Network Activity Led; Rotary Encoder; Exit Button - Lab.gruppen PLM Series Operation Manual

9.7 Network Activity LED

Located above the rotary encoder is an ultra-bright
white LED. This LED illuminates when there is
network activity between the DLC PLM Edition
software and the PLM.
The Network Activity LED can be dimmed
via the front panel by selecting Frame menu,
and then Front - Dimming.
This feature is useful for two reasons:
1) It provides visual confirmation that there is network
communication between the DLC PLM Edition
software and PLM.
2) It enables the engineer to visually confirm which
PLM is selected via the DLC PLM Edition software,
especially if parameters are being changed.

9.8 Rotary Encoder

The rotary encoder is used to alter various PLM
parameters (e.g. input level) in conjunction with the
various display pages. The ring around the knob
illuminates when any menu item is selected that
allows adjustment by the rotary control.
Turn the encoder clockwise to increment (raise)
the selected parameter or counter-clockwise to
decrement (lower) it. Parameters with only two states
(e.g. ON, OFF) are toggled by turning clockwise or
counterclockwise.
With several PLM parameters, it is possible to enable
simultaneous adjustment of a combination of input
and output channels. To select which channels are
adjusted press the associated soft button. This toggles
the displayed parameter value between normal text
and 'inverse video' text. When highlighted, the rotary
controller alters the parameter value. Note: Certain
MENU screens, such as MENU > Module > Limiters
> ISVPL, permit parameters to be adjusted across all
four output channels simultaneously by default.
FRONT PANEL INTERFACE 9
An example:
1. First select the parameter that requires
changing via the MENU screen. e.g. ISVPL.
2. Press MENU > Module > Limiters > IsVPL
The current ISVPL values for output channels 1 to
4 are displayed on the right hand of the screen and
the ring surrounding the rotary encoder is illuminated
indicating that the rotary encoder is active.
Figure 9.8: Activated rotary encoder
3. Pressing the adjacent soft function buttons to
the displayed ISVPL values selects or deselects the
parameters from the rotary encoder.
ISVPL value is highlighted
selected
(inverse video)
De-selected ISVPL value is not highlighted
(standard video)
4. Select which PLM channels are to be assigned
to the rotary encoder, then turn the rotary encoder
to adjust the parameter values as required.
It is also possible to use the multi-select function to
alter multiple channel parameters even if the values
differ between each channel. Turning the rotary
encoder simply adjusts each parameter (by +/- 0.1
V in the case of the ISVPL screen).

9.9 Exit button

The EXIT key is used while navigating the menu
system in MENU mode, and takes the display back
to a previous screen ("up one level" in the menu
tree).
In METER mode, pressing the EXIT key will always
return the display to the HOME view.
PLM Series Operation Manual 29