bürkert 1110 Bedienungsanleitung Seite 111

Filter 1 Root extraction
1
PV1
Input 1
Linearisation
5
SP1
Ramp
6
13
COs
CO
14
Controller 2
SP2
22
20
Controller 1
Input 2
23
PV2
Filter 2 Root extraction
Figure 4: Overall structure of the Digital Industrial Regulator
Refer to Page 122 ff for a description of the function blocks
110
DIGITAL INDUSTRIAL CONTROLLER
Scaling
2 3
4
7
Setpoint
limiting
10 11
CO2
Line of action
29
CO1
Manipulated
Line of action
variable limiting
25
24
ext.SP
Scaling
Alarm abs.
PV1
Alarm ratio
SP
27
Alarm rel.
Multiplier
12
Manipulated
variable limiting
21
ratio
cascade
off
Feed forward
Feed forward
control
8
Aabs
28
Averh
9
Arel
15
Continuous
signal
16
2-point-
PWM signal
17
3-point-
PWM signal
RA
18
3-point-
step signal
19
3-point-step
signal with
ext. p. a.
Controller
output
26
PDT1