Mitsubishi Electric GT16 User Manual page 404

Error
Error message
code
SIO status error. Confirm
403 communication pathway or
modules.
Specified station access is out of
406
range. Confirm station no.
Accessed other network.
407
Change network setting.
Cannot perform operation
410 because of PLC run mode.
stop the PLC.
Memory cassette is
411 writeprotected. Check the
memory cassette.
Cannot read/write device
412 protected by keyword. Remove
keyword.
420 E71 specification is ASCII.
E71 is set as read-only. Clear
421
setting.
Not communicating between
422 CPU and E71. Confirm CPU
error.
Insufficient network table
423
information. Add station no.
19 - 16
19. TROUBLESHOOTING
19.2 Error Message and System Alarm
Either of the overrun error, parity bit error or flaming error was
generated when the RS-422 / RS-232 communication was received.
Confirm the cable omission, status of the PLC.and the transmission
speed of the computer link.
Channel No. is not displayed in error code or error message in the case
an error occurs when using the multi-channel function.
• Station numbers other than master/local station are specified at the
CC-Link connection (via G4).
• A PLC CPU other than QCPU is accessed.
• Confirm the station number of the project data.
• When monitoring other networks
Reconfigure the [Routing Information Setting] of GT Designer3 or the
[Routing parameters] of GX Developer.
The operation, which could not be performed during RUN of PLC CPU,
was performed.
Stop the PLC CPU.
The memory cassette installed in the PLC CPU is EPROM or E
and it is in a protected status.
Confirm the memory cassette installed in PLC CPU.
The key word is set in PLC CPU.
Cancel the key word.
[ASCII code] is selected in [Ethernet operations] of the PLC side
setting.
Select [Binary code].
The Ethernet module on the PLC side is set in read-only.
Set the Ethernet module on the PLC side to write-enabled.
PLC CPU error. Communication between PLC CPU and the PLC side
Ethernet module impossible.
Confirm whether there is error in PLC CPU by GX Developer etc.
(Confirm buffer memory)
The station number set in the project data and the station number set in
the switching station No. device do not exist in the Ethernet setting of
GT Designer3.
• Add the station number set in the project data to the Ethernet setting
of GT Designer3.
• When using the station No. switching function, check the data of the
switching station No. device.
When the station number specified in the switching station No.
device is not set in the Ethernet setting, add the station number to
the Ethernet setting.
When the station number does not exist in the system, change the
data of the switching station No. device.
(Set the station number so that it becomes the same as the station
number of the PLC side Ethernet module set in the parameter setting
of GX Developer.)
Action
Channel No.
storage
2
PROM,