Siemens SIMATIC VS120 Operating Instructions Manual

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SIMATIC Sensors Image processing systems Vision Sensor SIMATIC VS120

DOCUMENTATION

Operating Instructions Edition 02/2006

Image Processing Systems

SIMATIC VS120

simatic sensors

DOCUMENTATION

SIMATIC Sensors

Image processing systems Vision Sensor SIMATIC VS120

Operating Instructions

Introduction

Safety instructions

Description

Image processing

Network and system integration

Installation

Connecting

Commissioning

Operation

Process interfacing over an automation system (PLC, PC)

Alarm, error and system messages

Technical data

Dimension drawings

Scope of delivery/Spares/Accessories

Edition 02/2006

A5E00757507-01

Service & Support

Directives and declarations

Safety Guidelines

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

Danger

indicates that death or severe personal injury will result if proper precautions are not taken.

Warning

indicates that death or severe personal injury may result if proper precautions are not taken.

Caution

with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

Caution

without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

Notice

indicates that an unintended result or situation can occur if the corresponding information is not taken into account.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.

Qualified Personnel

The device/system may only be set up and used in conjunction with this documentation. Commissioning and operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission, ground and label devices, systems and circuits in accordance with established safety practices and standards.

Prescribed Usage

Note the following:

Warning

This device may only be used for the applications described in the catalog or the technical description and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage, positioning and assembly as well as careful operation and maintenance.

Trademarks

All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

Siemens AG

Automation and Drives Postfach 48 48 90437 NÜRNBERG GERMANY

Order No.: A5E00757507-01 Edition 02/2006

1 Introduction............................................................................................................................................. 1-1

2 Safety instructions .................................................................................................................................. 2-1

3 Description.............................................................................................................................................. 3-1

3.1 Product description .................................................................................................................... 3-1

3.2 Performance features ................................................................................................................ 3-2

3.3 Function ..................................................................................................................................... 3-3

3.4 System components .................................................................................................................. 3-4

3.5 System requirements................................................................................................................. 3-5

3.6 Design of the SIMATIC VS120 processing unit......................................................................... 3-6

3.7 Design of the sensor head with LED ring flash.......................................................................... 3-8

4 Image processing ................................................................................................................................... 4-1

4.1 General information ................................................................................................................... 4-1

4.2 Shutter Speed and Brightness................................................................................................... 4-2

4.2.1 Different exposures and brightnesses ....................................................................................... 4-2

4.2.2 Disturbing contours caused by shine......................................................................................... 4-3

4.3 Generating models and detecting orientation............................................................................ 4-5

4.3.1 Setting for the Precision parameter ........................................................................................... 4-5

4.3.2 Measures for optimizing object recognition ...............................................................................4-6

4.4 Quality of the measured values ................................................................................................. 4-7

4.5 Geometric distortion................................................................................................................... 4-8

4.6 Main ROI and sub-ROI .............................................................................................................. 4-8

4.6.1 Example: Main ROI and 3 sub-ROIs .........................................................................................4-9

4.6.2 Example of the influence of sub-ROIs on the quality value..................................................... 4-10

4.7 Job parameter.......................................................................................................................... 4-13

4.8 Search parameter .................................................................................................................... 4-16

4.9 Model type parameter .............................................................................................................. 4-17

4.10 Model sets................................................................................................................................ 4-19

5 Network and system integration...............................

...............................................................................

5-1

5.1 Overview .................................................................................................................................... 5-1

5.2 System configuration over digital I/O ......................................................................................... 5-2

5.3 PROFIBUS DP system configuration ........................................................................................ 5-3

5.4 PROFINET IO system configuration.......................................................................................... 5-4

5.5 System configuration with Ethernet or RS-232 over Com server.............................................. 5-5

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iii

Table of contents

6 Installation .............................................................................................................................................. 6-1

6.1 Installing the SIMATIC VS120 processing unit .......................................................................... 6-1

6.2 Installing the sensor head with LED ring flash........................................................................... 6-1

7 Connecting ............................................................................................................................................. 7-1

7.1 Guidelines on installation and avoiding electrical interference .................................................. 7-1

7.2 Guidelines on installation when using PROFIBUS DP or PROFINET IO.................................. 7-1

7.3 Connecting components ............................................................................................................ 7-2

8 Commissioning ....................................................................................................................................... 8-1

8.1 Prerequisites .............................................................................................................................. 8-1

8.2 Overview of the steps in commissioning.................................................................................... 8-2

8.3 Turn on the VS120 processing unit............................................................................................ 8-3

8.4 Establish an Ethernet connection between the processing unit and PG / PC........................... 8-5

8.4.1 Select the connection variant..................................................................................................... 8-5

