Basic Logic; Not Symbol - Crestron SIMPL Windows User Manual

Software

Basic Logic

NOT Symbol

38 • Crestron SIMPL Windows
Program Formatting – Symbols that help to organize and arrange program
information.
Sequencing Operations – Symbols that assert outputs according to a sequence.
Serial – Symbols that generate, parse, and process serial string data.
System Control – Symbols that affect the logic processor and allow it to
communicate with remote systems and send data directly to the console.
Time/Date – Symbols that process timing data, including astronomical clocks,
calendars, and the processor's internal clock.
Timers – Symbols that remember their previous states and trigger functions at
specified times or after specified delays.
Touchpanel Interface – Symbols for broadcasting serial data to network
touchpanels.
The rest of this section will show examples incorporating the most commonly used
symbols. After reading this section, you can refer to the SIMPL Windows help file,
which includes individual help topics for every logic symbol available in the SIMPL
language.
The term basic logic is used here to describe the most elemental logic elements in
SIMPL. If you have some experience working with digital logic, then you will be
familiar with these symbols. Even if you do not have any prior knowledge of digital
logic, this section should teach you all you will need to know to program
successfully in SIMPL.
NOT Symbol
The NOT symbol, also known as an inverter, simply inverts the input signal onto the
output. That is, whenever the input is high, the output will be low, and vice-versa.
Instead of describing the symbol's operation this way, we can use a truth table, which
shows the logical relationship between the symbol inputs and outputs.
Signal_In Signal_Out
Low High
High Low
Crestron SIMPL Windows
Primer – DOC. 6253