HMI device basic settings

HMI devices are delivered from factory without Runtime. If no Runtime is installed on the device, see "The Runtime loader" for details.

Runtime modes

The JMobile HMI Runtime is composed of two logic units:

• Server: runs communication protocols, collects data, monitors alarms, drives trend buffer sampling.
• Client: displays data collected by server.

The server unit is responsible for handling the HMI services such as the communication protocols, performing data acquisition, driving trend buffer sampling activities, monitoring alarms, and so on.

The client unit is the part which is responsible for the visualization process: use the data collected by the server to render it on the display as graphical information.

The server unit works in two operating modes:

• Configuration mode: server is idle (for example when no project is loaded on the device or some system files are missing).
• Operation mode: server is operating according to the settings defined by the system files and by the loaded application project.

Note: Data on client may be displayed even if no activity is running on the server.