Modes
Screen mode
Screen mode is designed for engineering of screens, such as HMI (human machine interface) or those for SCADA (supervisory control and data acquisition) systems, as well as the engineering of related symbols and libraries.
Basically, there are two types of screens:
1. Main screens
Screens with lines, navigation, and static or dynamic symbols. An HMI or SCADA screen is frequently used as display, although alternatives such as a PFD screen are are possible as well.
2. Pop-ups
A graphical user interface display area that appears ("pops up") in the foreground of the visual interface, typically as a smalller window. Pop-ups are initialited using a single or double mouse click or a certain key combination.
The basic and graphic symbols are meant to be used in screen mode. When using logic symbols in screen mode, logic functionality won’t be available.
Logic mode
Logic mode is designed for engineering logics and process models, as well as the engineering of related symbols and libraries.
In logic mode, the content can be divided in two layers:
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Logics layer containing logics and control functionality.
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Simulation layer containing field simulation (if applicable) and process model.
Definition |
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Field simulation |
simulation of the connected measurements (instruments) and actuators (valves, motors). |
Process model |
simulation of the process and/or machine. Process model are based on calculations (e.g. physics) and predefined relations between variables (e.g. based on behaviour existing installation). |
The logic and process model symbols are meant to be used in this mode. Although using basic and graphic symbols is not blocked logic mode, using these symbols in this mode is not intended.