Omron CJ1G-CPUxx, Instructions Manual

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Conversion Instructions Section 3-12
Description SIGN(600) converts the 16-bit signed binary number in S to its 32-bit signed
binary equivalent and writes the result in R+1 and R.
The conversion is accomplished by copying the content of S to R and writing
FFFF to R+1 if bit 15 of S is 1 or writing 0000 to R+1 if bit 15 of S is 0.
Flags
Example When CIO 000000 is ON in the following example, SIGN(600) converts the
16-bit signed binary content of D00100 (#8000 = –32,768 decimal) to its 32-
bit equivalent (#FFFF 8000 = –32,768 decimal) and writes that result to
D00201 and D00200.
3-12-8 DATA DECODER: MLPX(076)
Purpose Reads the numerical value in the specified digit (or byte) in the source word,
turns ON the corresponding bit in the result word (or 16-word range), and
turns OFF all other bits in the result word (or 16-word range).
Ladder Symbol
Variations
Source word (S)
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
The content of S is
transferred "as is" to R.
1
st
result word (R)
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2
nd
result word (R+1)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
If bit 15 of S is 1, FFFF is transferred to R+1.
If bit 15 of S is 0, 0000 is transferred to R+1.
Name Label Operation
Error Flag ER OFF
Equals Flag = ON if the result is 0000 0000.
OFF in all other cases.
Negative Flag N ON if bit 15 of R+1 is ON.
OFF in all other cases.
Example: 8000 Hex
S: Source word
C: Control word
R: First result word
MLPX(076)
S
C
R
Variations Executed Each Cycle for ON Condition MLPX(076)
Executed Once for Upward Differentiation @MLPX(076)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported