Multiple VFD installations can be enhanced with a centrally located HMI/Controller for display, alarming, and control of the remote drives. The following outlines the configuration for Ethernet communications of the new Horner XL4 OCS All-in-One controller to ABB VFD's.
Next, using CScape version 9.3, Service Pack 3 or newer, select Protocols under the Networking configuration in the Project Navigator and then choose "Modbus Tcp/Ip Client v3.05" for the Ethernet protocol.
Under the Status configuration, enter a register that will contain the status of the Ethernet communications. This is
usually a register location outside your normal program registers. Notice that this is 4 Double Integers (DINT), so do not use any registers above this address for at least 8 registers. Once this is completed, select OK and return to the Protocol Config screen.
Once the project is downloaded to the XL4 it will continuously poll all the drives in the Scan List and place the data at the registers you designated for each drive. Display screens and logic can now be added to the Horner XL4 to display and control the remote ABB drives.
For additional information on the XL series of the Horner OCS line, contact your Logic, Inc. sales engineer. For a closer look at the new XL4, a 30 min. YouTube video can also be viewed at: http://www.youtube.com/watch?v=BLqg0Wx9sw4.
Note: For additional information on the ABB RETA and FENA modules you can contact our support department or an upcoming Tech Tip will discuss in detail the configuration of these interface modules for use with Modbus TCP/IP and Ethernet/IP communications.