You may have a newer firmware version. Contact BST support with your firmware version (displayed during boot-up). They can supply an addendum or the latest manual revision.
Finding the Bst Ekr Pro Com 50 Manual PDF: Setup, Troubleshooting & Downloads Bst Ekr Pro Com 50 Manual Pdf
Setup/Menu: Accesses deeper parameters like motor speed and dead-band zones. Calibration and Setup Procedure You may have a newer firmware version
Supports edge guiding (left or right), center-line guiding, and guiding to printed lines. Inputs/Outputs: Finding the Bst Ekr Pro Com 50 Manual
The is typically an advanced edge detection or line sensor controller. It is part of the EKR Pro series, designed for high-precision web guiding applications. The "COM 50" designation often refers to a communication module or a specific controller variant that interfaces with other BST components (such as cameras, actuators, and drives) via industrial communication protocols.