8.4.1.1 Connection variants ................................................................................................................... 8-5

8.4.1.2 Operating the VS120 processing unit as a DHCP server.......................................................... 8-6

8.4.1.3 Connecting the VS120 processing unit manually ...................................................................... 8-7

8.4.1.4 Integrating the VS120 processing unit as a DHCP client in a network...................................... 8-9

8.4.1.5 Integrating the VS120 processing unit as a device in a PROFINET IO network..................... 8-10

8.4.2 Check whether a proxy server is being used ........................................................................... 8-12

8.4.3 Change the proxy configuration of your Internet Explorer ....................................................... 8-13

8.4.4 Check the connection............................................................................................................... 8-14

8.5 Start setup support over the Internet Explorer......................................................................... 8-15

8.6 Adjust the sensor head using setup support............................................................................ 8-17

9 Operation................................................................................................................................................ 9-1

9.1 Overview .................................................................................................................................... 9-1

9.2 Working with the processing unit ............................................................................................... 9-1

9.2.1 Introduction ................................................................................................................................ 9-1

9.2.2 Adjust ......................................................................................................................................... 9-2

9.2.3 Connect......................................................................................................................................

9-2

9.2.4 RUN............................................................................................................................................ 9-9

9.2.5 Options..................................................................................................................................... 9-15

9.2.6 Maintain.................................................................................................................................... 9-18

9.3 Working with setup support...................................................................................................... 9-19

9.3.1 Introduction .............................................................................................................................. 9-19

9.3.2 Adjust Sensor........................................................................................................................... 9-24

9.3.3 Connections ............................................................................................................................. 9-25

9.3.4 Train ......................................................................................................................................... 9-27

9.3.5 Processing................................................................................................................................ 9-33

9.3.6 Options..................................................................................................................................... 9-37

9.3.7 Information ............................................................................................................................... 9-43

9.3.8 Maintain.................................................................................................................................... 9-49

9.3.9 Stop.......................................................................................................................................... 9-51

10 Process interfacing over an automation system (PLC, PC) .................................................................. 10-1

10.1 Integrating the PROFIBUS DP slave SIMATIC VS120 in HW Config ..................................... 10-1

10.2 Integrating the PROFINET IO device SIMATIC VS120 in HW Config..................................... 10-4

10.3 Control over the "DI/DO" I/O interface ..................................................................................... 10-7

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iv Operating Instructions, Edition 02/2006, A5E00757507-01

Table of contents

10.4 Control over PROFIBUS DP and PROFINET IO................................................................... 10-10

10.4.1 Principle of data transfer over PROFIBUS DP and PROFINET IO ....................................... 10-10

10.4.2 Assignments for PROFIBUS DP / PROFINET IO-relevant interfaces for the

processing unit....................................................................................................................... 10-11

10.4.2.1 Control byte............................................................................................................................ 10-11

10.4.2.2 Status byte ............................................................................................................................. 10-12

10.4.2.3 User data interface "Send" VS120 processing unit >>> automation system......................... 10-12

10.4.2.4 User data interface "Receive" automation system >>> VS120 processing unit.................... 10-14

10.4.3 Programming data fragmentation .......................................................................................... 10-14

10.5 Function block FB1 ................................................................................................................ 10-16

10.5.1 Job ......................................................................................................................................... 10-16

10.5.2 Parameter .............................................................................................................................. 10-17

10.5.3 Operator control ..................................................................................................................... 10-19

10.5.4 Error information .................................................................................................................... 10-20

10.6 Sample programs................................................................................................................... 10-21

10.6.1 Example 1: Program for interfacing the SIMATIC VS120 processing unit with a

SIMATIC controller using FB1 ............................................................................................... 10-21

10.6.2 Example 2: Program for archiving diagnostic information on a PC/PG................................. 10-23

11 Alarm, error and system messages ...................................................................................................... 11-1

11.1 Overview .................................................................................................................................. 11-1

11.2 Error messages and error handling ......................................................................................... 11-1

11.3 Diagnostics based on the "BF" LED ...................................................................................... 11-10

11.4 Slave diagnostics or /O device diagnostics ........................................................................... 11-11

12 Technical data ...................................................................................................................................... 12-1

12.1 General technical specifications .............................................................................................. 12-1

12.2 Technical specifications of SIMATIC VS120 ........................................................................... 12-5

12.3 Port assignment of the processing unit.................................................................................... 12-8

13 Dimension drawings ............................................................................................................................. 13-1

13.1 SIMATIC VS120 processing unit ............................................................................................. 13-1

13.2 SIMATIC VS120 sensor head.................................................................................................. 13-2

13.3 SIMATIC VS120 lighting unit ...............................

....................................................................

