Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 100

Real number instructions
■Comparing single-precision real numbers
Instruction symbol
LDE=, ANDE=, ORE=
LDE<>, ANDE<>, ORE<>
LDE>, ANDE>, ORE>
LDE<=, ANDE<=, ORE<=
LDE<, ANDE<, ORE<
LDE>=, ANDE>=, ORE>=
■Comparing double-precision real numbers
Instruction symbol
LDED=, ANDED=, ORED=
LDED<>, ANDED<>, ORED<>
LDED>, ANDED>, ORED>
LDED<=, ANDED<=, ORED<=
LDED<, ANDED<, ORED<
LDED>=, ANDED>=, ORED>=
■Outputting a comparison result of single-precision real numbers
Instruction symbol
ECMP
ECMPP
■Outputting a comparison result of double-precision real numbers
Instruction symbol
EDCMP
EDCMPP
■Outputting a band comparison result of single-precision real number
Instruction symbol
EZCP
EZCPP
■Outputting a band comparison result of double-precision real number
Instruction symbol
EDZCP
EDZCPP
■Adding/subtracting single-precision real numbers
Instruction symbol
E+
E+P
E+
E+P
E-
E-P
E-
E-P
2 CPU MODULE INSTRUCTIONS
98
2.3 Application Instructions
Processing details
Performs a comparison operation of a single-precision real number. (Devices are used as a
normally open contact.)
Processing details
Performs a comparison operation of a double-precision real number. (Devices are used as a
normally open contact.)
Processing details
Compares the single-precision real number data specified by (s1) with the single-precision real
number data specified by (s2), and according to the result (small, equal, or large), (d), (d)+1, or
(d)+2 is turned on.
Processing details
Compares the double-precision real number data specified by (s1) with the double-precision real
number data specified by (s2), and according to the result (small, equal, or large), (d), (d)+1, or
(d)+2 is turned on.
Processing details
Compares the band between the single-precision real number specified by lower limit value (s1)
and the single-precision real number specified by upper limit value (s2) with the single-precision
real number in the device specified by comparison data (s3). According to the comparison result
(below, within zone, or above), (d), (d)+1, or (d)+2 is turned on.
Processing details
Compares the band between the double-precision real number specified by lower limit value (s1)
and the double-precision real number specified by upper limit value (s2) with the double-precision
real number in the device specified by comparison data (s3). According to the comparison result
(below, within zone, or above), (d), (d)+1, or (d)+2 is turned on.
Processing details
Adds single-precision real numbers. (Using two operands)
Adds single-precision real numbers. (Using three operands)
Performs subtraction between single-precision real numbers. (Using two operands)
Performs subtraction between single-precision real numbers. (Using three operands)
Reference
Page 704 LDE,
ANDE, ORE
Reference
Page 706 LDED,
ANDED, ORED
Reference
Page 709 ECMP(P)
Reference
Page 711 EDCMP(P)
Reference
Page 713 EZCP(P)
Reference
Page 715 EDZCP(P)
Reference
Page 717 E+(P) [when
two operands are set]
Page 719 E+(P) [when
three operands are set]
Page 721 E-(P) [when
two operands are set]
Page 723 E-(P) [when
three operands are set]