273
Conversion Instructions Section 5-19
integer. If the results is less than 0000, then 0000 is written to R, and if the
result is greater than 9999, then 9999 is written to R.
The following table shows the functions and ranges of the parameter words:
The following diagram shows the source word, S, converted to D according to
the line defined by points (A
Y
, A
X
) and (B
Y
, B
X
).
The results can be calculated by first converting all values to BCD and then
using the following formula.
Results = B
Y
– [(B
Y
– A
Y
)/(B
X
– A
X
) X (B
X
– S)]
Flags ER: The value in P1+1 equals that in P1+3.
Indirectly addressed DM word is non-existent. (Content of *DM word
is not BCD, or the DM area boundary has been exceeded.)
P1 and P1+3 are not in the same data area, or other setting error.
EQ: ON when the result, R, is 0000.
Example When 00000 is turned ON in the following example, the BCD source data in
DM 0100 (#0100) is converted to hexadecimal according to the parameters in
DM 0150 to DM 0153. The result (#0512) is then written to DM 0200.
Parameter Function Range Comments
P1 BCD point #1 (A
Y
) 0000 to 9999 ---
P1+1 Hex. point #1 (A
X
) 0000 to FFFF Do not set P1+1=P1+3.
P1+2 BCD point #2 (B
Y
) 0000 to 9999 ---
P1+3 Hex. point #2 (B
X
) 0000 to FFFF Do not set P1+3=P1+1.
A
X
SB
X
Value after conversion
(BCD)
B
Y
R
Value before conversion
(Hexadecimal)
A
Y
@SCL(66)
DM 0150
DM 0100
00000
DM 0200
Address Instruction Operands
00000 LD 00000
00001 @SCL(66)
DM 0100
DM 0150
DM 0200
DM 0150 0010
DM 0151 0005
DM 0152 0050
DM 0153 0019
DM 0100 0100
DM 0200 0512
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