13-3

14 Scope of delivery/Spares/Accessories.................................................................................................. 14-1

14.1 Components............................................................................................................................. 14-1

14.2 Full packages ........................................................................................................................... 14-2

14.3 Accessories.............................................................................................................................. 14-4

14.4 C-mount lens and inspection window size............................................................................... 14-5

15 Service & Support................................................................................................................................. 15-1

15.1 A&D Mall / Interactive Catalog (CA01) .................................................................................... 15-1

15.2 Service and support ................................................................................................................. 15-1

16 Directives and declarations................................................................................................................... 16-1

Glossary ..................................................................................................................................... Glossary-1

Index................................................................................................................................................ Index-1

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

Table of contents

Vision Sensor SIMATIC VS120

vi Operating Instructions, Edition 02/2006, A5E00757507-01

Introduction

Purpose of the manual

This manual contains all the information you require to install, commission and work with the SIMATIC VS120 Vision Sensor System.

It is intended both for persons configuring and installing automated plants with image processing systems and for service and maintenance technicians.

Scope of this manual

The manual is valid for all supplied versions of the SIMATIC VS120 Vision Sensor system and the processing unit with order number (MLFB) 6GF1 018-2AA10.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

1-1

Introduction

Vision Sensor SIMATIC VS120

1-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Safety instructions

Caution Please observe the safety instructions on the back of the cover sheet of this documentation.

You should not make any expansions to your device unless you have read the relevant safety instructions.

This device meets the relevant safety requirements in compliance with IEC, VDE, and EN. If you have questions about the validity of the installation in the planned environment, please contact your service representative.

Repairs

Only authorized personnel are permitted to repair the device.

Warning Unauthorized opening of and improper repairs to the device may result in substantial

damage to equipment or risk of personal injury to the user.

System expansion

Only install system expansions intended for this device. If you install other upgrades, you may damage the system or violate the safety requirements and regulations for radio frequency interference suppression. Contact your technical support team or where you purchased your device to find out which system expansion devices may safely be installed.

Caution If you install or exchange system expansions and damage your device, the warranty

becomes void.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

2-1

Safety instructions

Vision Sensor SIMATIC VS120

2-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Description

3.1 3.1 Product description

The SIMATIC VS120 Vision Sensor is used for the optical detection and testing of objects with lighting from above. The SIMATIC VS120 Vision Sensor checks whether or not the correct object is being tested, whether or not it is damaged and the position of the object.

The SIMATIC VS120 Vision Sensor returns the following recognition values during object recognition:

• x coordinate

• y coordinate

• Angle

• Quality rating of the specimen, number of detected parts

This object recognition data is transferred to processing units in automation systems. The data is processed in the processing units of the automation systems.

The SIMATIC VS120 Vision Sensor is suitable for:

• Recognition of parts in sorting tasks

• Determining the position for Pick & Place applications

• Checking the presence and position of objects in production

• Checking position in feed systems, for example with oscillating conveyors, workpiece

holder, conveyor belts, circulating systems, grasper units and robots.

• Quality control of specimens

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

3-1

Description

3.2 Performance features

3.2 3.2 Performance features

• Overhead lighting head with LED ring flash

• Object recognition with object search and object test

• Commissioning using adjustment support on the PG / PC with installed Internet Explorer

• Up to 20 objects tested per second

• Up to 64 specimens can be stored

• Two digital outputs are available for sorting the specimens: OK, N_OK

• Fully Web-based user interface

• Extensive operator control and monitoring functions even in the processing mode

• Wide-ranging diagnostics and logging functions: Error image memory and event logging

• Firmware update using operator interface of the Web browser

• Control via Digital I/O, PROFIBUS DP and PROFINET IO

• Result output via:

– PROFIBUS DP – PROFINET IO – RS-232 port of an RS-232 Ethernet converter – TCP/IP connection of the PC / PG

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3-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Description

3.3 Function

3.3 3.3 Function

Testing correctness of individual characteristics of the specimen

64 models are available for the recognition of specimens. The SIMATIC VS120 checks whether or not the individual characteristics of the specimens have the same shape as the in the trained model. When specifying the recognition and evaluation areas, avoid shiny surfaces on specimens.

Principle of edge recognition

To recognize image patterns, edges are used. These edges from the images are the transitions from light to dark or vice versa. A model is created from the sum of the edges extracted in the image and their arrangement.

Recognition and localization of parts

The SIMATIC VS120 scans specimens and determines the coordinates including the roll angle and passes them to the control system such as S7, for example, via PROFIBUS DP.

