Siemens FEC920 User Manual page 205

Flow energy calculator
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2.
Compounds can also be created by highlighting one or more function
blocks in the top level diagram and then clicking on the 'Create Compound'
tool bar icon. The highlighted items are moved from the top level diagram
into a new compound.
3.
Compounds are 'uncreated' (flattened), by highlighting the relevant item in
the top level menu and then clicking on the 'Flatten Compound' tool bar icon. All the items previously
contained within the compound appear on the top level diagram.
4.
Wiring between top level and compound parameters is carried out by clicking on the source parameter,
then clicking on the compound (or the compound tab) and then clicking on the destination parameter.
Wiring from a compound parameter to a top level parameter or from compound to compound is carried
out in similar manner.
5.
Unused function blocks can be moved into compounds by dragging from the tree view. Existing blocks
can be dragged from the top level diagram, or from another compound, onto the tab associated with the
destination compound. Blocks are moved out of compounds to the top level diagram or to another
compound in a similar way. Function blocks can also be 'cut and pasted'.
6.
Default compound names (e.g. 'Compound 2') are used only once, so that if, for example, Compounds 1
and 2 have been created, and Compound 2 is subsequently deleted, then the next compound to be
created will be named 'Compound 3'.
7.
Top level elements can be click-dragged into compounds.
TOOL TIPS
Hovering the cursor over the block displays 'tooltips' describing that part of the block beneath the cursor. For
function block parameters the tooltip shows the parameter description, its OPC name, and, if downloaded, its
value. Similar tooltips are shown when hovering over inputs, outputs and over many other items on the iTools
screen.
A Function Block is enabled by dragging the block onto the diagram, wiring it, and finally downloading it to the
instrument. Initially blocks and associated wires are drawn with dashed lines, and when in this state the
parameter list for the block is enabled but the block is not executed by the instrument.
The block is added to the instrument function block execution list when the 'Download' icon is operated and the
items are redrawn using solid lines.
If a block which has been downloaded is deleted, it is shown on the diagram in a ghosted form until the
download button is pressed. (This is because it and any wires to/from it are still being executed in the
instrument. On download it will be removed from the instrument execution list and the diagram.) A ghosted block
can be 'undeleted' as described in 'Context menu', above.
When a dashed block is deleted it is removed immediately.
September 18
FEC920: USER GUIDE
A5E45696052A Rev-AA
Create
Flatten
compound
compound
Page 197

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