Omron NSJ CONTROLLERS - 03-2008 Operation Manual page 230

Backup Function
Auxiliary Area Bits
and Words
Name Address
Verification A34312 Turns ON if there are any differences in the data being veri-
Mismatch fied. Remains OFF is the data is the same.
Flag
File Memory A34313 Turns ON while any of the following operations is being
Operation executed. OFF when none of them are being executed.
Flag
Memory Card detection starting.
CMND instruction sending a FINS command to the local
CPU.
FREAD/FWRIT instructions executing.
Program replacement using the control bit in the Auxiliary
Area.
Simple backup operation.
If this flag is ON, write and comparison operations to the
Memory Card cannot be executed.
EM File A344 Contains the starting bank number of EM file memory
Memory (bank number of the first formatted bank).
Starting
This number is read when starting to write data from a
Bank
Memory Card. If the largest bank number for which there is
an EM file for simple backup (BACKUPE@.IOM, where @
represents consecutive bank numbers starting from 0) is
the same as the largest bank number supported, the EM
Area will be formatted as file memory using the value in
A344. If the maximum bank numbers are different, the EM
Area will be returned to it's unformatted (not file memory)
status.
Communica- A20200 • OFF while performing a write or verification operation for a
tions Port to
Enabled A20207
• Turn ON when the write or verification operation has been
Flags
Note If all of the Communications Port Enabled Flags
Communica- A203 to Stores the result of communications with the Unit/Board
tions Port A210 when executing a write or verification operation for a Mem-
Completion ory Card.
Codes
Communica- A21900 • Turns ON if an error occurred in communications with the
tions Port to
Error Flags A21907
• Turns OFF if communications with the Unit/Board were
Simple A397 If a write for a simple backup operation fails, A397 will con-
Backup Write tain the Memory Card capacity that would have been
Capacity required to complete the write operation. The value is in
Kbytes. (This indicates that the Memory Card did not have
the specified capacity when the write operation was
started.)
0001 to FFFF hex: Write error (value indicates required
capacity from 1 to 65,535 Kbytes).
A397 will be cleared to 0000 hex when the write is com-
pleted successfully for a simple backup operation.
0000 hex: Write completed normally.
Description
Memory Card.
completed.
remain OFF when a write or verification operation for
a Memory Card, the write or verification operation
was not executed (i.e., an error occurred).
Unit/Board when executing a write or verification opera-
tion for a Memory Card.
normal when executing a write or verification operation for
a Memory Card.
Section 11-1
199