Yaskawa MP2000 Series: User's Manual for Motion Programming - Manual (Page 235)

8 Command Reference
8.7.1 Data Comparison Commands (==, <>, >, <, >=, <=)
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8.7 Data Comparisons
This section explains the data comparison commands that are used for conditional expressions.
8.7.1 Data Comparison Commands (==, <>, >, <, >=, <=)
(1) Overview
These commands are used to determine conditional expressions for commands such as branching commands
(IF), repeat commands (WHILE), and I/O WAIT (IOW).
The following six comparison commands are provided.
(2) Format
(3) Programming Examples
Data comparison command programming examples are shown below.
Motion Programs Sequence Programs
Applicable Applicable
Comparison Command Meaning
= = Match
< > Mismatch
> Greater than
< Less than
> = Greater than or equal to
< = Less than or equal to
IF MB001000 == 1;
A
Item Description Usable Registers
A
Conditional
expression
• All bit type
*
, integer type, double integer type, and real number type registers
(Excluding # and C registers)
• The above registers with subscript
• Subscript registers
* Only the MATCH (= =) command can be used in a bit conditional expression.
Type
Motion Programs/
Sequence Programs
Ladder Programs
B IF MB001000==1;
W IF MW00100<>10;
L IF ML00100>10000;
F IF MF00100>=3.0;
EXAMPLE