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Example In the following example, the BCD contents of the 8 words from DM 0000 to
DM 0007 are added when IR 00001 is ON and the result is written to DM 0010
and DM 0011.
@SUM(––)
DM 0000
#4008
00001
DM 0010
Address Instruction Operands
00000 LD 00001
00001 @SUM(––)
# 4008
DM 0000
DM 0010
DM 0000 0001
DM 0001 0002
DM 0002 0003
DM 0003 0004
DM 0004 0005
DM 0005 0006
DM 0006 0007
DM 0007 0008
DM 0010 0036
DM 0011 0000
5-21-5 ARITHMETIC PROCESS – APR(69)
C: Control word
IR, SR, AR, DM, HR, TC, LR, #
S: Input data source word
IR, SR, AR, DM, HR, TC, LR
Operand Data Areas
D: Result destination word
IR, SR, AR, DM, HR,TC, LR
Ladder Symbols
APR(69)
C
S
D
@APR(69)
C
S
D
Limitations For trigonometric functions S must be BCD from 0000 to 0900 (0°≤ q ≤ 90°).
Description When the execution condition is OFF, APR(69) is not executed. When the exe-
cution condition is ON, the operation of APR(69) depends on the control word C.
If C is #0000 or #0001, APR(69) computes sin(q) or cos(q)*. The BCD value of S
specifies q in tenths of degrees.
If C is an address, APR(69) computes f(x) of the function entered in advance be-
ginning at word C. The function is a series of line segments (which can approxi-
mate a curve) determined by the operator. The BCD or hexadecimal value of S
specifies x.
Flags ER: Indirectly addressed DM word is non-existent. (Content of :DM word is
not BCD, or the DM area boundary has been exceeded.)
For trigonometric functions, x > 0900. (x is the content of S.)
A constant other than #0000 or #0001 was designated for C.
The linear approximation data is not readable.
EQ: The result is 0000.
Special Math Instructions Section 5-21