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Wait Event Instruction
— Wait Event d
d = 0 to 20 (events)
Note: This is a very specific custom feature and may now accomplished by using one of the general
purpose timers.
This instruction is used in conjunction with the Exception timer. When this instruction is used in a
program, it causes the program to wait for either the Exception timer to expire, a cue or start input.
If any one of these conditions becomes true, a cue is generated that causes the program to ‘fall
through’ the next Wait Cue instruction in order to execute the next set of instructions. The timer can
only be started by a client from any one the CAI channels with the Start Exception Timer (SXT)
command. If the timer is started, it cannot be re-armed or cleared by another CAI client. The eCNA
will return a “Negative Acknowledge #991” in the response indicating it was too late to start the
timer.
This instruction will wait for one of the following:
1. Start Exception Timer (SXT) command.
2. A Start (from eCNA front panel, input or serial command).
3. A Cue (from eCNA front panel, input or serial command).
This functionality is specifically designed to allow the pre-show to complete (or not) under pre-
defined conditions. For example, the pre-show client attempts to arm the Exception timer at 5
minutes before the end of the pre-show. The SMS client also attempts to start the timer when there
is 90 seconds before the start of the feature. If the 5 minute timer is set by the pre-show client, the
pre-show is allowed to finish. If it has not been set yet, the SMS arms the timer for 90 seconds and
the feature starts at the scheduled time. The client that starts the timer sends either a start or cue
command when it wants to start the feature. If the timer is allowed to expire, an automatic cue is
generated and the feature is started by an eCNA program instruction. The exception is logged to both
the Log (LOG,EVT) and Event (RPT,EVT) files as:
“CueXTO_1” (from CAI channel 1)
“CueXTO_2” (from CAI channel 2)
“CueXTO_3” (from CAI channel 3)
In order to determine if the program is waiting in the correct Wait Event instruction, the client can
request the status of the Wait Event instruction with the Exchange Status (XST), Request Status
(RST) or Status (STS) commands. The client can also request the Exception timer status with these
commands.
Miscellaneous Instructions
Volume Instruction
This instruction controls the Volume level and Fade Time to the RVC-5 Remote Volume Control
card. This instruction can be used for automatically changing the auditorium sound level.
Volume d1 dB Fade Time d2 dd:dd
d1 = -50.0 to +10.0 (decibels)
d2 = 0 to 10 (seconds)
dd:dd = 0:00 to 99:99 (minutes:seconds)
The offset timer (dd:dd) can be used to delay the operation of the output. Refer to Section 4.3.22 for
more information.
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eCNA-10 Operation and Installation Manual Version 1.270-00
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