Hello, I am attempting to establish a connection with injection machines. Unfortunately, I am unable to set their IP address as it is restricted and shows as 127.0.0.0. This limitation is causing me a lot of difficulty in establishing a connection. Even when I connect an USB to my computer and the injection machine, I am unable to see any activity on Wireshark. However, when I use an Ethernet cable, I notice a large amount of UDP protocol traffic but no OPC UA. I have configured protocols for OPC UA ports 4840, 4841, 4842, and 48030 on Wireshark. I have not yet attempted to connect using RS232. The injection machines I am trying to connect to use Keba Plc CP053/Y. My goal is to gather data such as cycle times, pressure, temperature, and other values from these machines. Once I am able to establish a connection, I would like to know how to retrieve this data for various Injection Machines (Arburg, Haitian, Fanuc, etc.).
The IP address 127.0.0.0 is not considered a valid address and is designated for the host loopback function.
According to jstolaruk, the IP address 127.0.0.0 is not a valid one as it is reserved for loopback. I attempted to use a Bootp-DHCP tool with USB and Ethernet cables but was unsuccessful. I will try using rs232 once I have access to it. Unfortunately, it seems impossible to retrieve data from the PLC without configuring the IP address. Is there a way to change the IP address that is currently blocked on the machine's HMI?
I would like to emphasize that the IT department should avoid attempting to establish connections with PLCs in order to ensure operational safety and prevent potential system disruptions.
Hey there! Given the specifics of your issue, it seems like you have a networking problem. You mentioned seeing a lot of UDP traffic with an Ethernet connection but not OPC UA, which suggests that your OPC server might not be properly configured. Please review the server settings to make sure it's actually listening on the ports you mentioned. About the IP address issue, 127.0.0.0 is the loopback address, used mostly for testing. Can you manually set the machine's IP or is it issued via DHCP? If you can set it manually, I'd recommend doing that and ensuring the correct subnet and gateway are applied. Regarding the data collection, you will need the KEBA OPC UA server Accessory Package and KEBA i-Client OPC UA, which provides interfaces for monitoring and operating the injection machine once you have established the proper connection. It might help to consult with an IT support or KEBA support to assist you in breaking through these roadblocks!
It sounds like you're dealing with a fair bit of network traffic complexity here. One potential fix for the 127.0.0.1 issue could be to try and assign a static IP to your injection machines if that's at all possible. Regarding the OPC-UA issue, have you set the firewall to allow incoming connections on those specific ports you mentioned? For data gathering from different machines, once a successful connection has been made, specific APIs would be helpful to work with each machine's unique protocol. Unfortunately, without knowing the specific machine models and their communication capabilities, it's hard to give precise advice. But you might consider contacting the manufacturer or support for each of these machines for more tailored information about data retrieval.
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Answer: Answer: The restriction on setting the IP address could be due to various reasons, such as network configuration issues or security settings. You may need to consult the machine's manual or contact the manufacturer for guidance on how to properly configure the IP address.
Answer: Answer: If you are not seeing any activity on Wireshark when using a USB connection, ensure that the drivers are installed correctly and that the connection settings are properly configured. When using an Ethernet cable, the presence of UDP protocol traffic indicates communication but the absence of OPC UA traffic may require further investigation into the network setup or machine compatibility.
Answer: Answer: Connecting via RS232 may provide an alternative communication method if USB or Ethernet connections are not successful. Ensure that the correct cables and settings are used for RS232 communication. It is important to explore multiple connection options to troubleshoot and establish a reliable connection with the injection machines.
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