Hello everyone, Has anyone attempted to change the IP Gateway of a PLC (specifically the ENBT card) while in a redundant configuration? In our setup, we have two Chassis - one primary and one secondary. Each chassis consists of a PLC CPU, two ENBTs, and an RM module. The secondary and primary RMs are connected via fiber. I am looking to update the gateway on all four ENBTs, but cannot simply do so using RSLinx. The process I have come up with involves disqualifying the syncing, updating the Gateway IPs, and then requalifying. If anyone knows of a simpler or more efficient method to accomplish this, please let me know. It is important to note that we cannot afford to stop the PLCs or perform a full download, so online changes are the only option. Thank you all for your input!
Could anyone assist with this query, please?
Changing the setting without disqualifying the system is not possible at this time. It is important to keep the setting consistent across both EN2Ts to avoid cross-loading issues. When you remove redundancy, the primary module remains in control, preventing downtime. One approach is to set qualification to Never, remove the secondary module, make the necessary changes in a separate chassis, swap the primary module while the system is running, reinsert the secondary module, and switch qualification to Automatic. System Update may also be attempted, but be aware that it may have the same disqualifying effect on the system.
Thank you, my friend.
I've encountered a similar situation in the past, so I hope I can provide some useful insight. Your step-by-step method seems viable, but can be a bit labour-intensive. One alternative could be using the Command Line Interface (CLI) provided by your PLC manufacturer; this could potentially simplify the process if you're comfortable working through there. However, always remember to take a backup before making these changes, just in case something goes wrong. Also, try updating one gateway first to see if it works as you expect and doesn't disrupt the sync before you update all four.
From my experience with dealing with similar setups, your approach seems quite practical. Disqualifying the sync, updating the Gateway IPs, and then re-qualifying is a pretty standard way to go about it. However, you might want to consider the firmware version of your ENBT cards because that can often complicate the process. I strongly recommend creating a backup of your current configuration as an additional safety measure. It's always good to have a fallback! Always remember to test each change step by step to ensure system stability. Keep us posted on how this works out!
Hey there! Changing the IP Gateway on ENBTs in a redundant setup can definitely be tricky without downtime. Your approach of disqualifying, updating, and then requalifying sounds solid for keeping the system online. Have you thought about using the "Change Module" function in RSLogix 5000? It might allow you to change the settings while online without going through the full disqualification process. Just make sure to check the primary and secondary settings to ensure they sync up properly afterward. Hope that helps a bit!
Hey there! It sounds like you've got a solid plan in place for changing the gateway IPs without disrupting the PLCs. One alternative approach you might consider is using the "Hot Swapping" feature if your ENBTs support it, which could allow you to update the IP addresses of one ENBT while the others are still operational. Just make sure to have a local backup of your configuration in case anything goes sideways. Also, checking for any firmware updates that might streamline this process could be worthwhile. Good luck!
Hey there! Your approach seems solid, especially given the redundancy and the need for online changes. One option you might consider is using the Studio 5000 software to change the gateway IPs directly while online, as it sometimes allows for modifications without needing to disqualify. Just make sure you’re monitoring the network traffic to confirm everything is stable post-change. If you're still stuck, checking with Rockwell's support might yield some additional insights or alternative methods. Good luck, and keep us updated on your progress!
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Answer: - Yes, it is possible to change the IP Gateway of ENBT cards in a redundant PLC configuration without stopping the PLCs or performing a full download. Online changes are the only option in this scenario.
Answer: - The process involves disqualifying the syncing, updating the Gateway IPs, and then requalifying the system. This method allows for updating the gateway without affecting the operation of the PLCs.
Answer: - If anyone knows of a simpler or more efficient method to accomplish this task, please share your insights in the discussion thread. The goal is to find a more streamlined approach that minimizes downtime and system disruptions.
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