Comparison operations
(continued)
Q 3.1
L
I B21
L DW3
> < F
= Q 3.1
IB21
DW3
V1
V2
> <
F
Q Q 3.1
IB21
DW3
V1
V2
> <
F
Q
RLO = "0": comparison is not satisfied if ACCU-1-L
equals ACCU-2-L.
The condition codes CC1 and CC0 are set as described
at the beginning of Section 3.5.
ACCU-2-H and ACCU-1-H are not involved in the operation
for a 16-bit fixed point comparison.
This information also applies to comparison operations for
"greater than", "greater than or equal to", "less than" and
"less than or equal to" (see the operations list). During the
The first operand is compared with the second operand
by the comparison operation.
The RLO of the comparison is binary.
Q 3.1
V1 V2
IB21 DW3
=/
=/
ACCU-2-H and ACCU-1-H are involved in a 32-bit fixed
point comparison and floating point comparison.
RLO = "1": comparison is satisfied if ACCU-1-L is not
equal to ACCU-2-L.
Logical/circuit diagram
STEP 5 representation
Ladder Control system
Statement
list
Compare for not equal to
diagram flowchart
comparison, the numerical representation of the operands
is taken into account, i.e. the contents of ACCU-1-L and
ACCU-2-L are interpreted here as a fixed point number.
Programming Examples in the STL, LAD and CSF Methods of Representation
CPU 948 Programming Guide
3 - 48 C79000-G8576-C848-04
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