External USB devices

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HMIs, human machine interfacesPanel PC, ET / MT 4x8...Electrical InstallationConnection ofConnection of accessoriesExternal USB devices



If intrinsically safe devices of Class Ex-i are connected to the Ex-e USB interfaces of the device, R. STAHL Systems GmbH cannot guarantee that the intrinsic safety of these devices will continue to apply


The following versions are possible:

1.If a USB device that is not connected to the mains is connected, voltage can be supplied from the internal power supply (terminal 1).

2.If a USB device that is connected to the mains is connected, the internal power supply (terminal 1) must not be connected. The power must be supplied from an external device.


The following chapters describe how to connect external USB devices to the X6 terminals:


Kapitelseite Commissioning Rules

Kapitelseite Connection in safe area




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