Eaton ELC-PB, Programming Manual

Page: 495 / 728

E L C P r o g r a m m i n g M a n u a l
F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m M N 0 5 0 0 3 0 0 3 E
3 - 3 2 6
API Mnemonic Operands Function
138 D TANH P S, D Hyperbolic Tangent
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S * * *
D *
DTANH, DTANHP: 9
steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S : Source value (binary floating point) D : TANH result
Description:
1. See the specifications of each model for their range of use.
2. Flags: M1020 (zero flag); M1021 (borrow flag); M1022 (carry flag)
3. TANH S =(e
s
-e
-s
)/(e
s
+e
-s
) . The result is stored in D .
Program Example:
1. When X0 = On, obtain the TANH of binary floating point value (D1, D0) and store the binary
floating point result in (D11, D10).
DTANH
X0
D0 D10
D1 D0
D11 D10
TANH value
binary floating point
binary floating point
2. If the absolute value of the result
＞
maximum available floating point value, the carry flag
M1022 = On.
3. If the absolute value of the result
＜
minimum available floating point value, the borrow flag
M1021 = On.
4. If the result = 0, the zero flag M1020 = On.