Mitsubishi Electric MELSEC iQ-RJ71C24-R4 - Page 483

27 TROUBLESHOOTING
27.4 Error Code List
481
27
7E60H Device monitoring
duplicate
registration error
• Programmable controller
CPU monitoring
registration was
performed twice.
 • Cancel the programmable
controller CPU monitoring and
perform the programmable
controller CPU monitoring
registration again.

7E61H Cycle time units
range error
• The setting value for the
cycle time units is out of
range.
 • Correct the cycle time units
setting value.

7E62H PLC CPU
monitoring
function error
• The setting value for the
programmable controller
CPU monitoring function
is out of range.
 • Correct the programmable
controller CPU monitoring
function setting value.

7E63H Transmission
method setting
error
• The transmission method
setting for programmable
controller CPU monitoring
is incorrect.
 • Correct the transmission
method setting value.

7E64H Registration point
range error
• The total number of word
blocks and bit blocks
registered for
programmable controller
CPU monitoring is out of
range.
 • Correct the setting value so
that the total number of
registered word blocks and bit
blocks is within 1 to 10.

7E66H Monitoring
condition error of
monitoring device
• The monitoring condition
is out of range.
 • Correct the monitoring
condition.

7E67H CPU error
monitoring setting
value error
• The setting value (fixed
value) for CPU error
monitoring is out of range.
 • Correct the setting value
(fixed) for CPU error
monitoring.

7E68H Transmission
condition range
error of
monitoring device
• The setting value for the
transmission condition
(condition match send) is
out of range.
 • Correct the setting value for
the transmission condition
(condition match send).

7E69H CPU error
monitoring setting
value error
• The setting value (fixed
value) for CPU error
monitoring is out of range.
 • Correct the setting value
(fixed) for CPU error
monitoring.

7E6AH Monitoring device
read point range
error
• The read point of the
monitoring device is out of
range.
 • Correct the setting value for
the monitoring device read
point.

7E6BH to
7E6DH
CPU error
monitoring setting
valu
e error
• The setting value (fixed
value) for CPU error
monitoring is out of range.
 • Correct the setting value
(fixed) for CPU error
monitoring.

7E6FH Modem
connection error
• Modem is connected to an
incorrect channel.
 • Correct the destination to
which data is sent with the
modem function.

7E70H CPU error • The communication with
the CPU module was not
performed normally.
C/N • If the CPU module side has an
error, remove the error and
restart data communications.
 
7E71H System error • The operating system of
C24 detected some error.
Page 490 Corrective actions
for system error
7EC1H to
7EC2H
System error • The operating system of
C24 detected some error.
Page 490 Corrective actions
for system error
7EC3H Double send
request error
• A send request was sent
again during processing of
the send request.
 • Provide an interlock for send
requests.

Error code
(hexadecima
l)
Error Description Signal
name
Corrective action Protocol
MC Nonpr
ocedu
ral
Bidire
ctiona
l
Prede
fined