Troubleshooting By Symptom - Mitsubishi Electric MELSEC iQ-R Series User Manual

5.5

Troubleshooting by Symptom

This section describes troubleshooting method by symptom. If an error has occurred in the RJ71PN92, identify the error
cause using the engineering tool. ( Page 124 Checking the Module Status)
When I/O data exchange cannot be performed
The following lists the actions to be taken if I/O data exchange with IO devices cannot be performed.
Check item
Is the wiring of PROFINET correct?
Is the setting of I/O data exchange is correct?
Are the IO device names correct?
Has an error occurred in IO devices?
Does the IP address of the RJ71PN92 overlap with other IP addresses?
Does the IP address of the IO device overlap with other IP addresses?
Does the controller name or the IO device name to be connected overlap with
other names?
If the above actions do not solve the problem, perform the self-diagnostic test to check for hardware failure. ( Page 131
Automatic Hardware Test)
5 TROUBLESHOOTING
132
5.5 Troubleshooting by Symptom
Action
Check if the wiring of PROFINET is correct.
• Check if the IO device to be used has been added to the network
configuration setting of GX Configurator-PN. In addition, check if there is
any difference between the network configuration setting and the
configuration of the IO device to be used on the [Module Configuration] tab
of the IO device setting window.
• Check if the name of the RJ71PN92 has been set to "Own Node Setting" in
"Basic Setting".
• Check if 'Data exchange start request' (Un\G17000.0) is on. ( Page 144
Data exchange start request)
• Check if the names of the IO devices set in the PROFINET module setting
and the names of the IO devices actually connected are matched.
• Check if the names of the IO devices set in the PROFINET module setting
are not overlapped.
Check the error details of the IO devices in 'IO device error details'
(Un\G21858 to Un\G21921). ( Page 152 IO device error details)
Disconnect the RJ71PN92 from the network and execute the PING command
from the personal computer to the IP address of the disconnected RJ71PN92.
When a response is received, change the IP address of the RJ71PN92.
Disconnect the IO device for which the I/O data exchange cannot be
performed and execute the PING command from the personal computer to the
IP address of the disconnected IO device.
When a response is received, change the IP address of the disconnected IO
device.
Detect the IO devices on the network in the "Devices on the Network" window
of GX Configurator-PN and check if the controller name or the IO device name
on the network overlaps with other names.
When overlap is found, correct the name.