PS4 Suscosoft S40 Function Block Reference Manual h1365g.pdf

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H1365G.BK
Function Block Reference Manual
APP-RTT-B-GB
Sucosoft S 40
Application Software
Closed-Loop Control Toolbox, Basic Version
03/99 AWB 2700-1365 GB
1st published 1999, edition 03/99
© Moeller GmbH, Bonn
Author: Rainer Tenhagen
Production: Ingo Meyer
Translators: Baker & Harrison, Terence Osborn
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Contents
1 Basic Information and Technical Data 3
General 3
Philosophy of the RTT 5
Technical data and other technical information 7
Additional tools for the RTT
9
2 Controllers
11
PID controller
11
PD three-step controller
15
Two-step controller
21
Three-step controller
24
3 Pulse Duration Modulator (PDM)
29
PDM
29
4 Miscellaneous Function Blocks
33
PT1 signal smoothing filter
33
Ramp function
36
Two-point interpolation (scaling)
41
PLC cycle time setpoint value
(equidistant PLC cycle times)
44
Index
47
1
03/99 AWB 2700-1365 GB
1 Basic Information and Technical Data
General
The basic version of the closed-loop control toolbox
(RTT) is a tool for programming with Sucosoft S 40 to
the IEC 1131-3 standard. Once installed, the toolbox
provides 9 function blocks under the menu item
“Symbols/User-defined function blocks”, each in
German and English. The basic version of the
toolbox covers the basic requirements for closed-
loop control such as a PID controller in conjunction
with a pulse duration modulator.
Should the user require further functions, the full
versions of the RTT are available in German and
English. The full versions contain approximately
100 function blocks from the following areas:
Mathematical and logical function blocks
Trigonometric functions
Exponentiation, root extraction
Interpolation
Basic blocks of closed-loop control
Integrator
DT1 system
Sinus oscillation
Hysteresis
3
Basic Information and
Te c h n i c a l D a t a
Controllers
PID controller
PID split-range controller (heating/cooling)
Autotuning controller
PD three-step controller
Two-step controller
Three-step controller
Pulse duration modulation (PDM)
Conventional PDM
Dynamic PDM
Split-range PDM
Noise-shape PDM (suitable only for solid states)
Signal filters, processing and limitation
Tolerance limit monitors
Limit monitors
PT1 filters
PT3 filters
System simulation
Oscillatory PTn system simulation
Fuzzy systems
Fuzzy function blocks with 2 to 4 input variables
and 2, 3 or 5 terms per input variable
Which PLCs can be used with the RTT?
The RTT can be used on all PLCs that can be
programmed with Sucosoft S 40, e. g. PS 4-201,
PS 416 and PS 4-341.
4
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