Omron CS1G/H-CPUxxH Instructions Manual page 635

Double-precision Floating-point Instructions (CS1-H, CJ1-H, CJ1M, or CS1D Only)
Precautions
3-16-21 Double-precision Floating-point Input Instructions
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
614
Name
Underflow Flag UF
Negative Flag N
The base data (B to B+3) and the exponent data (E to E+3) must be in
IEEE754 floating-point data format.
These input comparison instructions compare two double-precision floating
point values (64-bit IEEE754 format) and create an ON execution condition
when the comparison condition is true.
These instructions are supported by the CS1-H, CJ1-H, CJ1M, and CS1D
CPU Units only.
Note Refer to 3-7-1 Input Comparison Instructions (300 to 328) for details on the
signed and unsigned binary input comparison instructions and 3-15-21 Sin-
gle-precision Floating-point Comparison Instructions for details on single-pre-
cision floating-point input comparison instructions.
Symbol & options
Variations Creates ON Each Cycle Comparison is True
Immediate Refreshing Specification
Block program areas
OK
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in binary
Label
ON if the absolute value of the result is too small to be
expressed as a double-precision floating-point value.
ON if the result is negative.
OFF in all other cases.
S : Comparison data 1
S
1
1
S : Comparison data 2
S
2 2
Step program areas
OK
S
1
CIO 0000 to CIO 6140
W000 to W508
H000 to H508
A000 to A956
T0000 to T4092
C0000 to C4092
D00000 to D32764
E00000 to E32764
En_00000 to En_32767 (n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Section 3-16
Operation
Input compari-
son instruction
Not supported
Subroutines Interrupt tasks
OK OK
S
2