Testing the completeness of a model

The SIMATIC VS120 also checks specimens for completeness. Deviations from the trained model are detected and the quality values of the evaluation are displayed.

Sorting functions for models and model sets

Depending on the importance of the application, 15 model sets with 64 different models can be assembled and saved for processing. The models are sorted according to the application with a controller for processing with the SIMATIC VS120.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

3-3

Description

3.4 System components

3.4 3.4 System components

SIMATIC VS120 Vision Sensor full package comprising:

• Sensor

• Processing unit

• Lighting

• Cable

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Figure 3-1 Example of a typical system configuration with conveyor system

Vision Sensor SIMATIC VS120

3-4 Operating Instructions, Edition 02/2006, A5E00757507-01

Description

3.5 System requirements

3.5 3.5 System requirements

You require the following hardware and software components for the SIMATIC VS120 Vision Sensor system:

Hardware

• SIMATIC VS120 processing unit

• Sensor head with CCD sensor chip for detection of the object

• LED ring flash for SIMATIC VS with degree of protection IP65 (not included in every full

package), for optimum illumination of the object

• Cables:

– Power supply cable – Lighting cable – Sensor cable – DI / DO cable

• Documentation package

Software

– Operating Instructions (compact) – Documentation CD

You also require the following:

• 24 V DC, 2 A power supply; (20.4...28.8 V DC, safety extra low voltage, SELV).

• PC / PG with the following configuration:

– At least 500 MHz clock frequency – Graphics card with at least 65536 colors and a resolution of at least 1024 x 768 pixels – Ethernet port with up to 100 Mbps (protocol: TCP/IP)

• Crossover RJ-45 Ethernet cable for connecting the processing unit and the PC / PG

• Microsoft Windows XP Professional SP1 operating system with Internet Explorer 6.0 as of

SP1

• Microsoft Java VM or Sun Java VM version J2SE 1.4.2_06 or J2SE 5.0 (you will find more detailed information on the Internet at the following address http//:www.java.sun.com/J2SE)

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

3-5

Description

3.6 Design of the SIMATIC VS120 processing unit

3.6 3.6 Design of the SIMATIC VS120 processing unit

VS120 processing unit (MLFB 6GF1 0182AA10)

   

Item

Meaning

No. (1) Status LEDs (2) LCD display (3) Keypad (4) Housing consisting of hood and base (5) Interfaces



Status LEDs LEDs Color Meaning

SF Red General fault POWER Green Power supply is turned on TRAINED Green Selected model has been trained READY Green

OK Green Result good: Model was recognized

- Green N_OK Yellow Result bad: Object was not recognized BF Red Bus fault on PROFIBUS DP or PROFINET IO

• off = device startup or SIMATIC VS120 in Stop

• on = SIMATIC VS120 in Run

Vision Sensor SIMATIC VS120

3-6 Operating Instructions, Edition 02/2006, A5E00757507-01

Description

3.6 Design of the SIMATIC VS120 processing unit

LCD display and keypad Item

 

Designation Meaning

No. (1) LCD

display

(2)

Keypad

Displays menu commands (lines 1 to 3) and the keys that are currently available (line 4)

Navigation from menu to menu and within the menus

Interfaces Item

  

 



Meaning

No. (1) Supply voltage 24 V DC, circular M12 connector (2) Functional ground with M5 screw-type connector (3) Lighting unit, circular M12 connector (4) Sensor head, HD D-sub connector, 26-pin (5) I/O, D-sub connector, 15-pin (6) PROFIBUS DP, D-sub connector, 9-pin (7) Ethernet / PROFINET IO; RJ-45 plug

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

3-7

Description

3.7 Design of the sensor head with LED ring flash

3.7 3.7 Design of the sensor head with LED ring flash

Sensor head with LED ring flash Item

No.

(1)

(2)

(3)

(4)

Meaning

Circular connector M12

Sensor head

LED ring flash (not supplied with all full packages)

Lens, permanently installed and non-adjustable (fixed focus version)

Vision Sensor SIMATIC VS120

3-8 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.1 4.1 General information

To form patterns that can be recognized, edges (transitions from light to dark or vice versa) from the image are used. Although the algorithm extracts the edges automatically, the user must make sure that the lighting is ideal for an image with good contrast; in other words, to create models for recognition, it is essential to use the lighting correctly to achieve an image with high contrast.

Note The installation of suitable lighting often involves more time than all the other activities such

as securing the camera, connecting to the PLC, training, setting the correct triggers etc. together. With metallic surfaces in particular, it is advisable to ask the advice of a lighting expert due to the possible shine.

Part of object recognition is the recognition of the position of the object in the image. The starting point is the midpoint of the image to which all coordinates relate. The top left has the coordinates (-320; 240) and bottom right (320; -240).

