User's Manual

Since there are both app HMI and physical HMI, in order to keep hmi alive for each click operation at a time,
the logic is that physical HMI has higher priority than app HMI. If app HMI wants operation on the buttons,
the app need tell physical HMI that I want to operation in app HMI, then physical HMI will give the permission
to app HMI. So there is enable/disable button to get the permission from physical HMI.
Figure 7. enable key button
3.6 Cyber Security
Disclaimer
This product is designed to be connected to and to communicate information and data via a digital
communication interface. It is your sole responsibility to provide and continuously ensure a secure
connection between the product and your network or any other network (as the case may be). You shall
establish and maintain any appropriate measures (such as but not limited to the application of authentication
measures etc.) to protect the product, the network, its system and the interface against any kind of security
breaches, unauthorized access, interference, intrusion, leakage and/or theft of data or information.
ABB Ltd and its affiliates are not liable for damages and / or losses related to such security breaches, any
unauthorized access, interference, intrusion, leakage and / or theft of data or information.
Encryption
To secure the BLE communication between Remote HMI APP and Smart HMI device, the encryption of AES
algorithm is applied. Once you want to connect to the BLE device, you need to type the crypto password with
6 numbers or characters first in the “Cryptokey” box, as the following.