Omron CPM1 Programming Manual

313
Special Math Instructions Section 5-22
5-22-5 ARITHMETIC PROCESS – APR(––)
Limitations This instruction is available in the CQM1 only.
For trigonometric functions S must be BCD from 0000 to 0900 (0°≤ θ ≤ 90°).
DM 6144 to DM 6655 cannot be used for D.
Description When the execution condition is OFF, APR(––) is not executed. When the exe-
cution condition is ON, the operation of APR(––) depends on the control word
C.
If C is #0000 or #0001, APR(––) computes sin(
θ) or cos(θ)*. The BCD value of
S specifies
θ in tenths of degrees.
If C is an address, APR(––) computes f(x) of the function entered in advance
beginning at word C. The function is a series of line segments (which can
approximate 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.
Examples
Sine Function The following example demonstrates the use of the APR(––) sine function to
calculate the sine of 30
°. The sine function is specified when C is #0000.
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(––)
C
S
D
@APR(––)
C
S
D
APR(––)
#0000
DM 0000
DM 0100
00000
Enter input data not exceed-
ing #0900 in BCD.
Result data has four significant
digits, fifth and higher digits are
ignored. The result for sin(90) will
be 0.9999, not 1.
Input data, x Result data
S: DM 0000 D: DM 0100
010
1
10
0
10
–1
10
–1
10
–2
10
–3
10
–4
0300 5 0 0 0
Address Instruction Operands
00000 LD 00000
00001 APR(––)
# 0000
DM 0000
DM 0100

Omron CPM1 Specifications

General

Model	CPM1
Manufacturer	Omron
Instruction Set	Basic and advanced instructions
Power Supply	100 to 240 VAC or 24 VDC
Communication	RS-232C
I/O Points	10, 20, 30, or 40 points depending on the model
Timers	Yes, multiple timers available
Counters	Yes, multiple counters available
Input Voltage	24V DC
Output Type	Relay or transistor
Number of I/O Points	10, 20, 30, 40
Communication Ports	RS-232C (optional)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C
Humidity	10% to 90% (non-condensing)
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Program Memory	2048 steps (2K steps)