Hello,
I'm implementing an application to connect to Rockwell Automation PLCs using Ethernet/IP, and I ran into some difficulties:
1. The specifications aren't free. Although it says so on every document I found on ENIP. Does anyone know a good source to learn about the protocol? I have some documents I found with google, and I understand the basic structure, but I need some info about the different Address Items & Data Items, which I don't fully understand yet.
2. What's the difference between connected and unconnected messages?
3. What's this connection-id field you have on the connected messages? What does it represent? It's not the same on the command & on the telemetry.
Help with these subjects will be greatly appreciated...
Thanks
Nitay
I'm implementing an application to connect to Rockwell Automation PLCs using Ethernet/IP, and I ran into some difficulties:
1. The specifications aren't free. Although it says so on every document I found on ENIP. Does anyone know a good source to learn about the protocol? I have some documents I found with google, and I understand the basic structure, but I need some info about the different Address Items & Data Items, which I don't fully understand yet.
2. What's the difference between connected and unconnected messages?
3. What's this connection-id field you have on the connected messages? What does it represent? It's not the same on the command & on the telemetry.
Help with these subjects will be greatly appreciated...
Thanks
Nitay