IOServer Status Tag not refreshed

When I defined a Status Tag in a IOServer, it stays to 0, even if the target device is well connected?

It happens when you define only the Status Tag without any other tags.

Solution: create another Tag on the same target

The Status Tag is not a true IOServer register, it's an eWON internal register that reflects the state of the communications.
To update the status, eWON needs a communication to the device. That's why you must create a tag that really read a value in the target device.