Operation Error Messages & Corrective Actions - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
19.24 Operation Error Messages & Corrective Actions
The following is a list of error messages which the system displays after an operation is performed.
Relevant Menu Screen
• All menus
• Entry code
• Monitor/test
(user-registered
devices)
• Monitor/test
(setting change)
• Memory cassette
transfer
• PLC Status
• Monitor/test
(setting change)
• Memory cassette
transfer
• Memory cassette
transfer
• Memory cassette
transfer
(consistency check)
• Memory cassette
transfer
(reading/writing)
404
English Japanese
Entry Code error
The Entry Code
is not set
Incorrect
Entry Code!
The wrong device
is registered
PLC is running
Memory Cassette
is
write-protected
Write error
Read error
Fatal error
occurred
Memory Cassette
is misconnected
The Entry Code
is set in the
Internal Memory
Programs match
Programs
don't match
Transfer
completed
Transfer
failed
19 FX3U-7DM (Display Module)
19.24 Operation Error Messages & Corrective Actions
Corrective Action
Cancel the entry code, then attempt the operation
again.
No entry code has been registered.
Entry codes cannot be registered from the
display module. A programming tool such as GX
Developer, etc., is required to register entry
codes.
The entered entry code does not match the
registered entry code. Verify the registered entry
code, then enter the correct entry code.
A device has been specified that does not exist
among the system information (system signal 1)
"user-registered device" monitor devices. Check
the program.
Stop the PLC, then attempt the operation again.
Turn the memory cassette's write-protected
status to OFF, then attempt the operation again.
Writing failed. Verify that the memory cassette is
properly installed.
Reading failed. Verify that the memory cassette
is properly installed.
→ Refer to Subsection 19.24.1
Turn the PLC power OFF, install the memory
cassette, then attempt the operation again.
Remove the memory cassette, restart the unit
→
(power OFF ON), then use the programming
tool to cancel the entry code in the internal RAM.
The memory cassette program matches the RAM
program.
The memory cassette program does not match
the RAM program.
Transfer successful.
Check if the memory cassette is properly
installed.
for details.