Crestron SIMPL+ Reference Manual page 63

Crestron SIMPL+
Language Reference Guide - DOC. 5797G
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Example:
DIGITAL_OUTPUT State1, State2;
Signifies that two digital signals are to be sent to a SIMPL program from this
SIMPL+ program.
NOTE: For example, if State1 is jammed high via a BUFFER from outside the
SIMPL+ program, the value of State1 becomes 1 and should be handled accordingly
in the SIMPL+ code.
DIGITAL_OUTPUT state_bits[3];
Signifies that up to three digital signals are to be sent to a SIMPL program from this
SIMPL+ program. The names are referred to as state_bits[1] through state_bits[3].
The same jamming rules apply as in the previous example.
DIGITAL_OUTPUT state_bits[3,3];
Same as above except all three are always shown on the symbol.
Version:
SIMPL+ Version 3.01 - Fixed arrays and minimum sizes.
SIMPL+ Version 3.00 - can no longer be passed to functions by reference. (2-Series
Control Systems only)
SIMPL+ Version 2.00 for DIGITAL_OUTPUT arrays.
SIMPL+ Version 1.00 for everything else.
Software
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SIMPL+ 53