Mitsubishi Electric MELSEC iQ-F FX5 - 8 FUNCTION LIST

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8 FUNCTION LIST
8 FUNCTION LIST
The following table lists the functions of the CPU module.
: Supported, : Limitedly supported, : Not supported
Function Description Compatible CPU module Reference
FX5S FX5UJ FX5U/
FX5UC
Program capacity setting Set to change program capacity.  Page 50
Initial device value setting Sets the initial values of devices used in the program
directly (not via the program) to the devices.
 Page 77
Device/label memory area setting Sets the capacity of each area in the device/label
memory.
 Page 81
Device/label access service
processing setting
Sets the number of execution times of the device/label
access service processing executed by END processing,
with parameter.
 Page 86
Firmware update function Updates the firmware of the module.  Page 92
Online
change
Changing ladder
blocks while online
Writes the part of a program edited on the ladder editor
using the engineering tool to the CPU module in units of
ladder blocks. Edited contents spanning multiple portions
can be written to the CPU module at once.
 Page 111
Interrupt
function
Multiple interrupt
function
When an interrupt occurs while an interrupt program
triggered by another cause is running, stops the program
if its priority is lower than that of the new interrupt, and
runs the higher-priority program whenever its execution
condition is satisfied.
 Page 115
Input interrupt delay
function
Execution of the interrupt program can be delayed in
units of 1 ms.
 Page 117
Scan monitoring function
(Watchdog timer setting)
Detects an error in the hardware and program of the CPU
module by monitoring the scan time.
 Page 120
Constant scan Keeps the scan time constant and executes program
repeatedly.
 Page 122
Remote
operation
Remote RUN/STOP Changes the CPU module status to the RUN/STOP/
PAUSE status externally while the RUN/STOP/RESET
switch of the CPU module is in RUN status.
 Page 124
Remote PAUSE
Remote RESET Resets the CPU module externally while the CPU module
is in the STOP status.

Latch function Holds the contents of the device and label of the CPU
module when the power is turned ON etc.
 Page 129
RAS
function
Self-diagnostics
function
Self-diagnoses the CPU module to see whether an error
exist or not.
 Page 134
Error clear Batch-clears all the continuation errors being detected. 
Event history
function
Collects operations executed and errors detected from
the modules, and saves them in the CPU module,
expansion board, expansion adapter, and intelligent
module. The saved logs can be checked in chronological
order.

Clock function This function is used for the time management in the
function which the system operates such as the date of
the event history function, and data logging function.
 Page 143
Security function Protects resources stored in PCs and resources in the
units in the system of the FX5 from illegal access by a
third party such as theft, alteration, accidental operation
and unauthorized execution.
 Page 147
GX Works3 Operating
Manual
Data logging function Collects data at the specified interval or any desired
timing, and stores them as a file on the SD memory card.

*1
 Page 149
Memory dump function Saves the data in the devices of the CPU module at a
desired timing.

*1
 Page 196
Internal buffer capacity setting Sets the capacity of the area (internal buffer) used by the
system to temporarily store the results of data logging
and memory dump processing.
 Page 205