Doc. 177/5250x
Rev A
6-14
The Bar Graph
The bar graph is a rectangular analogue graph. This is intended to show a variety of data
including speed and motor RPM.
The graph is constructed from the data parameters which can fully control the shape and
appearance on screen.
The graph is intended to have tick marks, with values suitable to the selected data object.
Sub index items
The bar graph uses the following specific sub-items:
Sub index Description type
Sub 5 Graph flags. Control specific appearance settings. U16
Sub 6 Data 1. Width of frame. U16
Sub 7 Data 2. Height of frame. U16
Sub 8 Data 3. Low alarm value below which the graph will
display red
U16
Sub 9 Data 4. High alarm value above which the graph
will display red
U16
Sub 10 Data 5. Not currently used U16
Sub 11 Data 6. Maximum value displayed U32
Sub 5 – Style flags
The style flags are contained within an u16 item. The flags help to define the operation of
the item.
The following attributes can be configured:
Direction of the graph fill.
Tick marks on / off.
How the value of the data object is shown on the graph. Standard filled bar graph,
or position marker.
Represented as binary, msb at the left, the object is constructed as shown below. ‘u’ indicates
that the bit is unused.
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