PMDG Engravity CDU Interface FAQ
From PMDG Ops
Contents |
What is the PMDG Engravity CDU Interface?
The PMDG Engravity CDU Interface is a software interface that will allow you to use the Engravity CDU hardware with the PMDG 747-400 or PMDG 737-600/700/800/900. You must own either product, both products AND the Engravity CDU in order to enjoy this product.
The PMDG Engravity CDU Interface is available for sale through the PMDG eCommerce site.
YOUR ENGRAVITY CDU MUST BE FIRMWARE VERSION 1.03 OR LATER! (See your CDU screen during powerup to determine version. If you need to update the firmware, please contact Engravity Technical Support!)
YOU STILL NEED
The Engravity CDU USB drivers
These drivers come in the CD that accompanies delivery of your hardware CDU. If, for any reason, you have misplaced the CD, or you can't find the drivers .zip file in the CD, we have made it available in our file library here.
The license key file
The downloaded PMDG Engravity CDU interface installer merely installs the software interface that is required. The instructions you received along with your purchase indicate the PMDG Engravity CDU interface license key generator web page which provides you with a license key from PMDG that is required to be installed in the FS/PMDG directory in order to activate this interface. The license key is valuable, so please keep your copy safe, along with this installer.
How to generate a new license key
To generate a new PMDG Engravity CDU interface license key, visit our web site here.
Installation Instructions
For detailed installation instructions, please visit the Engravity CDU Installation Instructions page.
Troubleshooting
Installation Order Matters!
Please make sure that you install the CDU Interface AFTER you have installed the 737 800/900 product - if you try to reinstall the 800/900 later, you'll end up overwriting some critical files, so you'll need to once again run the CDU Interface Installer to update the necessary files.
My CDU lights up, but I get nothing on the screen!
Make sure you have installed the proper USB drivers from Engravity and that your firmware is version 1.03 or later, as mentioned above.
The PMDG->Engravity CDU menu option is greyed out!
You have overwritten some critical files by reinstalling the 737NG 800/900. Please reinstall the Engravity CDU interface using the installer.
Will my Engravity CDU Interface be compatible with upcoming Microsoft Flight Sim X versions?
We'll make every effort to provide compatibility once we know the level of difficulty involved in upgrading our code for FSX.

