Inovance H3U Series - Page 96

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4
4 Instructions 4.3.1 Contact Comparison
ANDZ#: Absolute value comparison AND contact
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Overview
The ANDZ# instruction compares the absolute value of the S1 and S2 subtraction result with the absolute
value in S3 and uses the comparison result to determine whether to set a contact to ON or OFF (a node
connected to another node in series).
ANDZ# S1 S2 S3
Absolute value comparison
AND contact
Applicable model:
H3U
S1 Subtrahend Source element of the subtrahend
16-bit instruction (5
steps)
ANDZ#: Continuous
execution
32-bit instruction (9
steps)
ANDDZ#:
Continuous
execution
S2 Minuend Source element of the minuend
S3
Comparative
value
Source element of the comparative value
Note: The # comparison operator can be =, >, <, <>, <=, or >=.
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Operands
Operand
Bit Element Word Element
System·User System·User Bit Designation Indexed Address Constant
Real
Number
S1 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
S2 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
S3 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
Note: The elements in gray background are supported.
◆
Function
The absolute value of the [S1] and [S2] subtraction result is compared with the absolute value in [S3]. The
instruction is enabled when conditions are met; otherwise, it is disabled.
16-bit Instruction 32-bit Instruction Enabled State
Condition
Disabled State
Condition
ANDZ> ANDDZ> |S1 – S2| > |S3| |S1 – S2| <= |S3|
ANDZ>= ANDDZ>= |S1 – S2| >= |S3| |S1 – S2| < |S3|
ANDZ< ANDDZ< |S1 – S2| < |S3| |S1 – S2| >= |S3|
ANDZ<= ANDDZ<= |S1 – S2| <= |S3| |S1 – S2| > |S3|
ANDZ= ANDDZ= |S1 – S2| = |S3| |S1 – S2| <> |S3|
ANDZ<> ANDDZ<> |S1 – S2| <> |S3| |S1 – S2| = |S3|
◆
Application