Xylem System 5000 BASIC Manual - Manual (Page 5)

Basic Features and Fundamentals
The System 5000™ Data Collection Platform contains a built-in BASIC interpreter (as of
firmware version 1.2.0) allowing for more complex operations on the data logger. Many
traditional BASIC commands and features have been combined with a new subset of operations
to create the Basic 5000 language. Basic 5000 is thus able to provide a familiar BASIC base
while also providing direct access to the hardware and operations of the System 5000™.
Basic Features
• Support for traditional BASIC constructs such as goto, gosub, and line numbers
• Both number and string variables, including single and multi-dimensional arrays
• Built-in string and variable processing functions
• Easy access to COM/Serial Ports using simple PRINT and INPUT commands
• Easy access to Log Files using simple PRINT and INPUT commands
• Structured programming commands including SWITCH-CASE statements, single
and multi-line IF-THEN statements and FOR, WHILE, REPEAT, and DO loops
• User-created subroutine/function support
• Ability to use a Basic program as either an Input or an Output for any Task
• Ability to execute a program in response to Network or Serial communication
• Ability to perform complex math operations using built in trigonometric and
logarithmic functions
• Ability to use a Basic program’s returned values within Outputs (Log File, GOES, etc)
• Ability to run a program in response to incoming RS-232 serial communication
• No file size limit on Basic programs
• No limit on number of Basic programs on the system
• Easily transportable, programs appear as individual files in the Data File Manager
• Ability to perform new measurements of any hardware on Inputs (Analog,
Digital, etc) as well as Outputs (4-20mA, Digital, etc)
• Ability to retrieve current and previously measured values of any Task
• Access to system variables including current date and time and all subsets
• Ability to perform complex math operations using built in trigonometric and
logarithmic functions
• Simple program customization via the touch screen interface
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Understanding the available functions and commands as well as the overall operations and flow
of Basic 5000 is essential to its proper use within the System 5000™. Primary Basic 5000
concepts and examples are provided below, followed by a listing of all available commands and
functions. Each command is given a description and an example of its use.
Basic Fundamentals