
SW
ON
Note In a Duplex CPU System, pin 4 (peripheral port communications settings) on
the DIP switches on the fronts of the CPU Units are disabled and the PRPHL
setting on the Duplex Unit is used instead. Also, pin 5 (RS-232C port commu-
nications settings) on the DIP switches on the fronts of the CPU Units are dis-
abled and the COMM setting on the Duplex Unit is used instead.
2. CPU Unit Settings
a) Set the DIP switches on the fronts of the two CPU Units to the same
settings.
b) Confirm that both CPU Units are the same model.
The DIP switch on the front of the CPU Unit must be set, along with other set-
tings. Be particularly careful when setting the peripheral port and RS-232C
port settings.
Turn OFF when connecting
a Programming Console to
the peripheral port or the
active CPU Unit.
PRPHL
COMM
A39512
RSV
Turn ON when connecting
the CX-Programmer to
the RS-232C port or the
active CPU Unit.
Section 4-2
Programming Console
Programming Device