B&B Electronics VFG3000 - Manual - Manual (Page 374)

G ENERAL V LINX F IELDBUS G ATEWAY M ANAGER U SER M ANUAL
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Values show “ ----” No communication with target device See Serial Communication or Ethernet
Communication.
Value does not
update. The tag on the screen is not linked
correctly. Check the tag mapping making sure
the target device (PLC, etc.) register is
correct.
Check the primitive Data Source in the
user interface in case the word WAS is
displayed. Re-link the tag in this case.
Value shows +BIG or
–BIG. Not enough digits before the decimal
point to show the number. For
example, data is
1000.5 and format
is three digits before the decimal point
and one after.
Increase the number of digits before
the decimal point in the tag format.
Value deviates by a
factor of ten. The tag format is not correct. Change the decimal point position in
the tag format.
Value is invalid. Incorrect tag type. Check if the tag type corresponds to the
data type. Is the data a floating point
number and thus the tag a real (Pi
symbol), and not an integer (X symbol)?
Incorrect data mapping. Check if the tag is accessing the
correct target device register.
Incorrect primitive on the display. Check if the primitive corresponds to the
tag type. For example, primitive is a Text
Integer so the tag has to be an integer.
Data received is not what’s expected.
For example, bytes reversed in
the word. Use the transform property on the tag
to modify the data source. You might
have to try multiple solutions to solve
the issue.