Table of Contents
Advertisement
Bitwise Boolean instructions
F67_XOR
Executes exclusive OR operation of each bit in 16-bit equivalent constant or 16-bit data specified
Description
by s1 and s2 if the trigger EN is in the ON-state. The exclusive OR operation result is stored in the
16-bit area specified by d. When 16-bit equivalent constant is specified by s1 or s2, the exclusive
OR operation is performed internally converting it to 16-bit binary expression. You can use this
instruction to review the number of identical bits in the two 16-bit data.
Bit position
s1
Bit position
s2
Bit position
d
This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which
is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the
"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears
under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming
area to open the list of recently used elements.
Availability of F67_XOR (see page 1326)
PLC types
Data types
Variable
Data type
s1, s2
ANY16
d
The variables s1, s2 and d have to be of the same data type.
Operands
For
s1, s2
d
In this example, the same POU header is used for all programming languages. For an example
Example
using IL (instruction list), please refer to the online help.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
522
16-bit data exclusive OR
· · ·
· ·
·
·
15
12
11
8
7
0 1 0
0
1 1 0
1
1 0 1
· · ·
· ·
·
·
15
12
11
8
7
0 0 0
0
0 0 0
0
1 1 1
start: ON
· · ·
· ·
·
·
15
12
11
8
7
0 1 0
0
1 1 0
1
0 1 0
Function
16-bit area or 16-bit equivalent constant to be compared
16-bit area for storing XOR operation result
Relay
WX
WY
WR
WL
-
WY
WR
WL
· ·
4
3
0
1
1 0 0
1
· ·
4
3
0
1
1 1 1
1
· ·
4
3
0
0
0 1 1
0
T/C
Register
SV
EV
DT
LD
FL
SV
EV
DT
LD
FL
Constant
dec. or hex.
-
Advertisement
Table of Contents
