Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 370

CPU Unit Operation
Note
334
1. The I/O memory is held or cleared according to the status of the IOM Host
Bit and the setting for IOM Hold Bit Status at Startup in the PLC Setup
(read only when power is turned ON).
Auxiliary bit
PLC Setup setting
IOM Hold Bit Status
at Startup
(Programming Con-
sole address:
Word 80, bit 15)
Note I/O memory treatment depends on the status of the IOM Hold Bit at
the time the operating mode is changed (to or from PROGRAM
mode).
2. The forced status held or cleared according to the status of the Force Sta-
tus Hold Bit and the setting for Forced Status Hold Bit Status at Startup in
the PLC Setup.
Auxiliary bit
PLC Setup setting
Forced Status Hold
Bit Status at Star-
tup
(Programming Con-
sole address:
Word 80, bit 14)
Note Force status treatment depends on the status of the Forced Status
Hold Bit at the time the operating mode is changed (to or from
PROGRAM mode).
3. If online editing is performed, but the power supply to the CPU Unit is
turned OFF before the CPU Unit has completed backup processing, the
user program will require restoring when the power supply is turned ON
again. The BKUP indicator will light to indicate this. Refer to 6-6-10 Flash
Memory in the Programming Manual (W394) for details.
IOM Hold Bit (A50012)
Clear (OFF)
Clear At power ON: Clear
(OFF) At mode change: Clear
Hold
(ON)
Forced Status Hold Bit (A50013)
Clear (OFF)
Clear At power ON: Clear
(OFF) At mode change: Clear
Hold
(ON)
Section 9-1
Hold (ON)
At power ON: Clear
At mode change: Hold
At power ON: Hold
At mode change: Hold
Hold (ON)
At power ON: Clear
At mode change: Hold
At power ON: Hold
At mode change: Hold