Mitsubishi Electric MELDAS C6 Programming Manual page 172

(2) -32768 to 32767 (BIN 16-bit) can be designated in S1, S2 and S.
(3) The positive/negative of the data in S1, S2, S and D is determined with the highest-order bit
(B15).
B15
positive/negative
0
1
(4) The carry flag will not turn ON if the 15th bit overflows.
Execution conditions
The execution conditions for +, +P are as shown below.
Addition command OFF
+
+P
Program example
(1) Program to add the D0 BIN data and D10 BIN data and output to D20.
M0
10
(ON)
8. Function Commands
+, +P
Judgment of
Positive
Negative
ON
Executed per scan
D10
+ D0
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Executed per scan
Coding
No. of Com-
steps mand
D20
10 LD
11 +
15
Device
M0
D0 D10 D20