Honeywell VRX180 - Manual (Page 166)

Programming Function Blocks and Features
Video Recorder – User Manual 152
Display Setup Procedure
Table 4-54 describes the display setup procedure.
Table 4-54 Display Setup Procedure
Step Action
1 Select Program Displays from the Program mode menu.
2 For each display format desired (trend, bar graph, panel display, unit data), specify points to be
displayed.
3 Assign up to 10 displays to the Display buttons.
Set Up Trend 1
Table 4-55 describes the trend display setup procedure.
Table 4-55 Set Up Trend 1 Prompts
Prompt Range/Selections Definition
ENABLE Yes, No Enables or disables a specific trend.
POINT #1
POINT #12
Analog or discrete
parameters Select up to 12 analog or discrete points to be displayed as a
vertical or horizontal trend. Trends of discrete points will
show a value of 1 when ON and 0 when OFF.
NORM TIME BASE 5, 15, or 30 minutes, or 1, 2,
4, 8, 24 hours, 7 days or
31 days. Equivalent paper
chart speeds are listed in
Table 4-56. Enter the trend display time base for Normal (typically slow
speed). The time base is the time period shown for one full
screen.
ALT TIME BASE 5, 15, or 30 minutes, or 1, 2,
4, 8, 24 hours, 7 days or 31
days. Equivalent paper
chart speeds are listed in
Table 4-56. Enter the trend display time base for Alternate (typically fast
speed). The time base is the time period shown for one full
screen.
SET DISPLAY
LIMITS
OFF or number Set the high and low full-scale display limits for each point. If
you select OFF for a limit on this display, the limits
programmed for the analog point (either RANGE LOW and
RANGE HIGH or OUT LOW LIMIT and OUT HIGH LIMIT) will
be used as the trend limits for that point.
The accuracy of a trended point is determined only by the
original output limits of the point, not by setting wider or
narrower limits here. Setting excessively narrower limits here
will result in a viewable trend with a high degree of
inaccuracy when viewed as a % of the screen. To increase
accuracy over a narrower range, decrease the programmed
output range (limits) of the point itself.
TIMEBASE
SELECTOR
OFF, discrete parameter, 0,
1 Enter a discrete parameter which will cause trend to display
alternate timebase when ON and normal timebase when
OFF.