ETC Ion - Theatre Uwinnipeg

Live and Blind
Live and Blind are methods to view and edit data in your show files. When you press the
[Live] key, the screen will show you the live display. When you press [Blind], you will see
the blind display. In either case, you may use the [Format] key to alter how the data is
displayed (see Using [Format], page 43).
When in Live, the data displayed represents the data being sent from the console at that
moment. In other words, the parameter data that is “live” on stage. When you edit data in
live, those changes will become active and visible on stage as soon as the command line
is terminated.
When in Blind, the data displayed represents data from the record target you choose to
view (cues, presets, palettes, and so on). When you edit data in Blind, changes will not
automatically appear on stage, since the data you are modifying is not live. This is true even
if the record target you are modifying is active on stage. It is possible to play a cue in Live,
then switch to Blind and edit that cue in blind without affecting levels on stage. Edits in Blind
do not require a [Record] command to be stored. They are considered stored when the
command line is terminated. Any display that is not the Live display is considered Blind, and
the Blind LED will be illuminated. For example, if you open patch, the blue LED on [Blind]
will be lit to show that you are in a Blind display.
HTP vs. LTP
HTP (Highest-Takes-Precedence) and LTP (Latest-Takes-Precedence) are terms used to define
the output of a channel parameter that is receiving data from multiple sources. In HTP, the highest
level of all sources will be executed. In LTP, the most recent level received will be executed. Cue
lists and submasters can operate as HTP or LTP for intensity parameters only. Non-intensity
parameters (NPs) are always LTP. Submasters can operate as HTP or LTP for intensity. The default
is HTP. Ion’s default cue list setting for intensity is LTP (see HTP/LTP, page 193). Ion’s default
submaster setting for intensity is HTP.
HTP
HTP is only applicable to the intensity of a channel. HTP channels will output the level that is the
highest of all inputs. HTP channels are also referred to as “pile-on”, because as control inputs are
added (for example - you may bring up cues and multiple submasters that all have the same
channel recorded at various levels), the system calculates which input has the highest level for that
channel and outputs that level for the channel. As control inputs are removed (you pull some of the
submasters down to zero), the console will adjust the channel level, if required, to the highest
remaining level.
LTP
LTP is applicable to any parameter of any channel. LTP output is based on the most recent move
instruction issued to the channel parameter. Any new values sent to the channel will supersede any
previous values, regardless of the level supplied.
Ion determines the LTP value for a channel, which is overridden by any HTP input values that are
higher than the LTP instruction. This is then finally modified by manual control.
Introduction 7