Cpu Module Data Backup/Restoration Function; File Transfer Function (Ftp Client); Event History Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

CPU module data backup/restoration function

The following is the list of special relay areas relating to the CPU module data backup/restoration function.
No. Name
SM1350 CPU module data backup
*1
status flag
SM1351 CPU module data backup
*1
execution request
SM1356 Retry status flag for CPU
module data automatic
*1
backup
*1 There are restrictions on the firmware version of the CPU module and software version of the engineering tool. ( Page 747 Added
and Enhanced Functions)

File transfer function (FTP client)

The following is the list of special relay areas relating to the file transfer function (FTP client).
No. Name
SM1392 FTP client connection
*1*2
status
*1 There are restrictions on the firmware version of the CPU module and software version of the engineering tool. ( Page 747 Added
and Enhanced Functions)
*2 The Process CPU with firmware version "13" or later supports this special relay area.

Event history function

The following is the list of special relay areas relating to the event history function.
No. Name
SM1464 Event history logging
*1
restriction status
SM1466 Event history logging
restriction status of the CPU
*1
module (minor error)
SM1467 Event history logging
restriction status of the CPU
module (information,
*1
warning)
*1 There are restrictions on the firmware version of the CPU module and software version of the engineering tool. ( Page 747 Added
and Enhanced Functions)
Data stored
Off: Not being executed
On: Being executed
OffOn: Backup requested
OnOff: Backup completed
Off: Not being executed
On: Being executed
Data stored
Off: Not connected
(disconnected)
On: Connected
Data stored
Off: Not restricted
On: Restricted
Off: Not restricted
On: Restricted
Off: Not restricted
On: Restricted
Details
This relay turns on during the backup of the CPU
module.
• At the timing when this relay turns from off to on,
the backup of the CPU module is executed.
• This relay turns off at the completion of the backup
of the CPU module.
This relay turns on during the retry of the automatic
backup of the CPU module.
Details
This relay turns on when the connection with the FTP
server is established. This relay turns off when the
connection with the FTP server is cut off.
Details
Turns on when the event history logging has been
restricted. The relay remains on even after the
restriction is lifted. Restricted modules can be
identified in SD1464 to SD1467. SM1466 turns on
when the event history logging of the CPU module is
restricted and the event category is error (minor
error), and SM1467 is turned on when the event
history logging of the CPU module is restricted and
the event category is information or warning.
Turns on when CPU module event history logging
whose event category is error (minor error) was
restricted. The relay remains on even after the
restriction is lifted.
Turns on when CPU module event history logging
whose event category is information or warning was
restricted. The relay remains on even after the
restriction is lifted.
Appendix 4 List of Special Relay Areas
Set by (setting
timing)
S (Status change)
S (Status change)/
U
S (Status change)
Set by (setting
timing)
S (Status change,
END processing)
A
Set by (setting
timing)
S (Status change)
S (Status change)
S (Status change)
APPX
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