If the object is not recognized, the position at the top left is output for x / y. The user should always query whether or not this is an OK / N_OK evaluation and not rely on the x / y positions!

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-1

Image processing

4.2 Shutter Speed and Brightness

4.2 4.2 Shutter Speed and Brightness

Correct exposure time (shutter speed) influences the quality of the extracted edges. To control the exposure time / brightness, you can use the parameters Shutter speed and Brightness.

The shutter speed / brightness must be set to obtain the optimum contrast. The automatic exposure control can help to achieve the optimum shutter speed setting.

Below, you will find examples of different shutter speeds and disturbing contours:

4.2.1 Different exposures and brightnesses

Correct exposure

Shutter speed: 3800 Brightness: 357

Overexposure

Shutter speed: 6000 Brightness: 357 or Shutter speed: 3800 Brightness: 500

Vision Sensor SIMATIC VS120

4-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.2 Shutter Speed and Brightness

Underexposure

4.2.2 Disturbing contours caused by shine

Shiny areas on the surfaces of the part cause disturbing edges that must be avoided for a representative model. In the example shown below, you can see clearly that even the automatic shutter control can cause bad edges in this case. These edges make recognition of the parts unreliable since they are often not reproducible.

Shutter speed: 800 Brightness: 357 or Shutter speed: 3800 Brightness: 93

Unwanted edge lines

In the trained model shown here, you can see unwanted edge lines that reduce quality during the search and recognition and therefore ought to be avoided.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-3

Image processing

4.2 Shutter Speed and Brightness

Remedy by manual overexposure

If this method cannot be used, the user can do the following:

• Use the erasure function on the edges of the model to enable optimally training for the contour

This image was manually overexposed. The contour is ideal and can be clearly recognized.

• Correct the problem by setting the shutter speed offset for automatic exposure control

Other interference affecting object recognition

In addition to the previously mentioned interference, other factors can also have a negative influence on the search for a pattern.

• Shadows (particularly caused by the depth of the objects)

• Non-uniform lighting

• Geometric distortion by the lens, particularly when the camera is not perpendicular to the

pattern

• Blurring due to motion if the shutter speed is too slow for moving parts

There are functions and parameters in the SIMATIC VS120 Vision Sensor to reduce the negative effects of such interference in recognizing parts. They help to create optimal edges from the image to generate patterns.

Vision Sensor SIMATIC VS120

4-4 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.3 Generating models and detecting orientation

4.3 4.3 Generating models and detecting orientation

A model is created from the sum of the edges extracted in the image and their arrangement. To ensure good processing quality, the contours of the model should lie within the ROI (Region of Interest).

4.3.1 Setting for the Precision parameter

The precision setting is based on the size of the ROIs and recognizable changes in the specimen. The search for a part in the image is "pyramidal". It starts with a coarse search at low resolution and finishes with a fine search at high resolution. The Precision parameter affects the coarse and fine search.

Coarse and fine search

The table shows the start and end values of the resolution during the search process with the various levels of precision.

Precision level Start value for the resolution

Width x Height (in pixels) Fine1 320 x 240 640 x480 Fine2 160 x 120 640 x480 Fine3 80 x 60 640 x480 Medium1 80x60 320 x 240 Medium2 40x30 320 x 240 Coarse1 40x30 160 x 120 Coarse2 20x15 160 x 120

End value for the resolution Width x Height (in pixels)

The precision for determining the position should be set as follows:

• "Fine" for the sub-pixel range

• "Medium" for +/-1 pixel and +/-1°

• "Coarse" for +/- 2 pixels and +/-1°

– The precision for determining the position still depends on the pattern size and the

number of edges found in it and may therefore deviate from the values shown above.

– The angle precision can be increased to < 1° with the "Angle Precision" parameter in

"Options - Extras tab".

Note If the setting is "Fine1" and the model is large, the processing times may be several

seconds.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-5

Image processing

4.3 Generating models and detecting orientation

Note If exposure is set to "Manual" and the user changes the precision in the adjustment

support (adjust sensor), the "shutter speed" exposure parameter is adjusted automatically. Depending on the distance of the object to the camera, this can cause inaccuracies.

Example for declaring the Precision parameter

A wall is hung full of A4 sheets on which various texts have been printed. An observer has the task of finding a specific sheet among all the others.

Procedure:

• To accelerate the search, the observer stands at a considerable distance from the wall. The distance from the wall selected by the observer depends on the criteria on which the search is based, among other factors.

• The observer begins to presort all the sheets. If the observer is looking for a large rough drawing, they will stand a long way away to be able to see all drawings at the same time. In this case, the observer would select "Fine3".

