Honeywell VRX180 user manual Display Setup Procedure, Set Up Trend 1 Prompts

Programming Function Blocks and Features

Display Setup Procedure

Table 4-54 describes the display setup procedure.

Table 4-54 Display Setup Procedure

Step Action

1Select Program Displays from the Program mode menu.

2For each display format desired (trend, bar graph, panel display, unit data), specify points to be displayed.

3Assign 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		Analog or discrete	Select up to 12 analog or discrete points to be displayed as a
POINT #12		parameters	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,	Enter the trend display time base for Normal (typically slow
		4, 8, 24 hours, 7 days or	speed). The time base is the time period shown for one full
		31 days. Equivalent paper	screen.
		chart speeds are listed in
		Table 4-56.
ALT TIME BASE		5, 15, or 30 minutes, or 1, 2,	Enter the trend display time base for Alternate (typically fast
		4, 8, 24 hours, 7 days or 31	speed). The time base is the time period shown for one full
		days. Equivalent paper	screen.
		chart speeds are listed in
		Table 4-56.
SET DISPLAY		OFF or number	Set the high and low full-scale display limits for each point. If
LIMITS			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		OFF, discrete parameter, 0,	Enter a discrete parameter which will cause trend to display
SELECTOR	1		alternate timebase when ON and normal timebase when
			OFF.

152 Video Recorder – User Manual