305
Conversion Instructions Section 5-20
If the parity of the ASCII code in S does not agree with the parity specified in
Di, the ER Flag (SR 25503) will be turned ON and the instruction will not be
executed.
Flags ER: Incorrect digit designator, or data area for destination exceeded.
Indirectly addressed EM/DM word is non-existent.
(Content of *EM/*DM word is not BCD, or the EM/DM area boundary
has been exceeded.)
Example In the following example, the 2nd byte of LR 10 and the 1st byte of LR 11 are
converted to hexadecimal values and those values are written to the first and
second bytes of IR 010.
5-20-10 SCALING – SCL(66)
Limitations P1 through P1+3 must be in the same data area.
DM 6144 to DM 6655 cannot be used for P1 through P1+3 or R.
Description SCL(66) is used to linearly convert a 4-digit hexadecimal value to a 4-digit
BCD value. Unlike BCD(24), which converts a 4-digit hexadecimal value to its
4-digit BCD equivalent (S
hex
→ S
BCD
), SCL(66) can convert the hexadecimal
value according to a specified linear relationship. The conversion line is
defined by two points specified in the parameter words P1 to P1+3.
When the execution condition is OFF, SCL(66) is not executed. When the exe-
cution condition is ON, SCL(66) converts the 4-digit hexadecimal value in S to
the 4-digit BCD value on the line defined by points (P1, P1+1) and (P1+2,
P1+3), and places the results in R. The results is rounded off to the nearest
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.
@HEX(−−)
HR 10
LR 10
00000
010
Address Instruction Operands
00000 LD 00000
00001 @HEX(−− )
LR 10
HR 10
010
3 1 3 0LR 104 2 3 2
Conversion to
hexadecimal
LR 11
0 0 2 1010
3 5 3 4LR 12
0 1 1 0HR 10
S: Source word
IR, SR, AR, DM, EM, HR, TIM/CNT, LR, #
Ladder Symbols Operand Data Areas
@SCL(66)
S
P1
R
R: Result word
IR, SR, AR, DM, EM, HR, LR
P1: First parameter word
IR, SR, AR, DM, EM, HR, TIM/CNT, LR
SCL(66)
S
P1
R
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