RS.8D.M1.22 AK2-SC 255 Reference Manual 153
Completing that working example hopefully increased your comfort with calculated
points. Now we will go through each of the fields and functions in order.
The heading fields Here is the heading area of the calculated points screen:
Units We’ve discussed the Units field and its contents earlier. The contents specify the type
of point being created, whether an OI or SI. The 13 kinds of SI are differentiated by
the units in which their values are presented. There is one special selection you can
make from the Units list box:
<Delete> Use this button in the style box to delete the calculated
point. Higher numbered points will remain in place. The
deleted point will be the next new point made available
for configuration.
Style To understand the various styles of Calculated SI and OI points, we will give use the
initial framework screens that display when each combination of Units and Style is
selected. We will present them by style.
<Clear> This button clears the configuration for the selection of
a new style.
Generic (OI, SI) The style we used for the example just
completed.
Clone (OI, SI) Offers a means of cloning any physical board
& point to be used elsewhere in the system.
Schedule (OI only) Used to create an OI that will be on or off
according to a schedule.
Cut In/Out (OI only)
Latch (OI, SI) Once turned on by a true rule, the point will
remain on until a physical switch (wired to an OI) is
operated to turn it off.
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