Siemens SIPART DR24 - Page 47

Manual
1 Technical Description
1.5 Functional Description
1.5.7 Basic Functions (Arithmetic blocks b)
SIP ART DR24 6DR2410
C79000-G7476-C153-03
45
Linear equation
A=E1⋅ E2 + E3
tanα = E2 = A/E1
Default A = E1 ⋅ E2
Natural logarithmer
A = In E1 E1 > 0
E1 ≤ 0, A = --10
19
Multiplier
A=E1⋅ E2 ⋅ E3; with default: A = E1 ⋅ E2
Exponential function
A=E1⋅ E2
E3
A=e
E3
(default)
Rooter
A =
2
E1

The equation
only applies for
positive E1, ne-
gative E1 are
set equal to
zero. The output
can be set to
zero with E2 for
lower values of
E1, i.e.
A=0forE1 ≤
E2
Subtractor
A = E1 -- E2 -- E3; with default: A = --E2
With the default, this function acts as a negation for E2
E1
α
E3
A
0000
ncon
ncon
E1
A
.A∩
b.F
--
∩ .1
∩ .2
∩ .3
n
---
LinE
ncon
ln
n
.A
∩
---
∩ .1
b.F
--
Ln
ncon
--1.000
ncon
x
.A∩
b.F
--
∩ .1
∩ .2
∩ .3
n
---
MuLt
ncon
--1.000
2.718
E1⋅E2
E3
.A∩
b.F
--
∩ .1
∩ .2
∩ .3
Pot
0.2
E2
0.4 0.6 0.8 1.0
0.2
0.4
0.6
0.8
1.0
E11
A
ncon
0.000
E1

.A∩
b.F
--
∩ .1
∩ .2
n
---
root
0.000
0.000
ncon
.A∩
b.F
--
∩ .1
∩ .2
∩ .3
n
---
SUb
+
-
-