Initiate Commands; How To Execute The Programmed Or Initiated Functional Commands - Philips System 21 Quick Operating Manual

8-4. INITIATE COMMANDS
With initiate commands, it is possible to recall the functional commands from the
block-memory. There are two possibilities:
Random recall: One can recall (initiate) any block-memory position. This is done
by "I n" where n ( =0 .. . 19) is the memory position to be initiated.
Serial recall: This is used with "Block Operation". For a description with
example see 8.8.
Example of a random recall at unit address 213:
"AID213;1 2" Block-memory position 2 is initiated.
The initiating of commands from the block-memory is comparable with direct
programming. It does not automatically conclude that these commands are also
executed. Execution only follows when execution conditions are met (see next part) .
8.5-
HOW TO EXECUTE THE PROGRAMMED OR INITIATED
FUNCTIONAL COMMANDS
In the default position of the system, the execution of commands sent to the slaves
is immediately after receipt of the individual commands. This is the "Execute
Unconditional" mode. To enable synchronisation of actions within a slave or
between different slaves, two further execution modes are available:
- "Execute on X" where programmed or initiated commands are simultaneously
executed on the first following character "X" received by the slave.
"Execute on Trigger" where programmed or initiated commands are executed on
next trigger-impulse on the System 21 internal trigger line (see 8.6).
These execution modes of the individual slaves can be programmed by the
following commands (example with unit address 312):
Command Description
"AID312 ; E~U " Execute Unconditional mode
"AID312;E~X "
Execute on command " X" mode
"AID312 ; E~T "
Execute on Trigger mode (see 8.6)
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