Sensaphone SCADA 3000 Users manual - Manual (Page 241)

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Chapter 22: Distributed Control using Visual Basic
Arguments
condition
Numeric or string expression that is True or False. If condition is Null, condition is
treated as False.
statements
One or more statements that are repeated while or until condition is True.
Operators
Symbols used to execute mathematical operations and determine whether a particular condition
exists.
+ Adds two values
- Subtracts two values
* Multiplies two values
/ Divides two values and returns a floating point result
\ Divides two values and provides an integer result
Mod Finds the remainder of a division
^
Raises a number to the power of an exponent
Or Checks if one condition or another exists
And Checks if one condition and another exists
ASSIGNMENT - Symbol used to assign a numeric value.
= assigns a new value to a variable
COMPARATORS -Symbols used to compare numeric values to each other
< Less than
> Greater than
= Is equal to
<> Is not equal to
<= Less than or equal to
>= Greater than or equal to
COMMENTS -Text used to add notes to a program. Typically used to briefly explain what the
program or statement is doing. They may be used freely to make a program easier to under-
stand. Comments are ignored by the program. A comment is identified by a single quote at the
beginning of the line.
' comment
mONTH, DAY, YeAR, HOURS, mINUTeS, SeCONDS, & WeeKDAY
These variables represent the values from the real-time clock in your PC. They do not have to
be declared in a Dim statement. The variable names are as follows: