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ifm
Basic Device Manual AS-i ControllerE M4 Target V15
2015-10-30
Error description
Flash errors: error codes F20...F30
249
Error message
Cause(s)
Remedy
F26
Flash system timeout
The operating system found a timeout
during the execution of a flash
command.
Possible cause: access to the flash
memory which is currently processing
commands.
► Repeat command.
F27
Erasure PLC sectors in Flash
The attempt to delete the sectors in
which the PLC program is stored failed.
Possible causes:
1. Sectors were disabled to protect
them against overwriting (AC1325
and AC1326).
Command not possible.
2. Access to the flash memory which
is currently processing commands
► Repeat command.
3. Flash memory faulty
► Replace the device and project
again.
F28
Storage PLCPRG in Flash
Storing the PLC program in the flash
memory failed.
Possible causes:
1. Sectors were disabled to protect
them against overwriting (AC1325
and AC1326).
Command not possible.
2. Access to the flash memory which
is currently processing commands.
► Repeat command.
3. Flash memory faulty
► Replace the device and project
again.
F29
Storage of the remanent data in the
flash failed
Storing the remanent data in the flash
module failed (%MB... [Var_Retain]).
Possible causes:
1. Access to the flash memory which
is currently processing commands
► Repeat command.
2. Flash memory faulty
► Replace the device and project
again.
F30
PLC program write-protected
The attempt to store the PLC program
in the flash memory failed.
Possible cause: The PLC program was
protected against overwriting.
► Remove the write protection with
the program
freeflash.pro
.