Mitsubishi Electric MELSEC iQ-R Series User Manual page 405

Class1 instance communications failed
The following table lists the actions to be taken if Class1 instance communications cannot be performed.
Check item
Is the instance ID specified correctly?
(Applicable to only EtherNet/IP devices for which an
instance ID can be specified)
UCMM message communications failed
The following table lists the actions to be taken if UCMM message communications cannot be performed.
Check item
Are the settings of the commands to request correct?
When the CC-Link IE TSN Plus module is a target, is the
command requested by the EtherNet/IP device
supported?
When the CC-Link IE TSN Plus module is an originator,
is a Class3-dedicated area used?
Is the data in the response area of the Class3/UCMM
communication area correct?
Class3 message communications failed
The following table lists the actions to be taken if Class3 message communications cannot be performed.
Check item
When the CC-Link IE TSN Plus module is a target, is the
command requested by the EtherNet/IP device
supported?
Are the settings in "EtherNet/IP Configuration" correct?
When the CC-Link IE TSN Plus module is an originator,
is an area not available for Class3 used?
Is the data in the response area of the Class3/UCMM
communication area correct?
Action
Check with the manual for the external device that an instance ID receivable by the external device
is set to the CC-Link IE TSN Plus module (originator).
Otherwise, change the instance ID to a receivable one and write the parameters again.
Action
• Check the value set for 'Class3/UCMM communication area' (Un\G7751680 to Un\G8275967).
• When the module FB (M+RJ71GN11_SE_EIP_UCMMOriginator_MessageSend) is used, check
the value set for the argument.
Check whether the EtherNet/IP device sent a command listed among the message communication
support commands. ( Page 349 MESSAGE COMMUNICATION SUPPORT COMMANDS)
• Check that 0001H (UCMM communications) is set as the initial value for the communication
method specification area of 'Class3/UCMM communication area' (Un\G7751680 to
Un\G8275967).
• Check that an area with a connection number for which Class3 communications parameters are
set in "EtherNet/IP Configuration" is used.
When the CC-Link IE TSN Plus module is an originator, check the value of the result storage area
of 'Class3/UCMM communication area' (Un\G7751680 to Un\G8275967). If the value is not 0, refer
to the error code and perform troubleshooting. ( Page 441 Error Codes for the Message
Communication Function (Client))
Action
Check whether the EtherNet/IP device sent a command listed among the message communication
support commands. ( Page 349 MESSAGE COMMUNICATION SUPPORT COMMANDS)
Check the values set in "EtherNet/IP Configuration".
When the following module function blocks are used, check the values set for the arguments.
• M+RJ71GN11_SE_EIP_Class3Originator_ReadTagData
• M+RJ71GN11_SE_EIP_Class3Originator_WriteTagData
• Check that 0002H (Class3 communications) is set as the initial value for the communication
method specification area of 'Class3/UCMM communication area' (Un\G7751680 to
Un\G8275967).
• Check that an area with a connection number for which Class3 communications parameters are
set in "EtherNet/IP Configuration" is used.
When the CC-Link IE TSN Plus module is an originator, check the value of the result storage area
of 'Class3/UCMM communication area' (Un\G7751680 to Un\G8275967). If the value is not 0, refer
to the error code and perform troubleshooting. ( Page 441 Error Codes for the Message
Communication Function (Client))
18 TROUBLESHOOTING BY SYMPTOM
18.2 Troubleshooting Related to EtherNet/IP
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