Lauda IN 550 XT FC Operation Manual page 116

Operating the device with the app
Security with the web browser
Fig. 72: Controller ID
116 / 171
Requirements
The LAUDA device and the PC/control station must be connected to
n
the same network. The network settings can either be set automatically
( DHCP on ) or manually ( DHCP off ) on the device Ä Chapter 4.7.3
"Configuring the Ethernet interface" on page 38.
Connection to the device via the LAUDA Command App
LAUDA recommends using the LAUDA Command app. If you use
this app, state-of-the-art security mechanisms which offer a very
high level of security against digital threats are automatically put in
place. In addition to this, the App has an integrated search service
for LAUDA devices in the local network, so that manual entry of a
host name or IP address is no longer necessary.
You are using the LAUDA Command app. This automatically searches for
existing devices in the network. The devices found are displayed in a list.
Select the required device. Connection to the device is established. If a
connection to a device was established before closing the App, connection
to this device is established when the App is started again.
The LAUDA device can be accessed with a web browser if users cannot use
the LAUDA Command app for technical reasons or IT guidelines prohibit
this.
You must install the LAUDA CA certificates (Root CA, Device CA) to
obtain a high level of security when using a web browser.
You must carry out the following before using a web browser:
1. Download the CA certificates from the LAUDA homepage before
connecting for the first time.
Open the LAUDA homepage, tap  Services  Download center.
2. In the Download center, chose the [Certificate] option in the [Docu-
ment type] drop-down list.
A list of the certificates appears.

3. Tap the relevant certificate.
The download starts and a zip file is downloaded.

4. Install the certificates on all end devices which will be used later to
access the LAUDA device.
5. Answer the question about whether you trust the LAUDA certificates
with [Yes].
6. Compare the Common Name of the device certificate with the Con-
troller ID of your LAUDA device during the initial connection setup.
The number can be displayed in the device menu  Device Status
 Controller ID.
The 24-character identification number is displayed. This can

consist of the numbers 0-9 and the letters A-F. This is shown on
the display in three number blocks (digits 1-8, 9-16 and 17-24).
7. Confirm the connection.
Integral process thermostats with flow control unit V4