Mitsubishi Electric MELSEC FX3U Programming Manual page 637

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
2. 32-bit operation (DBK- and DBK-P)
Command
input
FNC193
DBK-P
1) "2n" 32-bit binary data starting from [
from [ +1,
S
1
[
S
1
[ +3,
S
1
[ +5,
S
1
[ +2n-3,
S
1
[ +2n-1,
S
1
2) A (32-bit) constant from -2,147,483,648 to +2,147,483,647 can be directly specified in [
[
S
1
[ +3,
S
1
[ +5,
S
1
[ +2n-3,
S
1
[ +2n-1,
S
1
Related instruction
Instruction
BK+ (FNC192)
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
K-32768(H8000)
K32767(H7FFF)
- In the case of 32-bit operation
K-2,147,483,648(H80000000)
K2,147,483,647(H7FFFFFFF)
• 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].
S S D
1 2
S
2
], and the operation result is stored in "2n" points starting from [
S
1
b31 b0
+1, ] K8765
S
1
+2] K8888
S
1
+4]
K9325
"n"
S
1
points
+2n-4]
K50000
S
1
+2n-2]
K4352
S
1
b31 b0
+1, ]
K8765
S
1
+2]
K8888
S
1
+4]
K9325
S "n"
1
points
+2n-4]
K50000
S
1
+2n-2]
K4352
S
1
Adds binary block data.
– K2(H0002)
– K-2(HFFFE)
–
–
25 Block Data Operation – FNC190 to FNC199
25.2 NFC193 – BK– / Block Data Subtraction
n
+1, ] are subtracted from "2n" 32-bit binary data starting
S
2
b31
[ +1, ]
S S
2 2
[ +3, +2]
S S
2 2
[ +5, +4]
S S
−
2 2
[ +2n-3, +2n-4]
S S
2 2
[ +2n-1, +2n-2]
S S
2 2
[
D
[
D
−
[ +1, ] K8880
S S
2 2
[
D
[
D
Description
→
K32766(H7FFE)
→
K-32767(H8001)
→
K2(H00000002) K2,147,483,646(H7FFFFFFE)
→
K-2(HFFFFFFFE) K-2,147,483,647(H80000001)
+1,
D
b0
K1234
K5678
K9876
"n"
points
K4321
K4000
b31 b0
[ +1, ] K7531
D D
[ +3, +2] K3210
D D
[ +5, +4]
K-551
D D
+2n-3, +2n-4]
K45679
D
+2n-1, +2n-2]
K352
D
+1,
S
2
b31 b0
[ +1, ]
K-115
D D
[ +3, +2]
K8
D D
[ +5, +4]
K445
D D
+2n-3, +2n-4]
K41120
D
+2n-1, +2n-2]
K-4528
D
21
22
].
D
23
24
"n"
points
25
].
S
2
26
"n"
points
27
28
29
30
635