Mitsubishi MELSEC QCPU User Manual

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MELSEC-Q/QnA
6 BASIC INSTRUCTIONS
High Performance
QnA Q4AR
Basic
QCPU
PLC CPU
Process CPU
6.2.5 BCD 4-digit addition and subtraction operations (B+, B+P, B-, B-P)
Usable Devices
Internal Devices
(System, User)
MELSECNET/10(H)
Direct J
\
Set
Data
Bit Word
File
Register
Bit Word
Special
Function
Module
U
\G
Index
Register
Zn
Constant
K, H
Other
S
D
[Instruction Symbol] [Execution Condition]
indicates the signs B+ or B-
Command
Command
P
B+, B -
B+P, B - P
S D
S D
[Set Data]
Set Data Meaning Data Type
S
Addition or subtraction data, or head number of device storing addition or
subtraction data
D
Data to be added to or subtracted from, or head number of device storing
such data
BCD 4-digit
[Functions]
B
+
(1) Adds the BCD 4-digit data designated by
D
and the BCD 4-digit data designated by
S
, and
stores the result of the addition at the device designated by
D
.
+6578 2134 9612
D S D
(2) The values for
S
and
D
can be between 0 to 9999 (BCD 4-digit).
(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.
+4632 00155383
B
-
(1) Subtracts the BCD 4-digit data designated by
D
and the BCD 4-digit data designated by
S
,
and stores the result of the subtraction at the device designated by
D
.
Digits higher than those which were designated
will be read as 0.
404420346078
D D
S2
-
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Mitsubishi MELSEC QCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC QCPU
Category	Controller
Language	English