Error Code List; Error Codes 6101 To 6409 - Mitsubishi Electric FX Series Training Manual

Error Code List

Error Code List
A.3
When an error has been detected in the PLC, the error code is stored in special registers D8060
to D8067 and D8438. The following actions should be followed for diagnostic errors.
Represented here are some of the most common error codes.
A.3.1

Error codes 6101 to 6409

Error
PLC
hardware error
Communication
error between
PLC and program-
ming device
(FX and FX
2N
only)
Serial
communication
error
A - 10
Special Error
Register Code
0000
6101
6102
6103
6104
6105
D8061
6106
6107
0000
6201
6202
D8062
6203
2NC
6204
6205
0000
6301
6302
6303
6304
6305
6306
6307
D8063
6308
6312
6313
6314
6320
Description
No error
RAM error
Operation circuit error
I/O bus error (M8069 = ON)
Powered extension unit 24 V failure
(M8069 = ON)
Watchdog timer error
I/O table creation error (CPU error)
When turning the power ON to the
baseunit, a 24V power failure occurs in
a powered extension unit. (The error
occurs if the 24V power is not supplied
for 10 seconds or more after main
power turn ON.)
System configuration error
No error
Parity, overrun or framing error
Communication character error
Communication data sum check error
Data format error
Command error
No error
Parity, overrun or framing error
Communication character error
Communication data sum check error
Communication data format error
Command error
Communication time-out detected
Modem initialization error
N:N network parameter error
Parallel link character error
Parallel link sum error
Parallel link format error
Inverter communication error
Appendix
Corrective Action
—
Check for the correct con-
nection of extension cables.
Check user program. The
scan time exceeds the value
stored in D8000.
Check the power supply for
the powered extension
units.
Check the number of the
connected special function
units/blocks. A few special
function units/blocks are lim-
ited the number to connect.
—
Check the cable connection
between the programming
device and the PLC. This
error may occur when a
cable is disconnected and
reconnected during PLC
monitoring.
—
b
Inverter communication,
computer link and pro-
gramming: Ensure the
communication parame-
ters are correctly set ac-
cording to their applica-
tions.
b
N:N network, parallel
link, etc.: Check pro-
g r a m s a c c o r d i n g t o
applications.
b
Remote maintenance:
Ensure modem power is
ON and check the set-
t i n g s o f t h e AT
commands.
b
Wiring: Check the com-
munication cables for
correct wiring.
MITSUBISHI ELECTRIC