Mitsubishi QJ71C24N User Manual page 336

11 TROUBLESHOOTING
Error code
Error
(Hexa-
decimal)
7164 Request error
H
7166 System error
H
7167 Cannot execute a
H
command during
RUN
7168
H
7169 CPU error
H
716A
H
to System error
716B
H
716C System error
H
716D
H
Monitor data write
error
716E
H
716F Device error
H
7170
H
A compatible 1C
7171
H
frame error
7172
H
Monitor data write
7173
H
error
Protocol No. setting
7D00
H
error
Continuous protocol
7D01 execution count
H
setting error
Protocol not-ready
7D02
H
error
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Description
• Either the request or the device
designation method is wrong.
• The OS of the Q series C24 detected
some error.
• A write command was designated when
"Disable write during RUN" was set.
• A command that cannot be executed
during RUN was designated.
• Cannot communicate normally with the
CPU.
• The OS of the Q series C24 detected
some error.
• The Q series C24 used is not
compatible with the Built-in Ethernet
port QCPU.
• The OS of the Q series C24 detected
some error.
• Monitor data was not written using QnA
compatible 2C/3C/4C frame.
• Monitor data was not written using A
compatible 1C frame.
• A nonexistent device was designated.
• Device that cannot be specified by the
corresponding command was
designated.
• Number of access points exceeded the
range.
• A device that cannot be designated was
designated.
• Written number of monitoring points is
incorrect. For example, [0] was
designated.
• Monitor data was written for a CPU
other than a Q/QnACPU using QnA
compatible 2C/3C/4C frame.
• In control data of the CPRTCL
instruction, the specified protocol No. is
out of range.
• The number of protocols to be executed
continuously, which is specified with an
argument in the CPRTCL instruction, is
out of range.
• The protocol was executed while Pre-
defined protocol ready (X1D) is OFF.
• The CPRTCL instruction was executed
during protocol setting data writing.
• The CPRTCL instruction was executed
with abnormal protocol setting data.
Signal
Corrective action
name
• Check the transmission
message/request from the external
⎯
device, make the necessary
corrections, and send again.
⎯
( 1)
• Change the setting to "Enable write
C/N during RUN" and restart data
communications.
• Stop the CPU and restart data
C/N
communications.
• If there is an error in the CPU, remove
C/N the CPU error and restart data
communications.
⎯
( 1)
• To use a Built-in Ethernet port QCPU,
use a Q series C24 of function version
B or later, and the first 5 digits of its
⎯
serial No. must be 10042 or greater.
( 1)
PRO
• Rewrite monitor data.
PRO
• Check and correct the external device
PRO transmit message and restart data
communications.
PRO
• Check and correct the external device
PRO
transmit message and restart data
communications.
PRO
• Write the monitor data and use the A
PRO compatible 1C frame to a CPU other
than a Q/QnACPU.
CHn
• Correct the protocol No. setting.
ERR.
• Correct the value set for the number of
CHn
ERR. protocols to be executed continuously.
• Confirm Pre-defined protocol ready
(X1D) turned ON before executing the
CPRTCL instruction.
• To prevent concurrent execution of the
CPRTCL instruction, set the CPU to
CHn STOP before writing the protocol setting
ERR. data.
• Write the protocol setting data again to
the Q series C24N, and then execute
the CPRTCL instruction.
• If this error persists even after rewriting,
replace the module.
MELSEC-Q
Protocol
Non
Bidire- Pre-
MC Proce-
ctional defined
dure
11 - 20