Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 239

Processing details
• These instructions add (n) point(s) of 16-bit binary data from the device specified by (s1) and the (n) point(s) of 16-bit binary
data from the device specified by (s2), and store the results of addition in the device specified by (d).
• Block addition is performed in units of 16-bits.
Ex.
If device is specified for (s2) (signed)
b15 ∙∙∙ b0
(s1)
1234 (BIN)
(s1)+1 4567 (BIN)
(s1)+2 -2000 (BIN)
(n)
(s1)+(n-2) -1234 (BIN)
(s1)+(n-1)
4000 (BIN)
If constant is specified for (s2) (signed)
b15 ∙∙∙ b0
(s1)
1234 (BIN)
(s1)+1
4567 (BIN)
(s1)+2
-2000 (BIN)
(n)
(s1)+(n-2) -1234 (BIN)
(s1)+(n-1)
4000 (BIN)
• If an underflow or overflow occurs for operation result, the result will be as follows. In this case, the carry flag (SM700) does
not turn ON.
If signed is specified
K32767 K2
+
(7FFFH) (0002H)
K-32767 K-2
+
(8001H) (FFFEH)
Operation error
Error code Description
(SD0/SD8067)
2820H The range of (n) point(s) of data starting from the device specified by (s1), (s2), or (d) exceed the corresponding device range.
2821H The device range for (n) point(s) beginning from (s1) overlaps with that of (n) point(s) starting from (d).
(Does not apply when same device has been specified for (s1) and (d).)
The device range for (n) point(s) beginning from (s2) overlaps with that of (n) point(s) starting from (d).
(Does not apply when same device has been specified for (s2) and (d).)
b15 ∙∙∙ b0
(s2)
4000 (BIN)
(s2)+1 1234 (BIN)
(s2)+2 -1234 (BIN)
(n)
+
(s2)+(n-2) 5000 (BIN)
(s2)+(n-1)
4321 (BIN)
b15 ∙∙∙ b0
(s2) 4321 (BIN)
+
If unsigned is specified
K-32767 K65535
+
(8001H) (FFFFH)
K32767
(7FFFH)
b15 ∙∙∙ b0
(d)
5234 (BIN)
(d)+1 5801 (BIN)
(d)+2 -3234 (BIN)
(d)+(n-2) 3766 (BIN)
(d)+(n-1)
8321 (BIN)
b15 ∙∙∙ b0
(d) 5555 (BIN)
(d)+1 8888 (BIN)
(d)+2
2321 (BIN)
(d)+(n-2) 3087 (BIN)
(d)+(n-1)
8321 (BIN)
K1 K0
(0001H) (0000H)
7.2 Arithmetic Operation Instructions
(n)
(n)
7 BASIC INSTRUCTIONS
7
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