Mitsubishi Electric GT11 User Manual page 261

Error message
Address error
No corresponding program
Memory cassette check
Step over error
Setting error
Not selectable
Operation error
Device error
Identical coil
Command error
Command setting error
Memory protect
Capacity over
No END command
PLC communication error
PLC COMM ERROR
PLEASE CLOSE
PC write error
PLC is running
PC No. error
Description
In machine language writing, the address which was
tried to be written was at the write-protect area.
The specified command was not found.
In communication with the CPU for clearing the keyword
or writing the parameter, the memory cassette is
insufficient or not mounted.
The set step number is larger than the maximum step
number.
Setting value is not correct.
The function which cannot be executed was selected.
The set device symbol is incorrect.
The specified command was not found.
The device number exceeds the range.
The identical coil is found in the sequence
program.
When the program is read, it cannot be converted to the
proper command.
The command set at the time of read, write or insert is
not correct.
When writing in the Write or the Insert/Delete mode, the
memory protect switch in the memory cassette is ON.
Memory assignment set in the parameter exceeded the
capacity of the memory cassette.
There is no END command.
When the list editor function is started, proper
communication with the PLC is not made.
When the editor for MELSEC-A is started, proper
communication with the CPU is not made.
Correct writing was not made in the Write or Insert
mode.
Writing, insertion or deletion was attempted
during running of the CPU.
The PLC number is set to other station.
Set the correct address.
Check the program.
(1) Mount the memory cassette properly.
(2) Replace the memory cassette with a new
one.
Set the correct step number.
Set the correct value.
Select other function.
Perform the correct key operation.
(1) Set the correct device symbol.
(2) Set the number within the range of CPU
device.
Proceed to the next operation if it does not
affect the control.
Correct the program if it affects the control.
When the CPU has detected the error, stop
running of the operation. After resetting the
CPU, check the command around the error.
Write the correct command. (For check of the
error step, refer to 14.3.27.)
Set the correct command.
Turn OFF the memory protect switch in the
memory cassette.
Set the parameter within the capacity of the
memory cassette.
Write the END command at the last step of the
program.
Restart the list editor function.
If communication is not made properly, check
the following:
(1) GOT main unit
(2) Connection of the cable
(3) CPU main unit (if any error has occurred)
Close and restart the editor for MELSEC-A.
If communication is not made properly, check
the following:
(1) GOT main unit
(2) Connection of the cable
(3) CPU main unit
(1) Check the setting of RAM/ROM.
(2) Check the RAM mounting.
(3) Check the setting of the memory protect
switch in the CPU.
Stop the CPU.
Change the PLC number and set the station for
access to the host.
14.3 MELSEC-A List Editor
14.3.28 Error messages and corrective actions
Corrective action
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