text: <s>[INST] PowerFlex 700 VFD's on Ethernet with 20-COMM-E To all, This is lengthy, but important that I get it right, so bear with me. I am planning on installing 5 PowerFlex 700 drives on my ControlLogix system using Ethernet control to 20-COMM-E modules in each drive. My system currently has 1 L63 processor running version 15. I have one remote I/O rack that is on Ethernet with ENBT cards for communications. (one ENBT in the main chassis, one in a remote rack. I also have a 3 slot Flex I/O rack with an AENT on this same comm. link.)Only I/O communications occur on these ENBT's. HMI & programming communications are on a separate ENBT. I will be running the drives with an RPI of ~100ms, and will probably use all of the Datalinks available for drive information. There is a Hand-Off-Auto switch in the field by each motor. In the Auto position, Start/Stop and speed commands (PID loop control) will be via Ethernet. In the Hand position, the drive will be commanded to run at a fixed speed over Ethernet. The Off position will be hardwired to the Enable inputs of the drive for safety reasons. I am planning on using the existing drive profiles that are in RSLogix 5000 v15 software. Our Ethernet network equipment consist of two Cisco Catalyst 3560 Layer 3 Switches configured in a redundant manner. Does anyone have any experience/hints/tips that they may have encountered that would help me implement this configuration with a short amount of downtime to our facility. I have downloaded the Ethernet Capacity Tool from the website, and it shows plenty of bandwidth and connections available. We are a pharmacutical manuf. and our system is validated. So upgrading to v16 which has the integrated drives/Drive Executive software is not possible at this time. That would require a revalidation of the system. Thanks in advance. Dlogger [/INST] dlogger, trying to help you, some points to clarify: 1. No particul problems/issues on using v15 PF700 profile for Ethernet/IP (we use many times, just it is not as easy as the Premier Drive Integration from v16) 2. If you want to check the amount of traffic/use of your Ethernet/IP module in CLX, you need to consider also the RPI you expect from Flex IO and the expansion chassis; then you have to consider the amount of analog/special modules inside them and also the RPI expected. Normal way is to use 20ms RPI for all digital IO optimized in adapter image, 80 mS for analog/special card. If you want to post that infos, I will check with Ethernet/IP prediction tool for you. Anyway, as you wrote, the ENBT has many connections and bandwith available, so should not be a problem to manage your devices, unless you need particulary quick RPIs. 3. Switches should be managed to have the best performance and flexibility in configuration; you may have a look to the following technotes in Rockwell KB to clarify your ideas on them.Aid 22044 Aid 26760 Hope this helps....- fuzzy logic \\n </s>