Hello everyone, I have a question about setting the IP address of a ControlLogix Processor to DHCP for Redundancy purposes. I initially had a Static IP address configured, but I removed it through RSLinx and the only option available was to enable DHCP. However, when I try to connect via a Stratix 5700 Managed switch Port with the smart port role assigned as Desktop for Automation, I am unable to go online with the CPU through the EN2TR. Strangely, when I connect the cable directly to the EN2TR, it works fine. Any suggestions or insights on this issue would be greatly appreciated.
To ensure optimal performance and reliability, it is crucial to utilize static IP addresses when setting up ControlLogix Redundancy systems. This requirement is outlined in detail in the Redundancy user manual, specifically on pages 29-31. It is important to note that the use of dynamic IP addresses is not compatible with IP address swapping in EtherNet/IP communication modules within redundancy systems. Embracing static addresses will help prevent potential complications and ensure seamless operation.
Contr_Conn recommended using static IP addresses for ControlLogix Redundancy to meet the strict requirements outlined in the Redundancyuser manual pages 29-31. It is important to note that this information pertains to the EN2TR Module, which is an EtherNet/IP communications module.
If you are inquiring about the Ethernet port status on the L8 controller, please note that it is disabled when redundancy is enabled.
Hi there, sounds like you're dealing with a challenging issue. Based on your description, it seems like the managed switch might not be correctly configured to assign a DHCP address to your ControlLogix Processor. When you plug the processor directly into the EN2TR, it could be getting an automatic IP through the default system settings, hence why it works. You may want to verify your Stratix 5700 Managed Switch config or perhaps consider setting a reservation for your Processor's MAC address on your DHCP server to ensure it gets the same IP each time. If the issue persists, don't hesitate to bring up more details and we can troubleshoot together.
It sounds like you've done a lot of troubleshooting already! One thing to consider is that the Stratix 5700 might not be correctly passing the DHCP requests to the ControlLogix processor, which could be due to how the port is configured or potential VLAN settings. Make sure the port settings on the switch align with DHCP relay configurations if you have VLANs set up. Also, double-check any security settings like port isolation that might prevent the ControlLogix from communicating properly through the switch. Sometimes, simply power cycling the switch after making changes can help clear up any lingering issues. Hope that helps!
It sounds like you might be running into issues with how the Stratix 5700 is handling DHCP traffic or the configuration of the smart port. Make sure that the DHCP server on your network is properly configured and that the switch is allowing DHCP requests to pass through. It could also help to check the VLAN settings on the switch; sometimes, they can interfere with communication if they're not properly set up for your control network. Additionally, it might be worth trying to manually assign an IP address on the switch to see if it makes a difference.
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Answer: Answer: The issue could be related to the configuration of your network setup or compatibility between the ControlLogix Processor, Stratix 5700 Managed switch, and EN2TR module. It's important to ensure that all devices are properly configured and compatible for seamless communication.
Answer: Answer: Start by verifying the network settings on all devices, checking for any misconfigurations or conflicts. Ensure that the smart port role assigned to the switch port is appropriate for automation purposes. Additionally, check for any firmware updates or compatibility issues between the devices.
Answer: Answer: Transitioning from a Static IP address to DHCP can sometimes introduce connectivity issues due to differences in network configurations. It's important to carefully manage the switch and ensure that all devices are properly communicating within the network infrastructure.
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