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6-8
ED=,ED<>,ED>,ED<=,ED<,ED>=
6.1.4 Floating decimal point data comparisons (Double precision)
(ED=,ED<>,ED>,ED<=,ED<,ED>=)
ED=,ED<>,ED>,ED<=,ED<,ED>=
Function
(1) The 64-bit floating decimal point real number from device designated by and 64-bit floating
decimal point real number from device designated by as A normally-open contact, and
performs comparison operation.
(2) The results of the comparison operations for the individual instructions are as follows:
, : Data for comparison or head number of the devices where the data for comparison is stored
(real number)
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
$
Other
Bit Word Bit Word
–– –– –– ––
–– –– –– ––
Instruction
Symbol in
Condition
Comparison
Operation Result
Instruction
Symbol in
Condition
Comparison
Operation Result
ED=
=
Continuity
ED=
Non-continuity
ED<>
ED<>
=
ED>
>
ED>
ED<=
ED<=
>
ED<
<
ED<
ED>=
ED>=
<
Universal
Basic
Process
High
performance
Redundant
LD
AND
OR
S1
S
1 S2
S
1S2
S2
Command
Command
Command
/ED /ED /E /E /E
indicates an instruction symbol of ED
S1 S2
S1
S2
S1
S2
S2 S1 S1 S2
S1 S2 S2 S1
S1 S2 S1 S2
S1 S2 S1 S2
S1 S2 S1 S2
S1 S2 S1 S2