5.13
Bargraph type for instruments with bargraph display
Display:
bAr tYPE
Range:
bAr
,
S.dot
,
d.dot
,
C.bAR
or
r.dot
Default Value:
bAr
Bar graph display operation mode - seen only in vertical or circular bargraph display instruments.
Allows selection of bargraph operation mode. Choices available are:
•
bAr
- conventional solid bargraph display i.e. all LEDs illuminated when at full scale. When
scaling the display use the
bAr_
and
bAr~
functions e.g.
bAr_
=
0
and
bAr~
=
100
will give a bargraph with no segments lit at a 7 segment display reading of
0
and all
segments lit with a 7 segment display reading of
100
.
•
S.dot
- single dot display. A single segment will be lit to indicate the input readings position
on the scale. When scaling the display use the
bAr_
and
bAr~
functions e.g.
bAr_
=
0
and
bAr~
=
100
will give a bargraph with the bottom segment lit at a 7 segment
display reading of
0
and the top segment lit with a 7 segment display reading of
100
. Note:
this could also be set up as a centre zero single dot display by entering a negative value and
positive value. e.g.
bAr_
=
-100
,
bAr~
=
100
.
•
d.dot
- double dot display. Two segments will be lit to indicate the input reading position
on the scale. The reading should be taken from the middle of the two segments. When scaling
the display use the
bAr_
and
bAr~
functions e.g.
bAr_
=
0
and
bAr~
=
100
will
give a bargraph with the bottom two segments lit at a 7 segment display reading of
0
and
the top two segments lit with a 7 segment display reading of
100
. Note: this could also be
set up as a centre zero double dot display by entering a negative value and positive value.
e.g.
bAr_
=
-100
,
bAr~
=
100
.
•
C.bAr
- centre bar display. The display will be a solid bargraph but will have its zero point
in the middle of the display. If the seven segment display value is positive the bargraph will
rise. If the seven segment display value is negative then the bargraph will fall. When scaling
the display use the
bAr_
and
bAr~
functions e.g.
bAr_
=
0
and
bAr~
=
100
will give a bargraph with all the bottom half segments lit at a 7 segment display reading of
-100
and all the top segments lit with a 7 segment display reading of
100
.
•
r.dot
- modulus or wrap around single dot bargraph. This mode of operation allows the
bargraph to wrap around the limits set by the
bAr_
and
bAr~
functions by dividing
the 7 segment display by the modulus (the modulus is the difference between 0 and
bAr~
) and displaying the remainder. For example if
bAr_
is set to
0
and
bAr~
is set to
10
then in other bargaph modes when the 7 segment display reads a value such as
25
the
bargraph would be stuck at the high limit of its travel since it cannot go beyond
10
. In
r.dot
mode the display will wrap around at
10
then continue up the bar again and will be
at the midpoint of the bargraph when the 7 segment display shows
25
(as it would for a 7
segment display of
15
,
35
, etc.). In this example for a 7 segment display of
25
the value of
25 is divided by the modulus value of 10 in this example and the remainder displayed i.e. 10
goes into 25 twice with the remainder of 5 and so a bargaph position of 5 is displayed. This
mode will operate on both vertical and circular bargraph type displays.
26 of
PM4BCMAN-2.0-0
Summary of Contents for PM4-BC
Page 7: ...3 5 Parallel BCD input PM4BCMAN 2 0 0 7 of 40...
Page 8: ...3 6 Strobed BCD input 8 of 40 PM4BCMAN 2 0 0...
Page 9: ...3 7 Addressed BCD input PM4BCMAN 2 0 0 9 of 40...
Page 10: ...3 8 Parallel binary input also used for Gray code 10 of 40 PM4BCMAN 2 0 0...
Page 11: ...3 9 Strobed binary input also used for Gray code PM4BCMAN 2 0 0 11 of 40...
Page 12: ...3 10 Addressed binary input also used for Gray code 12 of 40 PM4BCMAN 2 0 0...
