Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 239

+(P)(_U) [when three operands are set]
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
These instructions add the two sets of 16-bit binary data specified.
Ladder
(s1) (s2) (d)
FBD/LD
EN ENO
s1 d
s2
( is to be replaced by any of the following: PLUS, PLUSP, PLUS_U, PLUSP_U.)
■Execution condition
Instruction
+
+_U
+P
+P_U
Setting data
■Description, range, data type
Operand Description
(s1) +(P) First addend data or the device where the first
addend data is stored
+(P)_U
(s2) +(P) Second addend data or the device where the
second addend data is stored
+(P)_U
(d) +(P) Device for storing the operation result
+(P)_U
EN Execution condition
ENO Execution result
• In safety programs executed by the Safety CPU, only safety devices and safety labels of data types described in the table
can be used.
■Applicable devices
Operand Bit
X, Y, M, L, J\
SM, F, B, SB,
FX, FY
(s1)  
 
(s2)
(d)  
• In safety programs executed by the Safety CPU, only the following safety devices and constants can be used.
Operand Bit
SA\X, SA\Y, SA\M, SA\SM, SA\B
(s1) 

(s2)
(d) 
RnSFCPU RnSFCPU
(Standard) (Safety)
Execution condition
Word
T, ST, C, D, W, U\G, J\,
SD, SW, FD, R, U3E\(H)G
ZR, RD
 
 
 
ST
ENO:=PLUS(EN,s1,s2,d);
ENO:=PLUSP(EN,s1,s2,d);
ENO:=PLUS_U(EN,s1,s2,d);
ENO:=PLUSP_U(EN,s1,s2,d);
Range Data type
-32768 to 32767 16-bit signed binary
0 to 65535 16-bit unsigned binary
-32768 to 32767 16-bit signed binary
0 to 65535 16-bit unsigned binary

16-bit signed binary
16-bit unsigned binary

Bit
 Bit
Double word Indirect
Z LT, LST, LZ
LC
  
  
  
Word
SA\T, SA\ST, SA\C, SA\D, SA\W, SA\SD



6.2 Arithmetic Operation Instructions
Data type (label)
ANY16_S
ANY16_U
ANY16_S
ANY16_U
ANY16_S
ANY16_U
BOOL
BOOL
Constant Others
specification
K, H E $
    
    
    
Constant
K, H



6 BASIC INSTRUCTIONS
6
237