Action For An Incorrect Key Input; Error Messages And Corrective Actions - Mitsubishi Electric GOT2000 Series User Manual

15.4.14 Action for an incorrect key input

If an incorrect key is input, cancel the input contents.
■1. Operation
(1) Before touching the [GO] key (before reading/writing the input contents)
Before touching the [GO] key, touch the [CLR] key.
(2) After touching the [GO] key (after reading/writing the input contents)
Write the command again.
➠
Commands finalized by writing and inserting operations are revised (overwritten) with the program writing.

15.5 Error Messages and Corrective Actions

This section describes the error messages displayed when the MELSEC-FX list editor is executed, and corrective action.
Error Messeage
Can not display while protected.
Can not operate while protected.
PLC parameter error.
PLC communications error.
PLC is running.
Can not write.
Step number is out of a range.
Not found.
Not found.
Step overflow.
Command error.
Protected by a block password.
15 - 28
15.5 Error Messages and Corrective Actions
15.4.5 Writing commands
Description
The all-operation protect, anti-
plagiarism, or incorrect write protect
keyword is set.
An FX PLC parameter is defective.
The communication with the FX PLC is
defective.
A writing operation etc. has been made
while the FX PLC is running.
• The memory to write to is EPROM.
• The protect switch of the EEPROM
is on.
The specified step number exceeded
the maximum number.
The specified command cannot be
found.
The specified device cannot be found.
The program may exceed the available
space. (Writing is not executed.)
An invalid command (non-existent
command) was specified.
The sequence program is protected by
a block password at the PLC reading.
POINT POINT POINT
How to erase an error message
An error message is not erased even if the cause of the error is eliminated.
To erase an error message, touch a key on the MELSEC-FX list editor screen.
Corrective action
• Check the protected operation.
• Clear the keyword protection or delete the
keyword.
➠
15.4.11 Keywords
Set correct parameters in the FX PLC.
• Check the FX PLC, cable, and GOT for
abnormality.
• Check whether the communication settings are
correct or not.
Stop the FX PLC.
• Set other than EPROM for the memory to write to.
• Switch off the protect switch of the EEPROM.
Specify a step number below the maximum value.
Proceed to the next operation.
Proceed to the next operation.
Check the program memory space and delete
commands to keep it within the space.
➠
15.4.7 Deleting commands
Input the correct command.
Release the block password for the sequence
program.