Elmomc Multi-Axis Motion Controller-Maestro Manual de usuario descargar pdf (Pagina 89)

otherwise

TRACE (“Error attribute ”)

end switch

The preceding code fragment shows how switch statements can be nested.

The switch statement that selects on the value of

cmdName is executed only if attribute is

1. The case labels for menu selections, 1 (BG) and 2 (MO=1), associate with the inner

switch statement.

5.5.3 Iteration Statements

Iteration statements cause statements (or compound statements) to be executed zero

or more times, subject to some loop-termination criteria. When these statements are

compound statements, they are executed in order, except when either the break

statement or the continue statement is encountered. For a description of these

statements, see The break Statement

and The continue Statement sections.

MAXL provides two iteration statements — while and for. Each of these iterates until

its termination expression evaluates to zero (false), or until loop termination is forced

with a break statement.

Syntax

iteration-statement :

while ( expression ) statements end while

for identifier-variable=expression : [step- expression :] terminate-expression

statements

end for

5.5.3.1

Maestro

Software Manual MAXL Program Language

MAN-MASSW (Ver. Q)

The MAXL while Statement

The while statement executes a statement repeatedly until the termination condition

(the expression) specified evaluates to zero.

The test of the termination condition takes place before each execution of the loop;

therefore, a while loop executes zero or more times, depending on the value of the

termination expression.

Syntax

while ( expression ) statements end while

Example:

while( attribute < 56)

attrbute=attribute+17

TRACE(“Attribute : %”, attribute)

end while

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Elmomc Multi-Axis Motion Controller-Maestro Manual de usuario Pagina 89