Mitsubishi MELSEC iQ-F FX5 series Programming Manual page 165

ADD(P)(_U)
These instructions add the 16-bit binary data in the device specified by (s1) and the 16-bit binary data in the device specified
by (s2), and store the result in the device specified by (d).
Ladder diagram
(s1) (s2) (d)
*1 The ADD instruction is not supported by the ST language. Use ADD of the standard function.
Page 777 ADD(_E)
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) ADD(P) Addend data or the device where the data that
is added to another is stored
ADD(P)_U
(s2) ADD(P) Addend data or the device where the data that
is added to another is stored
ADD(P)_U
(d) ADD(P) Device for storing the operation result
ADD(P)_U
■Applicable devices
Operand Bit
X, Y, M, L, U\G T, ST,
SM, F, B, SB
 
(s1)
 
(s2)
 
(d)
Processing details
• These instructions add the 16-bit binary data in the device specified by (s1) and the 16-bit binary data in the device
specified by (s2), and store the addition result in the device specified by (d).
(s1)
b15 ··· b0 b15
5678 (BIN) + 1234 (BIN)
■Relationship between the flag operation and the sign (positive or negative) of a numeric value
Device Name
SM700, SM8022 Carry
SM8020 Zero
SM8021 Borrow
Zero Flag
-2, -1, 0, -32768
Borrow flag
The most significant
bit of data becomes "1".
Word
T, ST, C, D,
C, LC W, SD, SW, R
 
 
 
(s2) (d)
··· b0 b15 ···
6912 (BIN)
Description
When the operation result exceeds the upper limit of the data setting range, the carry flag is turned ON.
When the operation result is 0, the zero flag is turned ON.
When the operation result is less than the lower limit of the data setting range, the borrow flag is turned ON.
Zero Flag
-1, 0, 1
The most significant
bit of data becomes "0".
*1
Structured text
ENO:=ADDP(EN,s1,s2,d);
Range
-32768 to +32767
0 to 65535
-32768 to +32767
0 to 65535


Double word Indirect
U\G Z LC LZ
   
   
   
b0
Zero Flag
32767, 0, 1, 2
Carry flag
ENO:=ADD_U(EN,s1,s2,d);
ENO:=ADDP_U(EN,s1,s2,d);
Data type Data type (label)
16-bit signed binary ANY16_S
16-bit unsigned binary ANY16_U
16-bit signed binary ANY16_S
16-bit unsigned binary ANY16_U
16-bit signed binary ANY16_S
16-bit unsigned binary ANY16_U
Constant
specification
K, H E $
   
   
   
6 BASIC INSTRUCTIONS
6.2 Arithmetic Operation Instructions
6
Others
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