Honeywell VRX180 Manual De Usuario

Table 6-6   Messages and Symbols at Bottom of Display (continued) 

GENERAL ERROR 

Yellow 

This message will appear if the  instrument encounters any error not 
mentioned above. 

S

 

Yellow 

Located in bottom right of display.  Indicates storage is active data is 
being collected on disk or in the instrument’s internal buffer. 

Z

 

White 

Located in bottom right of display.  The display’s upper and lower 
limits are zoomed on a smaller range.  Disappears when Zoom is 
turned off. 

H

 

White 

Located in bottom right of display.  Indicates the display is held on a 
single data point and is not rotating through all data points.  
Disappears when Point Hold is removed. 

 

 

Description 

REVIEW or REPLAY 

White 

Trend Replay/Review.  Adjacent to detailed point information 
(scoreboard) on the screen.  Indicates that the trend on the display 
is from historical data and does not represent the current state of 
the process.   REVIEW means that the data for the trend are from 
current memory (RAM). REPLAY means that the data are retrieved 
from floppy disk (data storage). 

*

 

White 

Analog Input Value Adjust.  Located to the right of the data point 
value.  This message appears only on the AI Value Adjust display. 
It indicates that a bias has been manually applied to the value of the 
particular data point. The symbol will disappear when the value is 
set to OFF. 

 

Red 

Low Alarm Setpoint.  Located above vertical trends, right of 
horizontal trends, along side of bar graph.  These symbols appear  
automatically if a displayed point is the input to one or more Alarm 
function blocks.  The first 4 low type alarm blocks using the 
displayed points are represented by these symbols. 

 or 

 

Red 

High Alarm Setpoint.  Located above vertical trends, right of 
horizontal trends, or along side of bar graph.  These symbols 
appear automatically if a displayed point is the input to one or more 
Alarm function blocks.  The first 4 high type alarm blocks using the 
displayed points are represented by these symbols. 

Flashing between ****** 
and value 

Same as 
data point 

Bad Input Values.  Appears in place of the value on all displays.  
Value is outside the programmed limits.  Caused by an upstream AI 
failure (AI is open circuit and failsafe or is type linear and outside its 
programmed range by 10% or more). 

Flashing between value 
and blank 

Same as 
data point 

Questionable Input Values.  Appears in place of the value on all 
displays.  Value is clamped at its limit. 

Flashing between value 
and blank 

Same as 
data point 

Output Limits of Totalizer or Interval Timer Exceeded.  Appears in 
place of the value on all displays.  Interval Timer ‘s or Totalizer’s 
value is outside its output limits.  Value is not clamped.