# Use Persistent Camera Enumeration

Cognex Designer and its integrated VisionPro software provide an advanced capability called Persistent Camera Enumeration (PCE). PCE allows you to directly assign a specific Camera Device within Designer to a specific camera.

Persistent Camera Enumeration is an advanced capability that is turned off by default, which means that Designer and VisionPro will manage the assignments for you. Having Designer automatically manage the camera assignments will be acceptable in most situations. Instances where you may experience inconsistent assignments include when cameras are frequently failing which may cause the camera assignments to change.

Recommendation: It is only recommended to consider using PCE if you are for working with multi-camera applications AND experiencing inconsistencies with how Designer is assigning specific Camera Devices to specific cameras. PCE provides no perceived benefit for single camera applications.

Related Topics For more information on PCE and how to use it, consult the Using Persistent Camera Enumeration topic in the VisionPro® Online Documentation.