Siemens SIPART DR22 User Manual

Manual
1 Technical Description
1.5 Functional Description
1.5.7 Basic Functions (Arithmetic blocks b)
SIP ART DR24 6DR2410
C79000-G7476-C153-03
49
1.5.7.4 T iming Functions
Differentiator (high pass)
A= E1⋅ E2 ⋅ e
--t/E3
With E2 (V
v
) = derivative gain
E3 (T
v
) = derivative action
time constant [s]
Use for control technical applications:
T
v
=V
v
⋅ τ
v
= derivative action time
Example curve calculation:
with E2 = const. and
ΔE1
Δt
= const.
A = E2 ⋅ E3 ⋅
ΔE1
Δt
Recommendation : E3 ≪
ΔE1
Δt
(approx. 0.01)
Filter (low pass)
A= E1⋅ E2 (1 --e
--t/E3
)
With E2 = gain
E3 = time constant [s]
Default: A = E1 (1 --e
--t
)
Timer (monoflop)
Every positive edge at E1 (C) outputs a pulse with
length t = E3 at A. While A = high another positive
edge at E1 can output a pulse with length t again (re-
trigger). High at E2 (Reset) sets A to low and blocks
E1. Values at E3 for the pulse length in seconds are
limited to 1 to 7500.
E1 (C) E2 (R)
Output A
x 1
0
↑ 0
1 (duration t)
Restart conditions:
Power on Output A
bAtt = no 0.000
bAtt = YES last value
(hdEF)
ncon
x
1.000
1.000
.A∩
b.F
--
∩ .1
∩ .2
∩ .3
n
---
diF
Restart conditions:
Power on Output A
bAtt = no 0.000
bAtt = YES last value
(hdEF)
ncon
1.000
1.000
x
.A∩
b.F
--
∩ .1
∩ .2
∩ .3
n
---
FiLt
Restart conditions:
Power on Output A
bAtt = no 0
bAtt = YES last status, time continues
(hdEF) running from turn off time
t
C
R
ncon
Lo
1.000
.A#
b.F
--
# .1
# .2
∩ .3
n
---
tiME
t

Siemens SIPART DR22 Specifications

General

Brand	Siemens
Model	SIPART DR22
Category	Controller
Language	English