Troubleshooting Related To Ethernet/Ip - Mitsubishi Electric MELSEC iQ-R Series User Manual

18.2

Troubleshooting Related to EtherNet/IP

Communications with EtherNet/IP devices failed
The following table lists the actions to be taken if communications with EtherNet/IP devices cannot be performed.
Check item
Is the RUN LED of the CC-Link IE TSN Plus module
turned off?
Is the Ethernet cable connected correctly?
Is the EtherNet/IP device compatible with the
communication functions (Class1 communications,
UCMM communications, and Class3 communications) of
the CC-Link IE TSN Plus module?
Is the power supply of the EtherNet/IP device on?
Has an error occurred on the EtherNet/IP device,
switching hub, or a similar device?
Is the IP address setting of the EtherNet/IP device
correct?
Is the module operation mode setting of the CC-Link IE
TSN Plus module set to other than "Online"?
Has the initial processing completed successfully?
Has communication start processing been performed
correctly with 'EtherNet/IP communication start request'
(Un\G7340096)?
Has a timeout error occurred on the connection that
performs communications normally?
Has the number of currently active connections with the
target EtherNet/IP device reached the maximum number
of simultaneous open connections?
If the above actions do not solve the problem, check the parameter set in "EtherNet/IP Configuration", write to the CPU
module again, and check if the problem persists.
Tag communications failed
The following table lists the actions to be taken if tag communications cannot be performed.
Check item
Has communication start processing been performed
correctly with 'EtherNet/IP communication start request'
(Un\G7340096)?
Has the connection destination EtherNet/IP device been
registered in "EtherNet/IP Configuration"?
Is the tag name specified correctly?
Can Class1 tag communications be performed?
Can UCMM tag communications be performed?
Can Class3 tag communications be performed?
18 TROUBLESHOOTING BY SYMPTOM
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18.2 Troubleshooting Related to EtherNet/IP
Action
If the RUN LED is off, reset the CPU module.
If resetting does not cause the RUN LED to turn on, a hardware failure may have occurred.
Replace the CC-Link IE TSN Plus module, and restart the connected EtherNet/IP device.
Connect the Ethernet cable again.
Check the specifications of the EtherNet/IP device.
Turn on the power supply of the EtherNet/IP device.
If an error has occurred on the EtherNet/IP device, switching hub, or a similar device, check the
manual of each device.
Use a PING test to check the connection with the EtherNet/IP device. ( Page 385 PING test)
Use the engineering tool to change the module operation mode setting of the function CC-Link IE
TSN Plus module to "Online". ( Page 87 Module Operation Mode)
Check whether communication is starting after 'Module Ready' (XF) and 'Communication Ready'
(X1F) turn on.
• Check that a value other than 0 (start request) is set for ''EtherNet/IP communication start
request' (Un\G7340096).
• If 'EtherNet/IP communication continuation specification request' (Un\G7340104) is set to 16
(continue EtherNet/IP communication), set 'EtherNet/IP communication start request'
(Un\G7340096) to 0 (stop request) and then to a value other than 0 (start request) again.
Depending on the EtherNet/IP device used, the connection that performs communications normally
may be disconnected and a timeout error may occur after the time specified by Encapsulation
Inactivity Timeout has elapsed. Therefore, set Encapsulation Inactivity Timeout to 0 (invalid). (
Page 357 Instance attribute (instance ID: 01H))
• If a CC-Link IE TSN Plus module is the target, set the system configuration so that the number of
communication connections does not exceed 256. (The number of connections used can be
checked in 'Number of consumed connection (Port 2)' (Un\G8474724). ( Page 506 Number
of consumed connections))
• If a module other than a CC-Link IE TSN Plus module is the target, set the system configuration
so that the number of communication connections does not exceed the maximum value including
the module itself.
Action
• Check that a value other than 0 (start request) is set for ''EtherNet/IP communication start
request' (Un\G7340096).
• If 'EtherNet/IP communication continuation specification request' (Un\G7340104) is set to 16
(continue EtherNet/IP communication), set 'EtherNet/IP communication start request'
(Un\G7340096) to 0 (stop request) and then to a value other than 0 (start request) again.
When performing Class1 communications and Class3 communications, if the connection
destination EtherNet/IP device has not been registered in "EtherNet/IP Configuration", register it
and write the parameters again.
Check that the tag name set to the CC-Link IE TSN Plus module and the tag name set to the
external device match. If they do not match, correct the tag names and write the parameters again.
Page 401 Class1 tag communications failed
Page 401 UCMM tag communications failed
Page 402 Class3 tag communications failed