DESIGNER’S HANDBOOK 4189350049C EN
Page 131 of 206
11.3.1.3
Select new label or unit
If one or more text boxes with labels or units are embedded in the selected virtual indicator, it is also possible to
select a new label or unit from a list or to add a new text from the virtual keyboard. The procedure is exactly the
same as explained for headlines.
11.3.2
Warning marks/restricted band
XDi supports up to 4 restricted bands for each data type presented on an indicator. The restricted bands can be
used to indicate warning sectors on the scale of an analogue indicator.
Application example: on the RPM indicator for a two-stroke MAN engine, the
“Red sector” indication is implemented
in the RPM bar graph. The red sector is configured during installation and sea trails, indicating the RPM range
where the engine should not normally operate (these restrictions could be due to resonances causing heavy
vibrations).
One red sector is activated and shown on the RPM scale.
In the virtual indicator, it is also possible to define that the bar graph will shift colour when the input value enters
a restricted band, as in this example where the bar graph shifts from green to yellow when RPM is within the
restricted band. This can help make it very visible that you are now operating your engine in a restricted RPM
range and should only be in this range for a short time. In the above picture the small yellow pointer is showing
that you are actually commanding the engine to go to 128 RPM.
The warning marks must be designed into the virtual indicator to be operational.
11.3.2.1
Edit warning marks and related critical bands
Below is shown an example where the Propeller RPM indicator has up to 4 critical bands defined.
Please note, that the added “user headlines” are stored in the permanent memory of the XDi, but
if you restart the setup wizard and select a new VS, the added headlines will be erased.
