Mitsubishi MELSEC LJ71C24, Руководство пользователя

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15 - 20 15 - 20
15 TROUBLESHOOTING
Protocol
Error code
(Hexa-
decimal)
Error
Description
Signal
name
Corrective action
MC
Non-
proce-
dural
Bi-
direc-
tional
Pre-
defined
7144
H
Monitor data write
error
•
Monitoring was requested before the
device to be monitored was written.
PRO.
•
Write the device to be monitored before
issuing a monitor request.
7145
H
Monitor PC No.
error
•
The written PC No. and PC No. in the
monitor request are different.
C/N
7146
H
Monitor CPU model
name error
•
The written CPU model name and the
CPU monitor name in the monitor
request are different. C/N
•
Check the transmit message from the
external device, correct it, and restart
data communications.
•
Rewrite the monitor data.
7147
H
Written number of
monitoring points
overrun error
•
The written number of monitoring points
exceeds the designated range.
PRO.
•
Check and correct the external device
transmit message and restart data
communications.
7148
H
Extension R block
No. error
•
A nonexistent extension file register
block No. was designated.
•
A block No. being used as an extension
comment area, sampling trace area, or
status latch area was designated.
PRO.
•
Check and correct the designated block
No. and restart data communications.
7149
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)
714A
H
Cannot execute a
command during
RUN
•
A write command was designated when
disable online change was set.
•
Parameter or sequence program was
written during RUN.
C/N
•
Change the setting to enable online
change and restart data
communications.
•
Stop the CPU module and restart data
communications
714B
H
714C
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)
714D
H
Unusable command
error
•
An unusable command is issued to the
access target CPU module.
C/N
•
Check and correct the external device
transmit message and restart data
communications.
•
If no error is found in the command,
clear the programmable controller CPU
information and retry. (Refer to Section
15.5.)
714E
H
Monitor network No.
error
•
The written monitor network No. and the
monitor request network No. are
different. C/N
•
Check and correct the other station
access valid module No. in the network
parameters, and restart data
communications.
•
Rewrite the monitor data.
7150
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)
7151
H
PC No. designation
error
•
A PC No. other than "FF" or "0 to 120
(00
H
to 78
H
)" was designated.
C/N
•
Check and correct the external device
transmit message and restart data
communications.
7152
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)
7153
H
Frame length error
•
The request exceeded the limit of the
processing points that are
predetermined for each command
and allowed for one transmission. CHn
ERR.
•
Modify the setting of the transmit
message from the external device so
that the request will not exceed the limit
of the processing points that are
allowed for one transmission and
predetermined for each MC protocol
command. Then, retry communications.
7154
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)
7155
H
Unwritten monitor
data error
•
Monitoring was requested before
monitor data was written.
PRO.
•
Write the device to be monitored before
issuing a monitor request.
7156
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)
7160
H
Programmable
controller access
error
•
CPU model name cannot be confirmed. C/N
•
If there is an error in the CPU module,
remove the CPU module error and
restart data communications.
7161
H
to
7163
H
System error
•
The OS of the C24 detected some
error.
⎯
( 1)