Hitachi HIDIC MICRO-EH Applications Manual page 97

Item number Arithmetic instructions-2
Ladder format
d = s1 + s2
Instruction format
d = s1 + s2
Usable I/O
d Substitution destination
s1 Augend
s2 Addend
Function
•
Adds s1 and s2 as the binary data, and substitutes the result into d as the binary data.
•
The C flag is set to "0" if the operation result is within the range of H0000 to HFFFF for word and H00000000 to
HFFFFFFFF for double word. Otherwise, It is set to "1."
C = s1m s2m + s1m dm + s2m dm
•
The V flag is set to "1" if the operation result is meaningless as signed binary data, and "0" if it is meaningful.
s1 s2
Positive Positive
Positive Positive
Positive Negative
Negative Positive
Negative Negative
Negative Negative
Notes
•
The combinations of d, s1 and s2 are as follows:
d
Word
Double word Double word
Program example
X00000 DIF0
Program description
•
The sum of WR0000 and WR0001values is substituted into WR0002 at the leading edge of input X00000.
Name
Condition code
R7F4 R7F3 R7F2
DER ERR SD
Number of steps
Condition
Word
Double word
Bit
R, TD, SS,
X Y M CU, CT WX WY
d V
Positive 0
Negative 1
Positive/Negative 0
Negative/Positive 0
Positive 1
Negative 0
s1 s2
Word Word
Double word
WR0002 = WR0000 + WR0001
5-47
Chapter 5 Instruction Specifications
Binary addition (BINARY ADDITION)
Processing time (µs)
R7F1 R7F0
Average Maximum
V C
45
↕ ↕
Steps
4 61
6
Word Double word
WR, DR,
WM TC DX DY DM
Most significant bit
s1m
s2m
+
dm
C
V = s1m s2m dm + s1m s2m dm
LD
AND DIF0
[
WR0002 = WR0000 + WR0001
]
Remark
Upper case: W

Lower case: DW

Other
0
s1
0
s2
0 d
X00000