Bcd 4-Digit Addition And Subtraction Operations (B+(P),B-(P)) - Mitsubishi MELSEC Q Series Programming Manual

B+(P),B-(P)
6.2.5

BCD 4-digit addition and subtraction operations (B+(P),B-(P))

B+(P),B-(P)
B+(P), B-(P)
When two data are set (
B+, B
B+P, B P
Setting
Data
S
D
Function
B+
(1) Adds the BCD 4-digit data designated by
stores the result of the addition at the device designated by
(2) 0 to 9999 (BCD 4 digits) can be assigned to
(3) If the result of the addition operation exceeds 9999, the higher bits are ignored.
The carry flag in this case does not go ON.
B-
(1) Subtracts the BCD 4-digit data designated by
and stores the result of the subtraction at the device designated by
(2) 0 to 9999 (BCD 4 digits) can be assigned to
6-34
+ ,
D S D D
Command
Command
: Data for adding/subtracting or head number of the devices where the data for adding/subtracting is stored
S
(BCD 4 digits)
: Head number of the devices where the data to be added to/subtracted from is stored (BCD 4 digits)
D
Internal Devices
R, ZR
Bit Word
D
5 6 7 8 1
6 4 3 2 3
D
0 6 7 8 0
High
Basic
performance
- )
S D
indicates an instruction symbol of
S
P S
J \
U \G
Bit Word
and the BCD 4-digit data designated by
D
.
D
S D
2 3 4 6 9
and .
S D
5 8 3 0 0
and the BCD 4-digit data designated by
S
D
S
2 3 4 0 4
Digits exceeding the designated
number of digits are assumed to be 0.
and .
S D
Process
Redundant Universal LCPU
B+/B .
D
D
Constants
Zn Other
K, H
––
–– ––
, and
S
1 2
1 5
D
.
D
4 4
,