Frequently asked questions (FAQs)
Order No. 2089 00
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12. Frequently asked questions (FAQs)
• How do I find the IP address of my Gira S1?
Open Windows Explorer. The Gira S1 is displayed together with its IP address in the “Network” -
“Other Devices” area.
• How much Internet data traffic is generated if the Gira S1 is connected to the portal?
To maintain the connection, approx. 400 bytes of data traffic/minute are generated. This corre
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sponds to approx. 560kB/day or 16.5 MB/month. This data volume is not charged as user data by
the Gira Device portal as laid down within the limitation of the data volume in the license agreement
for the Gira S1.
• Which communication channel does the Gira S1 use for the Gira Device portal?
The Gira S1 communicates with the Gira Device portal exclusively via an HTTPS connection using
the default port 443. All data is exchanged in both directions via this one connection, which means
that it is not generally necessary to configure the firewall.
• Why do cookies need to be activated in order to use remote access?
Cookies are used to safeguard access. We use cookies exclusively to secure the connection. There
is no tracking or exchange of data with third parties.
• Which protocols can be used to access devices in the remote network?
Without installing the Gira S1 Windows client, you can access devices in the remote network that
can be reached via HTTP. This includes nearly all devices with a browser-based user interface. These
devices are found automatically via UPnP.
Besides KNX/IP and the Gira HomeServer, all TCP-based protocols, e.g. Telnet, ssh, HTTPS, Win
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dows Remote Desktop, ftp, etc., work with the Gira S1 Windows client.
• Why do the relevant group objects not immediately report that there is no longer a connection after
closing the browser when using the HTTP access?
For a detailed description on this, see see chapter 7.6 “Object table”.
• In my ETS4, the KNX/IP interfaces that are published via the Gira S1 Windows client do not appear
automatically. Why is that?
With ETS4 versions older than ETS4.2, this can lead to problems (see chapter 10.3.1 “Accessing a
KNX installation via KNX/IP”).
• Can the three KNX/IP ETS interfaces be used for download, group and bus monitor?
Yes, the interfaces support all download operations as well as the group and bus monitor.
• Can the Gira S1 device website also be accessed securely via the Internet?
Yes, the status page for the device can be accessed securely via the Internet.
• When downloading the application program, why does ETS report the error that data cannot be
written to a protected area?
Please make sure that your ETS version is up to date. Gira S1 requires ETS from version 4.2 or 5.0.2,
or higher.
Also check whether the versions of the application program and the Gira S1 firmware match.
• Is the portal server really necessary?
Yes, only one server can provide remote access that almost always works and does not require
extensive configuration.
• What data does the server store?
The server only stores data that is absolutely necessary for providing the service. Besides data
entered during login and data that is visible via the user interface, this includes information on the
quantity and time of the data volume transferred.
The server never stores any user data!
