Yaskawa SMC–4000 - Manual (Page 133)

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SMC–4000 User Manual
IF
[Program Flow]
DESCRIPTION:
The IF command is used in conjunction with an ENDIF command to form an IF conditional statement. The
arguments are one or more conditional statements. If the conditional statement(s) evaluates true, the
command interpreter will continue executing commands which follow the IF command. If the conditional
statement evaluates false, the controller will ignore commands until the associated ENDIF command OR
an
ELSE command occurs in the program. The conditional statements MUST be enclosed on parentheses
for the expression to be evaluated correctly. See the example below.
ARGUMENTS: IF condition where
Conditions are tested with the following logical operators:
USAGE:
RELATED COMMANDS:
ELSE Optional command used only after IF command
ENDIF End of IF conditional Statement
EXAMPLES:
< less than >= greater than or equal to
> greater than <> not equal
= equal to | logical OR (pipe symbol)
<= less than or equal to & logical AND
While Moving Yes Default Value ---
In a Program Yes Default Format ---
Command Line No
IF (_TEX<1000) IF conditional statement based on X motor position
MG "Motor within 1000 counts of zero" Message to be executed if “IF” conditional
statement
ENDIF End of IF conditional statement
IF ((TEMP=126) | (TEMP=123))
JS # RELEASE
JS # ASSIGN
JS # CONNECT
ENDIF