Honeywell VRX180 User Manual
Page 251
Online Operation Using Menus
Video Recorder – User Manual
237
Table 7-9 Tune Loop Prompts (continued)
Prompt
Range/Selections
Definition
DISPLAY TUNING
TREND
Select this to display the actual tuning trend with PV and
setpoint (Figure 7-2). Data collection for this trend display
will continue as long as the display shows either the trend or
the Loop Tuning Menu. Use this display to help find the
optimal tuning parameters.
Note: If you access this display through a loop display (by
Tabbing to and selecting the loop tag name at the top of any
loop display), the trend data is not buffered when you leave
and return to this tuning trend display. Therefore, if you wish
to adjust tuning parameters and then look at the trend to see
the effects, it is recommended you select Tune Loop through
the Online menu, not through a loop display.
APR02 97
LP1
AUTO
SP1
0.00
PV
60.00
OUT
3.5
SP
52.00
DEV
8.00
15:37
200.00
Figure 7-2 Control Loop Tuning Display