Error Using List Editor Function On The Link System - Mitsubishi Electric GOT-A900 Series Operating Manual

21. ERROR DISPLAY AND CORRECTIVE ACTIONS FOR LIST EDIT

21.3 Error using list editor function on the link system

Error No.
Time-out error:
2
No response to the request
Process cancel:
4
New process request was given to the list editor function while the CPU is processing.
Sum check error:
5
A sum check error from the link communication has occurred.
PLC No. error:
16
There is no station corresponding to the PLC number.
19 This error may occur when the ACPU is reset during monitoring.
Remote error:
24 Although remote stop/pause is performed from the computer link unit, remote run/stop
is additionally performed.
Link error:
32
While the slave station is monitoring the master station, the master station is reset.
EEPROM failure:
34
The EEPROM, cannot be written due to EEPROM failure.
Device
Description
number
Link card error
M9210
(for master station)
M9224 Link status
M9227 Loop test status
Device
Description
number
Link card error
M9211
(for local station)
M9240 Link status
M9257 Loop test status
When the list editor function is used on the link system, the "PLC communication error
( **)" may appear. In this case, check the error details and the corrective actions.
Error message
If error number "25" appears, the following causes are possible. Check the details and
the corrective actions.
(1) When connected to the master station
OFF: Normal
ON : Error
OFF: Online
ON : Offline, station-to-station test,
or self-loopback test
OFF: Not executed
ON : Normal loop test and sub-
loop test are being executed.
(2) When connected to the local station
OFF: Normal
ON : Error
OFF: Online
ON : Offline, station-to-station test,
or self-loopback test
OFF: Not executed
ON : Normal loop test and sub-
loop test are being executed.
Details
The control depends on whether there is an error at the
hardware of the link card. The link card in the CPU link unit is
judged at the CPU. Replace the link unit.
The control depends on whether the master station itself is
online or offline, or in the station-to-station mode or the self-
loopback mode. Check the mode switch.
The control depends on whether the master station itself is
executing the normal loop test or the sub-loop test.
Details
The control depends on whether there is an error at the
hardware of the link card. The link card in the CPU link unit is
judged at the CPU. Replace the link unit.
The control depends on whether the local station itself is online
or offline, or in the station-to-station mode or the self-loopback
mode. Check the mode switch.
The control depends on whether the local station itself is
executing the normal loop test or the sub-loop test.
21 - 5
MELSEC
Action
Check the cable wiring.
Perform correct key operations on the
GOT.
There may be noise interference.
Check the system again.
Check the PLC number setting. Set
the correct number.
Perform the monitor setting again.
Perform the remote run/stop/pause
from either unit.
Perform the monitor setting again.
Replace the EEPROM with a new
one.
GOT