Mitsubishi MELSEC QJ71C24, User Manual

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MELSEC-Q
11 TROUBLESHOOTING
Protocol
Error code
(Hexa-
decimal)
Error
Description
Signal
name
Corrective action
MC
Non
Proce-
dure
Bidire-
ctional Pre-
defined
7143
H
Device No. error
•
The head device No. is out of range. PRO
•
Check and correct the external device
transmit message and restart data
communications.
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
•
Rewrite the monitor data.
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
•
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
•
Correct the designated block No. and
restart data communications.
7149
H
System error
•
The OS of the Q series C24 detected
some error.
⎯
( 1)
714A
H
Cannot execute a
command during
RUN
•
A write command was designated when
"Disable write during RUN" was set.
•
Parameter or sequence program was
written during RUN.
C/N
•
Change the setting to "Enable write
during RUN" and restart data
communications.
•
Stop the CPU and restart data
communications.
714B
H
714C
H
System error
•
The OS of the Q series C24 detected
some error.
⎯
( 1)
714D
H
Unusable command
error
•
An unusable command is issued to the
access target CPU.
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
11.1.7.)
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.
•
Rewrite the monitor data.
7150
H
System error
•
The OS of the Q series 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 Q series C24 detected
some error.
⎯
( 1)
7153
H
Frame length error
•
The received message length has
exceeded the allowable range.
CHn
ERR.
•
Review the transmission message.
•
Correct the message format so the
number of access points is within the
allowable range.
7154
H
System error
•
The OS of the Q series 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 Q series 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, remove
the CPU error and restart data
communications.
7161
H
to
7163
H
System error
•
The OS of the Q series C24 detected
some error.
⎯
( 1)