text: <s>[INST] Compact L18ERM With Kinetix 350 Over IP Summary: Drives not recognised in Linx; Download from Studio puts drives in error Oh heck, this is proving to be a trial. System set-up is an L18ERM, f/w 21.11, lined to two Kinetix350 amplifiers, f/w 1.55, driving two linear drives. Comms is via Ethernet/IP. Amplifiers are set up as 192.168.1.xx, gateway 0.0.0.0. PLC is set to 192.168.1.xx. Once the kit is connected together, I can ping everything successfully on the network. If I now look in RSLinx (Classic), under the ethernet driver, I see the PLC. If I enter the IP address of the amplifiers manually, then they appear eventually, but are unknown devices and red-crossed. At this point, they still respond to a ping. All three LEDs on the front of the drive are flashing green. OK, I set up Studio5000 with the PLC and amplifiers, use the motor catalogue number to set up the amplifiers. I create a motion group and assign the amplifiers to the group and all is well. This configuration is then downloaded to the PLC, and by definition, the Kinetix drives. The PLC is quite happy with the configuration and can be switched between run and stop with no complaints. The drives however are definitely not happy. The network LED is solid green. The other two are flashing red. The drive shows a fault indicating motor over-temperature (the motors haven't been run at this point!) and can't be tuned or tested in any way from Studio because the software reports that the axis are not configured. RSLinx still shows the drives as unknown devices and red-crossed So now what? I've exhausted my meagre knowledge of IP and Rockwell and can't see that I've done anything wrong. My gut feel is that this is a firmware problem, but the latest revision of firmware for the amplifiers available from ab.com is 1.055 - the amplifiers were shipped with 1.55. Any thoughts, comments or laughter would help at the moment. My client has customers coming to see this system running on Monday (ha ha - why not commit to this when the R&D and commissioning is complete????) so feedback would be great. Many thanks, John [/INST] First question would be what version of RSLinx you're using. Next, I'd suggest downloading the K350 EDS files from Rockwell. That MIGHT help. Next, doesn't the K350 have a web page? If you access one of your K350s with a web browser (HTTP://192.168.1.xx) do you get anything? Just because you downloaded the program successfully to the PLC does NOT mean the configurations got to the drives. The fact that Linx can't really see them says it did not get there. How is everything networked? All devices connected to a central switch? What sort of switch (managed, unmanaged, what manufacturer)? If you want faster communications, you're welcome to communicate via email or even phone if you're USA based. I'll send you contact information privately. \\n </s>