Embedded PLC
Instruction Manual
157
Instructions
Description
DIV
Divide
Use the DIV instruction to divide one value (source A) by another (source B). The rounded
quotient is then placed in the destination. If the remainder is 0.5 or greater, round up occurs
in the destination. The unrounded quotient is stored in the most significant word of the math
register. The remainder is placed in the least significant word of the math register.
END
Program End
Marks the end of the program.
EOR
End of Rung
Marks the end of a rung.
EQU
Equal
Use the EQU instruction to test whether two values are equal. If source A and source B are
equal, the instruction is logically true. If these values are not equal, the instruction is logically
false.
GEQ
Greater than or Equal
Use the GEQ instruction to test whether one value (source A) is greater than or equal to
another (source B). If the value at source A is greater than or equal to the value at source B,
the instruction is logically true. If the value at source A is less than the value at source B, the
instruction is logically false.
GRT
Greater Than
Use the GRT instruction to test whether one value (source A) is greater than another (source B).
If the value at source A is greater than the value at source B, the instruction is logically true. If
the value at source A is less than or equal to the value at source B, the instruction is logically
false.
LEQ
Less Than or Equal
Use the LEQ instruction to test whether one value (source A) is less than or equal to another
(source B). If the value at source A is less than or equal to the value at source B, the instruction
is logically true. If the value at source A is greater than the value at source B, the instruction is
logically false.
LES
Less Than
Use the LES instruction to test whether one value (source A) is less than another (source B). If
source A is less than the value at source B, the instruction is logically true. If the value at source
A is greater than or equal to the value at source B, the instruction is logically false.
LIM
Limit Test
Use the LIM instruction to test for values within or outside a specified range, depending on
how limits are set.
If the Low Limit has a value equal to or less than the High Limit, the instruction is true when
the Test value is between the limits or is equal to either limit. If the Test value is outside the
limits, the instruction is false.
Содержание QB Expert
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