Hello everyone, I am currently integrating an Endress Hauser Promag W 400 into a plant-wide monitoring system controlled by a CompactLogix RS5000 system. The process of adding it to my I/O tree was straightforward thanks to the ability to download an .eds file through the browser application. By navigating to Tools -> EDS Hardware Installation Tool, I was able to seamlessly incorporate the device into the system. The PLC has an IP address of 192.168.1.2, while the Promag 400's IP address is 172.17.41.186. I have successfully pinged and connected to the Promag from my laptop. However, when attempting to go online with the PLC, I encountered an error message stating '16#0204 Connection Request Error: Connection Request Timed Out'. Based on my research, this issue may stem from a physical problem, such as a network switch. Troubleshooting this error is proving to be challenging due to the size of the plant and the numerous switches between the panel and the unit. I am seeking guidance on how to address this issue and determine if it is indeed caused by a physical obstacle. Any assistance you can provide would be greatly appreciated. Thank you! -Matt
In the demonstration video for the electromagnetic flowmeter Proline Promag W 400-5W4C by E&H, the individual showcases using an application to adjust the IP address of his PC to align with the Promag's subnet. The default subnet appears to be 192.168.1.xxx, as shown in the video. Since the connection was point-to-point via a cable, a gateway was not required. It is important to note the subnet of your PC in relation to the Promag's IP address. If your Promag is at 172.17.41.186, your network may require routing through a gateway router. For simple configuration purposes, it is recommended to set up the Promag locally, ensuring both the PC and Promag are on the same subnet as demonstrated in the video.
Apologies for the delayed response. I appreciate the information, danW, but I believe the issue lies in the communication between the PLC and Promag, not my PC->Promag connection. My goal is to transfer inputs to the PLC and display them on a HMI. The Promag controller tags have automatically included various inputs like volume flow and total flow, but they are all displaying a value of 0.0. Additionally, the 'Connection Faulted' input shows a value of 1.
To troubleshoot the connectivity issue, follow Danw's advice and test the IP settings. Try pinging the flow meter to identify any potential cable issues or incorrect IP address settings or subnet masks causing the problem.
As mentioned in my previous post, I am able to successfully ping the Promag device and also access it through a web browser. I appreciate the suggestion nonetheless.
In response to cjd1965, I recommend following danw's suggestion to test the IP settings. Try pinging the flow meter to troubleshoot. The issue could likely be related to cable connectivity or incorrect IP address/subnet mask settings. While I agree it may be an IP address/subnet mask issue, I will further explore this path. Thank you everyone for your input!
Hey Matt, your issue sounds like it could be a network communication problem. When you mentioned the difference in IP addresses between your PLC and Promag 400, I started to think about subnetting. They are on different subnets, which might be why your PLC can't establish a stable connection. You may need to check your routing tables or firewall settings. Additionally, ensure that both devices are on the same subnet or that proper routing is set up between the two subnets. You might also want to inspect the network cabling for any physical damage. Sometimes, the simplest explanation is the right one!
Hi Matt, it looks like you're on the right track. That error message typically indicates that communication isn't being established between the PLC and the device. One thing to ensure is that your PLC and Promag are on the same subnet. If there is a massive IP address deviation, it may likely cause this issue. Moreover, check ethernet cables for any damage and switches for proper configuration. Additionally, try isolating the problem by connecting the Promag directly to the PLC. If successful, this would suggest an issue elsewhere on your network. Lastly, Confirm the exact model of your CompactLogix processor - some older versions have limitations on embedded I/O connections. Good luck with your troubleshooting!
Hey Matt, you seem to have dove right into the deep end with your troubleshooting. A good start would be to identify and eliminate potential points of failure where feasible. Try connecting the PLC and the Promag on a small and isolated network to eliminate the complexities of the plant's network. You'll need a switch, the PLC, and the Promag only, with the same IP addresses. If you're able to establish a connection in this isolated setup, you'll know the problem lies somewhere in the plant's infrastructure; possibly a network switch as you suspected. Also ensure that both devices are configured for the same network subnet. If they aren't, it might cause issues in establishing a connection.
Hi Matt, this definitely seems tricky! Your situation sounds like a classic problem with physical connections in an extensive infrastructure. Before diving deep into troubleshooting, do ensure that your communication runs correctly at the PLC level, with no conflicts in subnet or any potential IP conflicts. If possible, try bypassing the network switch temporarily by directly connecting the PLC with the Promag W 400 using a crossover cable. This can help confirm if the issue truly lies with the network switch or some other part of the infrastructure. Additionally, it might be worth checking firmware versions for compatibility between devices or updating them if needed. And lastly, consider cabling issues: excessive length, interference, or physical damage could be the culprits. Best of luck!
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Answer: Answer: The process involves downloading an .eds file through the browser application and navigating to Tools -> EDS Hardware Installation Tool to incorporate the device into the system seamlessly.
Answer: Answer: This error may be caused by a physical problem, such as a network switch. Troubleshooting may involve checking the network connectivity and addressing any obstacles between the panel and the unit.
Answer: Answer: The PLC has an IP address of 192.168.1.2, while the Promag 400's IP address is 172.17.41.186.
Answer: Answer: You can successfully ping and connect to the Promag from your laptop to ensure the network connection is established.
Answer: Answer: The size of the plant and the numerous switches between the panel and
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