text: <s>[INST] VFD Ring Network Issue Summary: Issue with Ring network causing issues when servicing equipment.I have ring network setup with one compact logix PLC and several VFDs, say 30 or so. There are times when one VFD needs to have it's disconnect turned off for service. This shuts down all the equipment on the ring. Because they are on one ring but on different conveyors I need to be able to remove a drive from service without taking the entire system down. Is there anything that can be done to prevent the system from shutting down when one drive is turned off? [/INST] What PLC model specifically? What firmware version is the PLC? What device is the ring master? A complete diagram of the ring would help us help you. Are you sure you have the ring configured properly? Are there any devices which are not rated for being in the ring? For instance, Wago Ethernet adapters with 2 ports can technically be in a ring, but are not rated for DLR service and could cause ring problems. \\n </s>