Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 719

Double-precision Floating-point Instructions (CS1-H, CJ1-H, CJ1M, or CS1D Only)
Description
Area
Indirect DM/EM
addresses in binary
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
TAND(853) calculates the tangent of the angle (in radians) expressed as a
double-precision (64-bit) floating-point value in words S to S+3 and places the
result in words D to D+3.
(The floating point source data must be in IEEE754 format.)
TAN( S+3 S+2
Specify the desired angle (–65,535 to 65,535) in radians in words S to S+3. If
the angle is outside of the range –65,535 to 65,535, an error will occur and the
instruction will not be executed. For information on converting between
degrees and radians, see 3-16-9 DOUBLE DEGREES TO RADIANS:
RADD(849) or 3-16-10 DOUBLE RADIANS TO DEGREES: DEGD(850) .
If the absolute value of the result is greater than the maximum value that can
be expressed as floating-point data, the Overflow Flag will turn ON and the
result will be output as
The following diagram shows the relationship between the angle and result.
S
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
---
---
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
S+1 S ) D+3
.
R
Section 3-16
D
D+2 D+1 D
S: Angle (radian) data
R: Result (tangent)
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