Troubleshooting Micro850 Controller Connectivity Issue After Failed Firmware Update

Question:

Greetings, everyone! I am currently facing an issue with my Micro850 controller (model number 2080-LC50-48QWB). After creating a simple program for testing purposes, I attempted to download it to the controller using Ethernet and USB connections. However, I encountered an error message indicating a firmware version mismatch (program - v9, PLC - v4). To resolve this issue, I referred to a datasheet that explained the process of upgrading the device firmware using ControlFLASH. I followed the instructions, selected the correct controller, chose version 9, and initiated the update process. Unfortunately, I encountered an ERROR message towards the end, and the update was not successful. As a result, the controller is now in fault state (indicated by a flashing FAULT red light) and is not detectable through RSLinx, Ethernet, or USB connections. I am seeking guidance on how to establish a connection with the controller. I have attempted switching between prog mode and run mode, but the fault persists. Any suggestions on resolving this issue would be greatly appreciated as the PLC is needed urgently for work purposes. Thank you in advance for your assistance.

Top Replies

If you have experienced a failure, have you tried power cycling your device? You can find a list of error codes on page 255 of the user manual: http://literature.rockwellautomation.com/idc/groups/literature/documents/um/2080-um002_-en-e.pdf. Were you using a VM while flashing the device, and were you using a USB or Ethernet connection?

It is likely that the firmware upgrade has overwritten your communication settings. To rectify this, utilize the serial connection to restore your settings and re-flash the device.

Thank you for your valuable advice! I have attempted cycling power multiple times without success. Although I did flash with a VM, I previously did this with ControlLogix without any issues. Despite following the manual closely (excluding the VM aspect), I was unable to make any progress. I also considered connecting via a serial port, but that attempt was unsuccessful. This PLC supports Modbus RTU, CIP serial client/server, and CIP symbolic client/server protocols. In RSLinx, I am unsure which driver to configure. I initially tried "RS232 DF1 devices" - should I test another option?

TijanaJ mentioned that this programmable logic controller (PLC) supports Modbus RTU, CIP serial client/server, and CIP symbolic client/server protocols. They are unsure about which driver to configure in RSLinx and have already tried "RS232 DF1 devices." It is recommended to try using Ethernet IP or the virtual driver, especially if working with 820's more often. By using Ethernet IP, the device may be easily recognized on the network, especially if it has been reset to factory settings. Simply download the program again after establishing the connection.

I have attempted to connect to my PLC using Ethernet IP, USB, and serial port with no success. The only glimpse of my controller I can see is on AB_VBP_1, but I am uncertain of its purpose and if it can help me regain connection. Can the virtual backplane be utilized to assist me when traditional methods are inaccessible?

Have you tried performing a factory reset on your Micro850 controller? This process typically clears any existing fault state and might help solve your issue. However, please note that this will erase all configurations and programs in the PLC. After you've reset the device, you can try to connect again using RSLinx, Ethernet, or USB. If the fault persists after a reset, it might be an indicator of a hardware issue - in which case, you should consider reaching out to the manufacturer's technical support.

Sorry to hear about your ongoing troubles with the Micro850 controller. I had a similar issue a little while back and was able to resolve it by performing a factory reset on the PLC. Doing this could potentially help restore your PLC to a normal operating state and default firmware version. You can generally do a factory reset by holding the OK button during startup. Be careful though, as this also means losing your current program on the PLC. HDMI cables have worked best for me in terms of stable connection but you could also try and establish an Ethernet connection post-reset. Don't forget to run the latest version of RSLinx and ControlFLASH when you retry updating the firmware. Hope this helps!

I'm sorry to hear you're having difficulties with your Micro850 controller. Since you've attempted upgrading the firmware and switching between modes, it seems like the issue might be more complex. However, a method you could try is to use the bootp-DHCP software to assign a temp IP address to the controller, then try re-flashing the firmware using that address. I've done this in the past when a controller became undetectable, and it generally helped. Just remember to carefully follow the instructions in the Rockwell's manual while doing so. Hope this helps and you get your controller back up and running soon!

Hey there! That sounds really frustrating, especially when you need the PLC up and running urgently. Have you tried performing a power cycle on the controller? Sometimes, just turning it off and back on can help clear any temporary faults. If that doesn't work, you might need to look into using a direct USB connection while in boot mode (if your controller supports that) to see if you can recover it. Also, make sure to check that you have the right version of ControlFLASH and that no other applications are interfering during the update. Good luck, and I hope you get it sorted out soon!

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Frequently Asked Questions (FAQ)

FAQ: 1. How can I resolve a Micro850 controller connectivity issue after a failed firmware update?

Answer: - Answer: If you are facing connectivity issues after a failed firmware update on your Micro850 controller, one way to resolve it is by attempting to establish a connection through RSLinx, Ethernet, or USB connections. If these methods do not work, you may need to refer to specific troubleshooting steps provided by the manufacturer or seek assistance from technical support.

FAQ: 2. What should I do if my Micro850 controller is in a fault state with a flashing FAULT red light after a failed firmware update?

Answer: - Answer: If your Micro850 controller is in a fault state after a failed firmware update, try switching between prog mode and run mode to see if the fault clears. If the fault persists, you may need to consult the controller's user manual or contact the manufacturer's support for further guidance on resolving the issue.

FAQ: 3. How can I recover my Micro850 controller if it is not detectable through RSLinx, Ethernet, or USB connections post a firmware update failure?

Answer: - Answer: If your Micro850 controller is not detectable through RSLinx, Ethernet, or USB connections after a failed firmware update, you may need to explore alternative methods such as resetting the controller, performing a factory reset, or attempting to establish a connection using different tools or software recommended by the manufacturer. It is advisable to follow the specific recovery procedures provided by the manufacturer for

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