Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 94

CPU Units
Pin No. Setting
7 Simple backup type
8 Always OFF. ---
DIP Switch Pins 4 to 6
Pin No. Setting
4 Always OFF. Use with this pin set to OFF.
5 Always OFF. Use with this pin set to OFF.
6 Always OFF. Use with this pin set to OFF.
Pin No. Setting
4 ON Peripheral port communications
parameters set in the PLC Setup
are used.
OFF Peripheral port communications
parameters set using Programming
Console or CX-Programmer
(Peripheral bus only) are used.
5 ON RS-232C port communications
parameters set using a CX-Pro-
grammer (Peripheral bus only) are
used.
OFF RS-232C port communications
parameters set in the PLC Setup
are used.
6 ON User-defined pin. Turns OFF the
User DIP Switch Pin Flag (A39512).
OFF User-defined pin. Turns ON the
User DIP Switch Pin Flag (A39512).
!Caution Always touch a grounded metal object to discharge static electricity from your
Note
58
Function
Set these pins as described below. Settings are different for Duplex CPU and
Single CPU Systems.
■ Duplex CPU Systems
Function
■ Single CPU Systems
Function
body before changing the settings on the DIP switch during operation.
1. When pin 1 is set to ON, writing is prohibited for the user program and all
parameter data (PLC Setup, I/O table registration, etc.). Moreover, it is not
possible to clear the user program or parameters even by executing a
memory clear operation from a Programming Device.
2. In a Duplex CPU System, automatic transfer at startup can be executed
only from the active CPU Unit. Duplex initialization is performed between
the two CPU Units after the automatic transfer, and the user program, pa-
rameters, and I/O memory are matched. If pin 2 it set to ON, I/O memory
(AUTOEXEC.IOM, ATEXEC@@.IOM) will also be transferred automatical-
ly. (Refer to the Programming Manual.) The program (AUTOEXEC.OBJ)
and Parameter Area (AUTOEXEC.STD) must both be on the Memory
Card, but the I/O memory (AUTOEXEC.IOM, ATEXEC@@.IOM) does not
need to be.
3. Simple Backup Operations
In Duplex Mode, the simple backup function can be executed only from the
active CPU Unit. Duplex initialization is not executed between the two CPU
Application
Used to determine the simple backup type. (See
note 3.)
Normally turn this pin OFF.
---
Application
Do not set these switches. Instead, use the
PRPHL and COMM switches on the Duplex Unit
and A39512 in the Auxiliary Area.
Application
Turn ON to use the peripheral port for a device
other than Programming Console or CX-Pro-
grammer (Peripheral bus only).
Turn ON to use the RS-232C port for a Program-
ming Device.
Set pin 6 to ON or OFF and use A39512 in the
program to create a user-defined condition with-
out using an I/O Unit.
Section 2-4
Default
OFF
OFF
Default
OFF
OFF
OFF
Default
OFF
OFF
OFF