Mitsubishi MELSEC L Series User Manual page 113

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(c) When the number of times remote password mismatch occurs is large
1) When the number of times notification of a remote password mismatch
is received exceeds the number of times specified in buffer memory
address 8204 (200C
automatically. (The connection signal (X12) turns OFF.)
After confirming the remote password registered in the QCPU and the
remote password specified in the external device execute line
connection again.
2) When the number of times notification of a remote password mismatch
is received exceeds the accumulated count value (buffer memory
address 8205 (200D
processing. (The line and modem are not disconnected.)
(when communicating using MC protocol)
• An error code (7FE8
transmission error code storage area (address 602/618 (25A
• The CHn side error occurrence signal (XE/XF) turns ON and the ERR
LED lights up.
(When communicating using GX Developer)
• An error code (7FE8
error code storage area (address 545 (221
• The CHn side error occurrence signal (XE/XF) turns ON and the ERR
LED lights up.
3) The accumulated number of times up to the present a remote password
mismatch occurred (accumulated count value in the Q series C24) can
be checked in the area where the accumulated count of unlock process
abnormal completion is stored (address 8956 (22FC
4) The user should clear the accumulated number of times up to the
present a remote password mismatch occurred using one of the
following methods.
• Set the accumulated count of unlock processing abnormal completion
to "0" on the GX Configurator-SC's modem function monitor/test
screen.
• Write "0" in the buffer memory area where the accumulated count of
unlock process abnormal completion is stored (address 8956 (22FC
POINT
If the CHn side ERR occurrence signal (XE/XF) for the Q series C24 turns ON and
the ERR LED lights up, this could indicate improper access from the external
device.
See also an example of measures taken on the programmable controller CPU side
described in (12).
REMARKS
Refer to the User's Manual (Basic) for the method for turning off the Q Series C24's
ERR LED when it lights up.
3 COMMUNICATIONS BY THE MODEM FUNCTION
), the Q Series C24 disconnects the line
H
)), the Q Series C24 executes the following
H
) is stored in the buffer memory's MC protocol
H
) is stored in the buffer memory's modem function
H
/26A
H
).
H
)).
H
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).
H
)).
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