• If the observer concentrates on details, such as text format or heading, he would move closer. Since he is examining more details, the search takes correspondingly longer. In this case, the observer would select Fine2 or Fine1.

• Once the observer has made a rough selection, he moves closer to the sheets and investigates each sheet in detail. He now exactly compares individual words and image details with a reference sheet. The observer no longer examines each sheet in detail because he has already limited the selection.

The algorithm of the SIMATIC VS120 Vision Sensor works in much the same way as the example described above.

4.3.2 Measures for optimizing object recognition

Problem: Object was not trained

If the object could not be trained, the reason may be that there were not enough contours in the selected ROI.

Remedy

• Make sure that the ROI is selected correctly (position and size) and that the object is within the ROI when training.

• If this problem still occurs, the object to be trained has too few contours. In this case, a change in the setting of the precision towards greater precision might help, for example, from Medium2 to Medium1 or to Fine1.

Vision Sensor SIMATIC VS120

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Image processing

4.4 Quality of the measured values

• If these measures still do not lead to success, try the following for example:

– Select other lighting – Specify other more detailed object regions in the ROI – Enlarge the ROI or similar

• Another remedy is to change the brightness with high contrast in order to clearly detect

the change in the image.

4.4 4.4 Quality of the measured values

All the displayed measured values for imaging geometry of a read model are subject to the following inaccuracies.

Processing precision

• for the position (x and y coordinates): up to ± 0.1 pixels

• for the angle (angle precision): up to ± 0,2°

The processing precision is influenced by the following factors:

• Lighting effects such as reflection and shadow

• Perspective distortion, such when the camera is too close to or at too oblique an angle to

the object

• Differences in the object, for example, dirty objects

• Variation in the trained background structure

Fluctuations in size

Fluctuations in size in the image up to ± 10 % are tolerated, if the specimens are the same position as the trained pattern. These fluctuations can be caused by the following:

• Different distances between specimens and the lens caused by a different position on the

conveyor belt or workpiece holder

• Different pattern sizes in the specimen

Perspective distortion

• Perspective distortion in the recorded image are tolerated if the specimens have the

same orientation as the trained pattern.

• If there is perspective distortion and the orientation is different, no general statement is

possible. In this case, the shape of the specimens and the angle between the camera level and pattern level are the factors that determine whether or not the specimens can be recognized.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-7

Image processing

4.5 Geometric distortion

Relationship between resolution and pixel size

The following table shows which actual length corresponds to the side length of a pixel. Remember that this value applies only for the specified image width. The sensor heads 6GF2 002-8DA (SIMATIC VS120 for large specimens) and 6GF2 002-8EA (SIMATIC VS120 for small specimens) were based on the maximum possible image widths.

Graphic

width

SIMATIC VS120 for large specimens

SIMATIC VS120 for small specimens

C/CS mount 12 mm 12/640 = 0.02 mm / pixel 12/320 = 0.04 mm / pixel

70 mm 70/640 = 0.11 mm / pixel 70/320 = 0,22 mm / pixel

40 mm 40/640 = 0,06 mm / pixel 40/320 = 0,13 mm / pixel

Resolution per pixel at 640*480

Resolution per pixel at 320*240

4.5 4.5 Geometric distortion

Geometric distortion caused by the lens is compensated. With sensor heads with fixed lenses, the value of the distortion is set automatically and should no longer be changed. If standard lenses with a C mount are used, the user can make the compensation manually by changing the parameters.

4.6 4.6 Main ROI and sub-ROI

Processing with main ROIs is usually sufficient to evaluate the image. ROIs (Region of Interest) are used to distinguish a part from the background better. The sub-ROI option added to the main ROI allows certain details of patterns, which would otherwise be indistinguishable in comparison to the total contour, to be weighted more heavily. Testing for damage or completeness are examples of this.

This is, for example, the case if you have shiny areas or variable areas in the object. Using sub-ROIs, you can concentrate the search and the evaluation on the important characteristics and suppress irrelevant ones.

Procedure

1. Training of the main ROI concentrating on the invariable characteristics of the specimen

2. Select the "ROI: New" button the dialog "Training - ROI tab" of the adjustment support. A rectangle or circle appears on the screen depending on the shape selected for the subROI.

3. Changing the size and position of the sub-ROI in the same way you define the main ROI

Vision Sensor SIMATIC VS120

4-8 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.6 Main ROI and sub-ROI

4.6.1 Example: Main ROI and 3 sub-ROIs

Example: Main ROI and 3 sub-ROIs

Task description: The task is to check whether the Siemens logo was printed completely.

In the image on the left, you can see the edges marked for sub-ROI3. The main ROI is the large window, while sub-ROI1 encompasses "SIE" and sub-ROI2 encompasses "ME".

