Function Block FS_ISDEV

The Function Block FS_ISDEV checks whether a storage medium is present.

Tip: The output can be directly connected to the Function Block FS_INIT.

Input DEV

Defines the device from which files are to be accessed. The device is used per project and can be managed in the context menu under Project ▸ External Storage.

Output EXISTS

The output is true if the storage medium has been found and is ready. This is also the case when the service has started.