PRO & PRO LITE FIRMWARE v4.2 - last update May 27, 2011 -
The Delta T Pro firmware has a .BIN extension. This file has been inserted into a folder then compressed into a .ZIP file for download below. Make sure to select the version applicable to the controller. Loading incompatible firmware may cause a controller lockout and will void any warranty claims.
Use this tool to upgrade a Pro Controller using a set of cables and your PC. It is not possible to upgrade the Pro Ethernet controllers through a web browser, so this tool provides access to the latest software upgrades from the field.