Parameter assignment

Parameter name Main ROI Sub-ROI 1, 2 and 3 Task Find (default) Find (default) scaling Fixed Fixed (default) Precision Fine3 Fine1 Model. type Edges (default) Edges (default)

• The sub-ROIs can be set with the precision Fine1 since the pattern windows are small.

This ensures that no details are lost.

• Fine3 should, however, be selected for the main ROI otherwise the processing time will

take too long. In this case, the selection of the precision (Fine1, Fine2 or Fine3) has no effect on the quality value of the result.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-9

Image processing

4.6 Main ROI and sub-ROI

Example of recognition of a bad object

In this example, the "S“ and the "N“ are missing. If only one ROI had been trained, the quality would have been 87.2% (=quality of the main ROI).

Sub-ROI1: 60.6% Sub-ROI2: 98.7% Sub-ROI3: 42.0% 70% is selected as the quality limit for all ROIs and

an object is then evaluated as N_OK if a sub-ROI falls below the quality limit.

4.6.2 Example of the influence of sub-ROIs on the quality value

Based on the example below, we will illustrate the effects on the quality value of a specimen of using sub-ROIs.

The example model appears as follows:

Note If features are allowed in the area enclosed by the ROI or sub-ROIs that you do not want to

be evaluated, select "Find" as the job in the "Options - Training tab" of the adjustment support. Otherwise, select the value "Identify".

Note If only one main ROI is used, the cumulative quality corresponds to the quality of the main

ROI. If sub-ROI and main ROI are used, the cumulative quality is calculated from the average of

the sub-ROI qualities.

Vision Sensor SIMATIC VS120

4-10 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.6 Main ROI and sub-ROI

Without sub-ROIs, green rectangle means main ROI.

With sub-ROIs, red rectangle means sub-ROIs

The following specimens must be evaluated:

Specimen 1: Job: Without sub-ROIs With sub-ROIs

Note

is the cumulative quality of the main-ROI

• Q

is the average value of the quality of the sub-ROIs

Identify QC = 100 % QA = 100 % Find Q

= 100 % QA = 100 %

Specimen 2: Job: Without sub-ROIs With sub-ROIs

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

Identify QC < 100 % QA < 100 % Find Q

= 100 % QA = 100 %

4-11

Image processing

4.6 Main ROI and sub-ROI

Specimen 3: Job: Without sub-ROIs With sub-ROIs

Identify QC < 100 % QA = 100 % Find Q

= 100 % QA = 100 %

Specimen 4: Job: Without sub-ROIs With sub-ROIs

Identify QC < 100 % QA = 100 % Find Q

< 100 % QA = 100 %

Specimen 5: Job: Without sub-ROIs With sub-ROIs

Identify QC < 100 % QA < 100 % Find Q

= 100 % QA = 100 %

Vision Sensor SIMATIC VS120

4-12 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.7 Job parameter

4.7 4.7 Job parameter

The Job parameter has the options "Find" and "Identify"

Find

If the "Find“ option is selected, additional edges of the specimen are not taken into consideration.

Identify

If the "Identify" option is selected, additional edges of the detected specimen are taken into consideration and compared with the edges of the reference model.

Example

Metal plate with three holes. If "Find" is set, the quality 100% will be output for a metal plate with an additional hole. If "Identify" is set, the quality value will be lower because the additional edges of the fourth hole do not have corresponding edges in the reference image.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-13

Image processing

4.7 Job parameter

Example 1

Trained sub-ROI

"Find" job. Result: Quality 99.3%

"Identify" job. Result: Quality 69%

The additional edges of the object pattern that are not included in the reference pattern can be clearly seen.

Vision Sensor SIMATIC VS120

4-14 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.7 Job parameter

Example 2

An additional sub-ROI is trained:

"Find" job

If the "Job" parameter is set to the value "Find", the following quality values are obtained:

• Main ROI: 98.7%

• Additional sub-ROI: 90.5%

Even a value of 90.5% is too unreliable to be able to set the quality limit here.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

"Identify" job.

The "Job" parameter is now set to "Identify" for the additional sub-ROI. The following result is then achieved:

Quality value of the additional sub-ROI:

69.3% Changes can now no longer be reliably

detected with an increased quality limit.

4-15

Image processing

4.8 Search parameter

4.8 4.8 Search parameter

Two areas can be specified for image recognition.

• Limited: The ROIs around the specimen cannot extend beyond the edge of the image. Limited is the default value.

