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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
25 Block Data Operation – FNC190 to FNC199
25.2 NFC193 – BK– / Block Data Subtraction
2. 32-bit operation (DBK- and DBK-P)
1) "2n" 32-bit binary data starting from [ +1, ] are subtracted from "2n" 32-bit binary data starting from
[ +1, ], and the operation result is stored in "2n" points starting from [ +1, ].
2) A (32-bit) constant from -2,147,483,648 to +2,147,483,647 can be directly specified in [ +1, ].
Related instruction
Caution
• When underflow or overflow occurs in the operation result, the following processing is executed. At this time, the
carry flag does not turn ON.
- In the case of 16-bit operation
- In the case of 32-bit operation
• Note that the 32-bit value [n+1, n] is valid when D or R is specified as "n" in a 32-bit instruction.
In the case of "DBK - D0 D100 D200 R0", "n" is [R1, R0].
Instruction Description
BK+ (FNC192) Adds binary block data.
K-32768(H8000) – K2(H0002) → K32766(H7FFE)
K32767(H7FFF) – K-2(HFFFE) → K-32767(H8001)
K-2,147,483,648(H80000000) – K2(H00000002) → K2,147,483,646(H7FFFFFFE)
K2,147,483,647(H7FFFFFFF) – K-2(HFFFFFFFE) → K-2,147,483,647(H80000001)
Command
input
FNC193
DBK-P
S
1
S
2
nD
S
2
S
2
S
1
S
1
D
D
[ +1, ]
b31 b0
"n"
points
−
K8765
K8888
K50000
K9325
K4352
[ +3, +2]
[ +5, +4]
[ +2n-3, +2n-4]
[ +2n-1, +2n-2]
[ +1, ]
b31 b0
"n"
points
K1234
K5678
K4321
K9876
K4000
[ +3, +2]
[ +5, +4]
[ +2n-3, +2n-4]
[ +2n-1, +2n-2]
S
2
[ +1, ]
b31 b0
"n"
points
K7531
K3210
K45679
K-551
K352
[ +3, +2]
[ +5, +4]
[ +2n-3, +2n-4]
[ +2n-1, +2n-2]
D
D
D
D
D
D
D
D
D
D
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
2
S
2
S
2
S
2
S
2
S
2
S
2
S
2
S
2
S
2
S
2
[ +1, ]
b31 b0
"n"
points
−
K8765
K8888
K50000
K9325
K4352
[ +3, +2]
[ +5, +4]
[ +2n-3, +2n-4]
[ +2n-1, +2n-2]
[ +1, ]
S
2
[ +1, ]
b31 b0
"n"
points
K-115
K8
K41120
K445
K-4528
[ +3, +2]
[ +5, +4]
[ +2n-3, +2n-4]
[ +2n-1, +2n-2]
D
D
D
D
D
D
D
D
D
D
K8880
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
2