Data Backup For The Cpu Module Change Function - Mitsubishi Electric Q01UCPU User Manual

3.31.1

Data backup for the CPU module change function

This function backs up all the data (only the file register files and latch-target device data) in a CPU module to a
memory card or SD memory card. If a memory card or SD memory card is used in a running system, users can stop its
operation, change the card, and back up data to another card.
(1) Data backup using contacts
(a) Setting method
To back up data using contacts, turn on the devices set in the PLC Module Change Setting window, opened by
clicking the button on the PLC system tab of the PLC parameter dialog box.
Item
Backup Start Setup
At the rise of the selected device among the items shown
*1
in the right column, backup is ready to start.
Contact
At the rise of the selected device among the items shown
Backup Start Contact
in the right column, backup enters execution status.
Select data to be backed up stored in any of memories
Backup Target Data
shown in right column.
Format memory card
Select whether to format a memory card before backup.
before backup
Set a title for a backup data file stored in a memory card
*5
Title Setting
or SD memory card.
*1 The CPU module enters the STOP status at the rise of the backup start setup contact, the backup start contact cannot
be turned on in the sequence program.
*2 Set different devices for the backup start setup contact and backup start contact.
*3 These are the setting range for the default number of points. The setting range will be M (0 to 61439) and B (0 to 0EFFF)
when the number of internal user device points is set to the maximum, 60K points.
*4 If no backup target data is selected, only device data and system data are backed up.
*5 A title is used to identify backup data. The title of the backup data stored in a memory card or SD memory card can be
checked on the window opened by selecting [Delete PLC Data] from the menu using a programming tool.
260
Description
*4
Setting range
*2
Available devices
• X (0 to 1FFF)
*3
• M (0 to 8191)
*3
• B (0 to 1FFF)
• Program memory (drive 0)
• Standard RAM (drive 3)
• Standard ROM (drive 4)
Formatted
Selected/deselected
32 characters (16 in two-byte
characters)
Default
-
All drives are backed up.
Deselected
A title based on the time of backup
is set.
(Example) If data are backed up at
12 p.m. on October 1, 2008,
"200810011200" is set.