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MotionSuite™ Series Machine Controller Programming Manual Chapter 3: Advanced Programming Methods

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3.1.9 Branch (IF ELSE IEND) Command

! Outline

The Branch (IF ELSE IEND) command executes the block between [IF~ELSE] if a

conditional expression is valid; and the block between [ELSE~IEND] if a conditional

expression is invalid.

! Detailed Explanation

The Branch (IF ELSE IEND) command method is shown as follows:

According to the above command, execute Process 1 if the conditional expression is

valid; and Process 2 if the conditional expression is invalid.

• The ELSE can be omitted. At this point, if the conditional expression is invalid, the

execution is continued from the next block followed by the IEND.

Important Point

The Branch (IF ELSE IEND) command can be nested up to 8 levels.

IF (Conditional expression)

... (Process 1)

ELSE;

... (Process 2)

IEND;

Process 2Process 1

Conditional

Expression

Valid

Invalid

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