Electronic Theatre Controls Emphasis Lighting Control System Dokumentacja Pobierz pdf (Strona 267)

24 Using Show Control 253

Time Code

Ion has time code functionality based on a timing source and a list of events that execute at specific

times of that timing source. You can compile event lists and have them play back later while

following a timing source.

Time code lists can receive timing data from either SMPTE or MIDI sources. Ion accepts up to 32

SMPTE sources and 32 MIDI Time Code (MTC) sources (each are numbered from 1-32).

Enabling Time Code

Ion has global enablers for MIDI Time Code and SMPTE. These are found in Setup, Show Control,

page 83.

If the MIDI Time Code setting is disabled, all MTC event lists are disabled as well. If enabled, all

MTC lists are enabled. The same is true for SMPTE.

Timing Data

Timing data is given in the form of (hours) : (minutes) : (seconds) : (frames). Therefore a timing

value of 06:25:15:20 would be 6 hours, 25 minutes, 15 seconds, 20 frames.

The number of frames per second is determined by the timing source and the event list must be set

to this same number of frames when programming. Number of frames can be 24, 25, or 30.

Internal vs. external time

Under normal operation, Ion receives timing information from an input source, using a show control

gateway. This timing source is referred to as external time, since it is coming from a source external

to Ion.

If the external time source stops for any reason, each event list within Ion has an internal timing

source which will assume control. This internal timing source requires three pieces of information to

determine how to generate its timing: first time, last time, and frame rate.

When the internal clock reaches the last time, it will reset to the first time and continues running.

Although external timing may run faster or slower than real time, the internal clock runs only at real

time.

Color coding

The color of the time in the “Status” column of the event list display indicates the source of the

timing data. The colors and indications are:

Green - Valid external timing is being received.

Red - The internal clock is the data source and is running.

Grey - No timing data is available.

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Electronic Theatre Controls Emphasis Lighting Control System Dokumentacja Strona 267