List Of Error Codes - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

4.5

List of Error Codes

This section lists the error codes, error details and causes, and action for the errors occur in the processings for data
communication between master/local module and external devices or caused by processing requests from the CPU module
on the own station.
Error codes are classified into major error, moderate error, and minor error, and can be checked in the [Error Information] tab
of the "Module Diagnostics" window. ( Page 219 Error Information)
Error Error details and causes
code
1080H The number of writes to the flash ROM has exceeded
100000.
1800H A connection failure was detected in the network.
1811H An error was detected in the CPU module.
1830H Number of reception requests of transient
transmission (link dedicated instruction) exceeded
upper limit of simultaneously processable requests.
1845H Too many processings of transient transmission (link
dedicated instruction) and cannot perform transient
transmission.
1D01H "Network Synchronous Communication" in "Network
Configuration Settings" under "Basic Settings" of the
master station does not match the network
synchronization communication setting of the
controlled slave station (synchronization enable/
disabled).
1D10H Cyclic transmission skip occurred.
1D20H The module cannot normally communicate with the
synchronized slave station on CC-Link IE Field
Network.
20E0H The module cannot communicate with the CPU
module.
Action
Replace the module.
Correct the wiring status.
Check the error of the CPU module and take action
using the module diagnostics of the engineering tool.
Lower the transient transmission usage frequency,
and then perform again.
Correct the transient transmission execution count.
• Set the "Network Synchronous Communication" for
the corresponding local station to the
"Synchronous" in "Network Configuration Settings"
under "Basic Settings" of the master station.
• Set the corresponding module to the same setting
as the master station using the local station's inter-
module synchronization setting.
• Increase the value set in "Fixed Scan Interval
Setting of Inter-module Synchronization" under
"Inter-module Synchronous Setting" in the [Inter-
module Synchronous Setting] tab of the "System
Parameter" window so that the execution time of
synchronization interrupt program does not exceed
the inter-module synchronization cycle.
• Reduce the program processing time by reducing
the program volume so that the execution time of
synchronization interrupt program does not exceed
the inter-module synchronization cycle.
• Reduce the refresh processing time by reducing the
data targeted for synchronization refreshing so that
the execution time of synchronization interrupt
program does not exceed the inter-module
synchronization cycle.
• Set modules not requiring synchronization to
asynchronous so that the execution time of
synchronization interrupt program does not exceed
the inter-module synchronization cycle.
• Set the inter-module synchronization cycle to longer
than the current value in "Fixed Scan Interval
Setting of Inter-module Synchronization" under
"Inter-module Synchronous Setting" in the [Inter-
module Synchronous Setting] tab of the "System
Parameter" window.
• Check if the switching hub and the cables are
connected properly.
• After taking the above actions, power on the system
again or reset the CPU module.
The hardware failure of the CPU module may have
been occurred. Please consult your local Mitsubishi
representative.
Detailed Information
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Parameter information
• Parameter storage
location
• Parameter type
• I/O No.
• Parameter No.
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4 TROUBLESHOOTING
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4.5 List of Error Codes
4