I have successfully connected the HMI and PLC online, but I am encountering a fault that says "NX Bus I/O Communication stopped due to another event" (error code 0x85540000) and "registered NX Unit Not Mounted."
If the PLC's CPU/Expansion Rack settings do not match the current setup, you can resolve this issue by opening the CPU Rack online and selecting Unit 0. From there, you can choose the option to Compare and Merge with the actual configuration. This will help ensure that the PLC's settings are in line with the physical configuration in use.
IO_Rack indicated that there is a discrepancy between the PLC's CPU/Expansion Rack configuration and the current setup. To resolve this issue, access the CPU Rack online, right-click on Unit 0, and select "Compare and Merge with Actual Unit Configuration." Thank you for your assistance.
Hey there, I've crossed paths with similar issues before. It seems like this could be related to some kind of network communication disruption between the HMI and PLC. Make sure all your ethernet connections are stable, and perhaps check your NX unit's setup for any anomalies. If there's no physical disconnection, it may be a PLC program issue, consider verifying your program once. Also, updating the device firmware version could potentially iron out the issue. It's quite a common issue and doesn't usually signify a major fault. Hope this helps!
It sounds like the issue might be network related, possibly due to a conflict on your NX Bus. This problem usually arises when there are two units having the same Network Address. You might want to check your NX Unit settings, particularly the Network Address of each unit to ensure no duplicates. Also, make sure to properly mount each unit in your configuration as indicated in the error message to allow for successful communication.
It sounds like you're facing a communication issue between the HMI and the PLC, likely related to the NX Bus setup. The "registered NX Unit Not Mounted" error usually indicates that the system isn't able to detect the I/O Unit properly. Double-check all your physical connections and ensure the NX Unit is powered on and properly configured in your PLC project. If everything looks good, try restarting both the PLC and the HMI, as sometimes a simple reboot can resolve communication glitches. Let us know how it goes!
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