Xylem STORM 3 Basic Programming manual - Manual (Page 32)

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COMMANDS AND FUNCTIONS
A logical operator used between two expressions in conditional statements (e.g. IF, WHILE, etc.).
Returns TRUE if the left, right, or both expressions are TRUE, FALSE if both are FALSE.
var = 100
IF (var > 0 OR var < 50) var = 1 REM sets var to 1
IF (var > 0 OR var < 150) var = 1 REM sets var to 1
OR
A read-only constant containing the number 3.1415926535897932.
var = PI REM sets var to 3.14159
PI
Writes characters to a file or serialport.An automatic carriage return and line feed (\r\n) are added
to all PRINT statements used with file operations unless the statement is ended with a semicolon (;).
PRINT statements used with serial operations send only the characters specified with no additional
characters automatically appended. The USING statement may also be appended for added
precision or to set the number of digits to print, specified with hashes “#”.
Serial communication (RS-232 and RS-485):
OPEN “RS-232 COM” AS #4
REM Wake up the H-3531 sensor by sending a character
PRINT #4 “W” REM Wakes up our sensor with a “W”
INPUT #4 6000, H3531$ REM retrieve our measurements (6 sec timeout)
CLOSE #4
OPEN “RS-485” AS #3
PRINT #3 “0316” REM Send command to our sensor
INPUT #31000, var$ REM retrieve our measurements (6 sec timeout)
CLOSE #3
File communication:
OPEN “SiteID.csv” FOR WRITING AS #1
PRINT #1 “Digital2,AC-In” REM \r\n automatically added
var = 1
var2 = 256.25
var3 = 12.565
PRINT #1 var, “,”, var2, “,”; REM saves 1,256.25, \r\n not added
PRINT #1 var3 USING “##.##” REM saves12.57 followed by \r\n
PRINT #1 “Done” REM \r\n automatically added
CLOSE #1
PRINT