17.2 Definitions

(1) Declarative Statements

Declarative statements are used to define the operation expression. There are three types of declarative statements; substitution sentence, command sentence and expression statements.

Type	Format
Substitution Sentence	Variable = Formula
Command Sentence	Subroutine
Expression Statement	; All sentences after semicolon ‘;’

(2) Formula

CIMON-SCADA provides various types and formats of the formula such as constants, variables, functions etc. The formula and the operator are usually used as <Formula><Operator><Formula> format. Here, the <Operator> excludes only ‘=’.

Type	Description
Constant	Includes integer, real number, string and internal constant.
Integer [Sign][Digit]Numeral	Sign	+, - (Omitted sign represents +.)
	Numeral	0 1 2 3 4 5 6 7 8 9 A B C D E F
	Digit	Assign as 2#(Binary), 8#(Octal), 16#(Hexadecimal) format. Omitted digit represents decimal.
Real Number Mantissa[Exponent]	Mantissa Part	Assign as shown below. [Sign][Numbers].Numbers [Sign]Numbers.[Numbers] [Sign]Numbers
	Exponent Part	Assign as shown below. E[Sign]Numbers e[Sign]Numbers
String	Assign as shown below. “ASCII Codes”
Internal Constant	There are 2 predefined internal constants in CIMON-SCADA as shown below. CONSTANT_P1: (3.1415...) CONSTANT_EXP: e (2.7183…)
Variable	Tag		The tag name defined in the database.
	Tag Variable		The variable/constant related to the tags defined in the database.
	Internal variable		The internal variable defined in the UltimateAccess Web.
Function	Function		A function for the arithmetic operation.
	Subroutine		An internal command function of UltimateAccess Web.
Operator	Followings are the operators provided by UltimateAccess Web. =, ~, !, +, -, *, /, %, \|, ^, &&, <<, >>, \|\|, <, >, <=, >=, ==, !=