Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 439

Function
Functions different Remote operation
(modified or
restricted) from
those of the process
mode
Boot operation
External input/output forced on/off function
Test function
Data logging function
Multiple CPU system function
Security function
Latch function
Label access setting from external device
Program restoration information write
selection
SFC function
SLMP communication
Ethernet function
Inter-module synchronization function
Description
Using a contact When the backup mode setting is enabled in the CPU
parameter, both systems may be recognized as being
mismatched in the system consistency check even if the
remote operation is simultaneously performed on the systems
because their operating statuses are mismatched depending
on the timing.
Using an In a redundant system, the operation target of remote
engineering tool operations depends on the operation mode and type.
Use the boot operation only to simultaneously start up both
systems. When one system is restarted and the boot
operation is used, an error occurs.
Forced on/off is reflected to the input/output devices of both
systems and external outputs by registering or canceling
forced on/off for the control system. (Forced on/off is reflected
to both systems without setting tracking transfer setting in the
CPU parameter.)
Changes in values of devices and labels are transferred
(tracking) from the control system to the standby system
before the END processing. If the systems are switched
between the change and the tracking transfer, the change is
not reflected on the new control system.
In a redundant system, the data logging function collects data
only in the control system regardless of the operation mode.
This function cannot be used in redundant mode.
The security key setting is written or deleted on both systems
individually, regardless of the operation mode.
When the systems are switched, the new control system and
the new standby system start the value in "Interval Setting at
Time Setting" in "Device Latch Interval Setting" from 0.
In the transfer setup of external devices that communicate
with the CPU module through GOT, SLMP, or other methods,
select "Control System/Standby System", "System A/System
B", or "Not Specified" to start a communication with a global
label name specified.
Only when the firmware versions of the CPU modules of both
systems support the program restoration information write
selection, "Not to Write" can be selected.
This function cannot be used in redundant mode.
• There are notes for system switching when the system IP
address matching function is not used.
• If a remote operation command is executed, the CPU
modules enter different operating statuses and thus
systems cannot be switched.
• For SLMP communications via the built-in Ethernet port of
the CPU module, when communications are performed to
the other system that cannot respond (power-off, reset, or
tracking cable disconnection), a timeout error may occur.
• The SLMP frame send instruction (SP.SLMPSND) performs
communications using IP addresses of the system A and B.
File transfer • This function performs communications using IP addresses
function (FTP client) of the system A and B.
This function cannot be used in redundant mode.
Reference

Page 491 Remote
Operation
Page 493 Boot
Operation
Page 494 External Input/
Output Forced On/Off
28
Function

Page 498 Data Logging
Function




Page 1008 Added and
Enhanced Functions

Page 501 SLMP
Communication
MELSEC iQ-R Ethernet
User's Manual
(Application)

28 FUNCTIONS
437