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Manual_LCon_S7-1200_S7-1500_S7-1500T_en_2019-09-18.pdf
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SIMATIC Winder and Tension Control
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Warranty and liability
SIMATIC winding and tension control S7-1200/S7-1500(T)
Entry-ID: 58565043, V2.2.0, 09/2019
2
© Siemens AG
2019 All rights reserved
Warranty and liability
Note
The Application Examples are not binding and do not claim to be complete
regarding the circuits shown, equipping and any eventuality. The Application
Examples do not represent customer-specific solutions. They are only intended
to provide support for typical applications. You are responsible for ensuring that
the described products are used correctly. These Application Examples do not
relieve you of the responsibility to use safe practices in application, installation,
operation and maintenance. When using these Application Examples, you
recognize that we cannot be made liable for any damage/claims beyond the
liability clause described. We reserve the right to make changes to these
Application Examples at any time without prior notice.
If there are any deviations between the recommendations provided in these
Application Examples and other Siemens publications – e.g. Catalogs – the
contents of the other documents have priority.
We do not accept any liability for the information contained in this document.
Any claims against us – based on whatever legal reason – resulting from the use of
the examples, information, programs, engineering and performance data etc.,
described in this Application Example shall be excluded. Such an exclusion shall
not apply in the case of mandatory liability, e.g. under the German Product Liability
Act (“Produkthaftungsgesetz”), in case of intent, gross negligence, or injury of life,
body or health, guarantee for the quality of a product, fraudulent concealment of a
deficiency or breach of a condition which goes to the root of the contract
(“wesentliche Vertragspflichten”). The damages for a breach of a substantial
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proof to your detriment.
Any form of duplication or distribution of these Application Examples or excerpts
hereof is prohibited without the expressed consent of the Siemens AG.
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Table of contents
SIMATIC winding and tension control S7-1200/S7-1500(T)
Entry-ID: 58565043, V2.2.0, 09/2019
3
© Siemens AG
2019 All rights reserved
Table of contents
Warranty and liability ................................................................................................... 2
1 Winding and tension control – Overview ........................................................ 5
1.1 SIMATIC Converting Toolbox .............................................................. 5
1.2 Core functions ...................................................................................... 5
1.3 Additional functions .............................................................................. 7
1.4 Converting Diagnostic Pages (IT-Diag) ................................................ 8
2 Basic information about Winding and Tension Control ................................ 9
2.1 General overview of winders ................................................................ 9
2.2 General overview of tension control axis (sectional drive) ................. 11
2.3 Winding/Tension control concepts ..................................................... 12
3 Integration ........................................................................................................ 23
3.1 Integration into user program ............................................................. 23
3.2 Content of the library .......................................................................... 25
3.3 Starter – SINAMICS Configuration ..................................................... 26
3.4 TIA Portal – Hardware part................................................................. 26
4 Example project ............................................................................................... 29
5 Functional description .................................................................................... 31
5.1 General functions ............................................................................... 31
5.1.1 LCon_ReadCycleTimeS71200 ........................................................... 31
5.1.2 LCon_ReadCycleTimeS71500 ........................................................... 32
5.1.3 LCon_Linear ....................................................................................... 33
5.1.4 LCon_TableChar ................................................................................ 35
5.1.5 LCon_RFG – Ramp-function generator ............................................. 38
5.1.6 LCon_RFGJ – Ramp-function generator with rounding-off ................ 44
5.1.7 LCon_CalcStopDistance .................................................................... 50
5.1.8 LCon_ModuloIEC ............................................................................... 52
5.2 Logical functions ................................................................................. 54
5.2.1 LCon_TRIG ........................................................................................ 54
5.3 Scaling function blocks ....................................................................... 55
5.3.1 LCon_ScalingDWDRL ........................................................................ 55
5.3.2 LCon_ScalingRLDWD ........................................................................ 56
5.3.3 LCon_ScalingWDRL .......................................................................... 57
5.3.4 LCon_ScalingRLWD .......................................................................... 58
5.3.5 LCon_Scaling ..................................................................................... 59
