B&B Electronics VFG3000 - Manual - Manual (Page 35)

C ONFIGURING C OMMUNICATIONS S LAVE P ROTOCOLS
R EVISION 1 P AGE 19
A
DDING
I
TEMS TO A
B
LOCK
Once the block has been created and its size defined, entries appear in the left-hand pane of
the window to represent each of the registers that the block exposes to remote access. When
one of these entries is selected, the right-hand pane shows a list of available data items,
comprising both tags from within your database, and data registers from any master
communications devices that you have configured…
To indicate that you want a particular register within your gateway block to correspond to a
particular data item, simply drag that item from the right-hand pane to the left-hand pane,
dropping it on the appropriate gateway block entry. The example above shows how the first
four registers in the block have been mapped to tags called
Tank1 through Tank4 , indicating
that accesses to 40001 through 40004 should be mapped to the respective variables.
A CCESSING I NDIVIDUAL B ITS
If your application requires it, you can expand individual elements within a Gateway Block to
their constituent bits, and map a different data item to each bit. To do this, right-click on the
element in question, and select Expand from the resulting pop-up menu. The right-hand pane
will be updated to show the individual bits that make up the register, and these can be mapped
using the drag-and-drop process described above.