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Crestron SIMPL+

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Contents

SIMPL+

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Introduction ...............................................................................................................................1

What is SIMPL+?........................................................................................................ 1

For Whom is this Guide Intended?..............................................................................1

Using SIMPL vs. SIMPL+.......................................................................................... 2

What is Needed to Use SIMPL+?................................................................................2

Where Can I Get More Information?...........................................................................2

Quick Start.................................................................................................................................2

Writing Your First SIMPL+ Program: “Hello world!” ...............................................2

Making it Work ...........................................................................................................4

The Structure of a SIMPL+ Program.........................................................................................5

Compiler Directives.....................................................................................................5

Include Libraries.......................................................................................................... 7

Variable Declarations ..................................................................................................8

User-Defined Functions.............................................................................................10

Event Functions.........................................................................................................10

Function Main ...........................................................................................................12

Working with Data (Variables)................................................................................................13

Input/Output Types....................................................................................................13

All About Variables...................................................................................................16

Arrays........................................................................................................................20

Operators, Expressions, and Statements ..................................................................................22

Operators ...................................................................................................................22

Expressions................................................................................................................ 23

Statements .................................................................................................................24

Controlling Program Flow: Branching .................................................................................... 24

if–else ........................................................................................................................ 24

switch–case................................................................................................................ 26

Controlling Program Flow: Loops...........................................................................................27

for Loops ...................................................................................................................27

while and do-until Loops...........................................................................................29

Exiting from Loops Early.......................................................................................... 30

Using System Functions ..........................................................................................................30

User Defined Functions ...........................................................................................................31

Function Definitions.................................................................................................. 32

Defining Local Variables In Functions......................................................................34

Passing Variables to Functions as Arguments...........................................................35

Functions That Return Values ...................................................................................36

Function Libraries ..................................................................................................... 38

Compact Flash Functions.........................................................................................................39

CheckForDisk and WaitForNewDisk........................................................................ 39

Reading and Writing Data.........................................................................................40

Working with Time..................................................................................................................42

Delay .........................................................................................................................42

Pulse ..........................................................................................................................43

Programming Guide – DOC. 5789A Contents • i