5.4 Closed-Loop function blocks .............................................................. 60
5.4.1 LCon_PT1 .......................................................................................... 60
5.4.2 LCon_ReadAnalogInput ..................................................................... 63
5.4.3 LCon_Differentiator ............................................................................ 65
5.4.4 LCon_Integrator ................................................................................. 67
5.4.5 LCon_DT1 .......................................................................................... 71
5.4.6 LCon_Limiter ...................................................................................... 74
5.4.7 LCon_LevelControl ............................................................................. 76
5.4.8 LCon_DeadBand ................................................................................ 78
5.4.9 LCon_DeadZone ................................................................................ 80
5.4.10 LCon_AverageValue .......................................................................... 82
5.4.11 LCon_PID ........................................................................................... 84
5.4.12 LCon_TPID – PID-controller with setpoint channel ............................ 90
5.5 Drive related functions ........................................................................ 97
5.5.1 LCon_DriveControl ............................................................................. 97
5.5.2 LCon_SetpointChannel .................................................................... 104
5.5.3 LCon_FrictionMeasuement .............................................................. 108
Table of contents
SIMATIC winding and tension control S7-1200/S7-1500(T)
Entry-ID: 58565043, V2.2.0, 09/2019
4
© Siemens AG
2019 All rights reserved
5.6 Sectional drive functions .................................................................. 112
5.6.1 LCon_Sectional Drive ....................................................................... 112
5.6.2 LCon_SectionalConfigSetup ............................................................ 119
5.6.3 LCon_TorquePrecontrol ................................................................... 122
5.7 Winder function blocks ..................................................................... 128
5.7.1 LCon_DiamCalcDivision................................................................... 128
5.7.2 LCon_DiamCalcIntegral ................................................................... 131
5.7.3 LCon_DiamCalcAddition .................................................................. 137
5.7.4 LCon_DiamCalcWebLength ............................................................. 140
5.7.5 LCon_WITorquePrecontrol............................................................... 143
5.7.6 LCon_RestLengthCalc ..................................................................... 149
5.7.7 LCon_RestDiameterCalc.................................................................. 151
5.7.8 LCon_Taper ..................................................................................... 153
5.7.9 LCon_WinderConfigSetup................................................................ 158
5.7.10 LCon_Winder ................................................................................... 162
5.7.11 LCon_CalcTargetDiamStopCondition .............................................. 171
5.8 Data Types ....................................................................................... 175
6 Appendix ........................................................................................................ 182
6.1 Service and Support ......................................................................... 182
6.2 Application Support .......................................................................... 183
6.3 Links and Literature .......................................................................... 183
6.4 Change documentation .................................................................... 183
1 Winding and tension control – Overview
SIMATIC winding and tension control S7-1200/S7-1500(T)
Entry-ID: 58565043, V2.2.0, 09/2019
5
© Siemens AG
2019 All rights reserved
1 Winding and tension control – Overview
1.1 SIMATIC Converting Toolbox
The following library for realizing a winder/ tension control is part oft he SIMATIC
Converting Toolbox:
https://support.industry.siemens.com/cs/ww/en/view/109744606
The SIMATIC Converting Toolbox was developed with the objective to provide a
collection of common standard functions which are necessary for any kind of
converting machines.
Converting describes the process of processing/finishing any kind of material. In
most cases this starts with unwinding a material web which then is processed in
one or several steps in machine types like
• Printing machines
• Coating lines
• Laminating machines
• Slitters
• Web Inspection machines
• Wire drawing machines
• Extrusion lines
• Textile machines
• Diaper machines
• …
The open source library includes tested and documented functions which help the
user during engineering, programming and commissioning. Well-structured
interfaces and documented source code gives the possibility to make adaptions to
user specific requirements.
1.2 Core functions
The core functions of the SIMATIC Converting Toolbox are functions and functions
blocks to control a winding axis respectively tension control axis.
This includes mainly speed and torque setpoint calculations which are necessary
for different selectable control modes.
Further on the Toolbox provides sub-functions used typically in winding and tension
control systems, such as
• Diameter calculation
• Torque pre-control
• Gain adaption
• Tension taper characteristic
• …
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