User`s manual

Error code list Troubleshooting
MELSEC System Q, Hardware 11 – 53
2700
REMOTE PASS.FAIL
The count of remote password mismatches rea-
ched the upper limit.
 Collateral information

Common Information: —
 Individual Information: —
 Diagnostic Timing
Always
Check for illegal accesses. If any illegal access is
identified, take actions such as disabling com-
munication of the connection.
If no illegal access is identified, clear the error
and perform the following. (Clearing the error
also clears the count of remote password mis-
matches.)
– Check if the remote password sent is correct.
– Check if the remote password has been
locked.
– Check if concurrent access was made from
multiple devices to one connection by UDP.
– Check if the upper limit of the remote pass-
word mismatch count is too low.
ON ON Continue QnU with Built-
in Ethernet port
2710
SNTP OPE.ERROR
Time setting failed when the programmable con-
troller was powered ON or reset.
 Collateral information

Common Information: —
 Individual Information: —
 Diagnostic Timing
When time setting function is executed.
– Check if the time setting function is set up
correctly.
– Check if the specified SNTP server is operat-
ing normally, or if any failure has occurred on
the network connected to the specified SNTP
server computer.
OFF/ON Flicker/
ON
Stop/
Continue
Error
code
Error contents and cause Corrective action
LED status
CPU
status
Corre-
sponding
CPU
RUN ERR.
Tab. 11-4: Error code list (2000 to 2999) for PLC CPUs of MELSEC System Q