641
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
25 Block Data Operation – FNC190 to FNC199
25.3 FNC194~199 – BKCMP=, >, <, < >, <=, >= / Block Data Compare
21
FNC160-FNC169
Real Time Clock
Control
22
FNC170-FNC179
External Device
23
FNC180
Alternate
Instructions
24
FNC181-FNC189
Others
25
FNC190-FNC199
Block Data
Operation
26
FNC200-FNC209
Character String
Control
27
FNC210-FNC219
Data
Operation 3
28
FNC220-FNC249
Data
Comparison
29
FNC250-FNC269
Data Table
Operation
30
FNC270-FNC274
Ex-Device
Inverter Comms
Program example
1) In the program shown below, four 16-bit binary data starting from D100 are compared with four 16-bit
binary data starting from D200 by BKCMP= (FNC194) instruction when X020 is set to ON, and the
comparison result is stored in four points starting from M10.
When the comparison result is "ON (1)" in all of the four points starting from M10, Y000 is set to ON.
2) In the program shown below, the constant K1000 is compared with four data starting from D10 when
X010 is set to ON, and the comparison result is stored in b4 to b7 of D0.
D100
Comparison
result
=
K1000
K2000
K4000
K3000
D101
D102
D103
OFFY000
D200
K1000
K2000
K4000
K5000
D201
D202
D203
M10
ON
ON
ON
OFF
M11
M12
M13
X020
FNC194
BKCMP=
D100 D200 M10
END
K4
Y000
M8090
Block comparison signal
(When all of M10 to M13 are ON, Y000 is set to ON.)
<>K1000
K2000
K1000
K2222
K1000
X010
FNC197
BKCMP<>
K1000 D10 D0.4
END
K4
D10
D11
D12
D13
b15
b7 b4 b0
D0 before
operation
0000010001000010
b15 b7 b4 b0
D0 after
operation
0000100101000010
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