TECHNICAL BULLETIN
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[Issue No.] FA-A-0147-A
(5) Built-in Ethernet port communications
*1
Item
Precaution
Replacement method
Reference
File transfer function (FTP
server)
The security function has been
enhanced from the password
registration function to the file
password 32 function. For this
reason, the keyword-set
subcommand, that
sets/displays/clears the file access
password, is no longer supported.
Use the FTP commands, passwd-rd
and passwd-wr, that
set/display/clear the read/write
passwords of the file password 32
function.
QnUCPU User's Manual
(Communication via Built-in
Ethernet Port)
*1: This applies when the QnUDE(H)CPU is replaced with the High-speed Universal model QCPU.
(6) Functions
Item
Precaution
Replacement method
Reference
Security function
The security function, that limits
accesses to the files in the CPU
module, has been enhanced from
the password registration function to
the file password 32 function.
Use the file password 32 function
instead of the password registration
function.
Section 3.19 in the
QnUCPU User's Manual
(Function Explanation,
Program Fundamentals)
Latch data backup to
standard ROM
If an extended SRAM cassette is
used and the memory capacity of
the standard RAM (drive 3) is larger
than that of the standard ROM, data
cannot be backed up using this
function.
Deselect the “Backup all files in the
internal of standard RAM” checkbox
in the PLC System tab of the PLC
parameter dialog box.
Section 3.29 (4) in the
QnUCPU User's Manual
(Function Explanation,
Program Fundamentals)
Battery life-prolonging
function
The battery life-prolonging function
is no longer supported. Without the
use of the function, the battery life is
as same as that of the
QnUD(E)(H)CPU.
The switch setting parameters are
ignored and the following operations
are performed.
Data held by the battery are not
cleared nor deleted.
The bits, b0 and b1, of SD119
(Battery life-prolonging factor) are
fixed to 0.
Section 3.26 in the
QnUCPU User's Manual
(Function Explanation,
Program Fundamentals)
QCPU User's Manual
(Hardware Design
Maintenance and
Inspection)
