DM2218C / EM2218C User’s Manual - Page 3 of 8
Script Playback Mode
Instead of playing just a single file, Script Playback mode executes
a script of commands for each trigger.
Written in the configuration file using plain ASCII text, the script
consists of multiple lines each containing the commands for a par-
ticular trigger in the following format:
?nnn=Command1,Command2...
Here “nnn” is the trigger number and “?” is one of the following:
N - Non-interruptible
Execution of this trigger is not interruptible.
I - Interruptible
Execution of this trigger can be interrupted by any trigger including
itself.
H - Holdable
Execution of this trigger continues for as long as the trigger is
present, repeating itself if necessary. The execution stops immedi-
ately when the trigger is no longer present.
In the DS and RS modes, there are 8 direct triggers (001 ~ 008,
corresponding to T1 ~ T8). In the BS mode, there are 128 direct
triggers (001 ~ 128, corresponding to the binary code on T1 ~ T7).
In addition to the direct triggers, there are also indirect triggers. An
indirect trigger can be activated only by jumping from another trig-
ger using the Jump command.
In the DS and RS modes, there are 991 indirect triggers (009 ~
999). In the BS mode, there are 871 indirect triggers (129 ~ 999).
These are the script commands:
Fnnn - play File #nnn
Example: F168 plays file #168.
Wnnnnn - wait nnnnn units of 0.1 second
Example: W00020 waits 2 seconds.
Jnnn - jump to trigger #nnn
Example: J007 jumps to trigger 007.
BF - turn off the Busy output
The Busy output is always turned off at the end of the script. Use
this command to turn it off before the end of the script.
BN - turn on the Busy output
The Busy output is always turned on at the beginning of the script.
Use this command to turn it on if it has been turned off previously
by the BF command.
END
Always add the word END at the end of the entire script. You may
add any comments for your own reference after END.
Important Notes
- Script lines must be separated by carriage returns (the Enter key).
- A script line is limited to 128 characters, excluding ‘=’ and ‘,’. If
more space is needed, use the Jump command.
Automatic Execution of Script 000
Upon powerup or reset, the system will automatically executes script
000 once if it exists.
Script Examples
DS
N001=F007,BF,W00030,BN,F899,J168
I168=F001,W36000,J168
H033=F273
END
DS is not really a script command, but it tells the system to enter the
Direct Script mode. You can also use RS or BS to enter the Round-
Robin Script mode or the Binary Script mode.
When the T1 input is triggered, the system start executing trigger
N001. Since this trigger is non-interruptible, it will always executes
to the end. Trigger N001 is executed as the following:
- play file #007,
- turn off the Busy output,
- wait 3 seconds,
- turn on the Busy output,
- play file #899,
- jump to trigger 168 (I168).
Trigger I168 is executed as the following:
- play file #001,
- wait 60 minutes,
- jump back to itself.
Since trigger I168 is interruptible, this endless loop can be broken
by any future trigger.
Trigger H033 will never be executed because it is an indirect trig-
ger in the DS mode, yet it is not jumped to by any other trigger.
Background Music Example
The automatic execution feature can be used to play background
music while no trigger is being executed. For example,
DS
I000=F123,J000
N001=F001,J000
N002=F002,J000
N003=F003,J000
END
Here file #123 will be looped since power-up but can be interrupted
by trigger inputs T1, T2, and T3. After interruption, it always jumps
back to trigger 000 so file #123 starts to loop again, although from
the beginning instead of where it left off.