• Open: The ROIs around the specimens can go beyond the edge of the image by a maximum value specified by d

You must specify the maximum value d by the following when an open area is used:

dmax = 30%

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Figure 4-1 Search parameter

w = width h = height d = maximum value for the position beyond the edge of the image OK = position for processing OK N_OK = position for processing not OK

1) = center point of the pattern

2) = image area

Vision Sensor SIMATIC VS120

4-16 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.9 Model type parameter

4.9 4.9 Model type parameter

The human eye instinctively classifies edges with a strong contrast as being more important than those with a weak contrast. In the "Model type" parameter, this phenomenon is taken into consideration in the processing with two settings:

• Edges if prominent edges of the specimen are important for processing. Edges is the

default value

• Area if all the edges in the specimen are weighted the same for processing.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-17

Image processing

4.9 Model type parameter

Example

The cross in the middle is a contour with significantly greater contrast than other contours. If an application requires this region to be weighted as being more important than the rest for the search, "Edge" should be set as the model type.

"Edge“ model type parameter Result: Quality value 53%

"Area“ model type parameter

If you want all areas to be weighted the same, select "Area".

Result: Quality value 76.5%

Vision Sensor SIMATIC VS120

4-18 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.10 Model sets

4.10 4.10 Model sets

Features

• The model sets functions enables the SIMATIC VS120 Vision Sensor to classify (sort)

parts.

• Classification involves individual examination of the models in the model set.

Classification is considered successful if at least one of these models is evaluated as OK. A model with the highest cumulative quality is determined from all the models evaluated as OK. This evaluation result is generated as "Best".

• The number of models allowed in a model set depends on the complexity of the mode

and is limited by the storage capacity of the VS120 processing unit.

• Increasing the number of models in the model set, increases beyond proportion the

processing time by several seconds.

• Up to 40 trained models can be added to each model set.

• The option of integrating several models in a single model set can be enabled in Options

> Extras > Use Multimodel.

Note Exposure Control Model Set

The settings for the model with the lowest model number always apply for setting the exposure of a model set.

Note Error messages

The following error messages can occur in processing mode for the model sets:

• One of the models in the model set has not yet been trained.

• A model set contains models with different precision (important in this respect: only

the precision value of the parameter counts, in other words, all models must be either "Fine" or "Coarse").

• The model set contains too many models that are too large so that there is not enough storage space.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-19

Image processing

4.10 Model sets

Example

The model set consists of two models. You need to decide if the image to be processed contains the "SIEMENS" model or the "COMPANY" model.

"SIEMENS" model "COMPANY" model

• The user selects this model set instead of the model in processing mode. Each captured image is evaluated in comparison to the individual models in the model set.

• The first captured image contains the "SIEMENS" specimen. The contours of the specimen match those in the "SIEMENS“ model, but deviate strongly from the contours of the "COMPANY“ model. The VS120 processing unit delivers the result, OK, and the number of the "SIEMENS“ model.

Vision Sensor SIMATIC VS120

4-20 Operating Instructions, Edition 02/2006, A5E00757507-01

Image processing

4.10 Model sets

• The next captured image contains the "COMPANY" specimen. The contours of the

specimen match those in the "COMPANY“ model, but deviate strongly from the contours of the "SIEMENS“ model. The VS120 processing unit delivers the result, OK, and the number of the "COMPANY“ model.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

4-21

Image processing

4.10 Model sets

Vision Sensor SIMATIC VS120

4-22 Operating Instructions, Edition 02/2006, A5E00757507-01

Network and system integration

5.1 5.1 Overview

The SIMATIC VS120 system can be configured as follows for the acquisition and processing of recognition values:

• System configuration with digital I/O

• PROFIBUS DP environment

• PROFINET IO environment

• System configuration Ethernet (TCP / IP) or RS-232, for example, via Com server

Note Other combinations of modes are permitted, for example, control via PROFIBUS DP and

result output via RS-232.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

5-1

Network and system integration

5.2 System configuration over digital I/O

5.2 5.2 System configuration over digital I/O

Acquisition and output of recognition values via digital I/O

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System features:

• A PC/PG dedicated to adjustment is connected via the Ethernet port.

• The connection to an automation system is established via digital I/Os.

• The SIMATIC VS120 is controlled by the automation system via digital I/Os.

• The OK or N_OK results of the specimen are passed to the automation system via

digital I/Os.

Vision Sensor SIMATIC VS120

5-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Network and system integration

5.3 PROFIBUS DP system configuration

5.3 5.3 PROFIBUS DP system configuration

Acquisition and output of recognition values in a PROFIBUS DP environment

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Figure 5-2 System configuration with PROFIBUS DP

System features:

• A PC/PG dedicated to adjustment is connected via the Ethernet port.

• The connection to an automation system is established via PROFIBUS DP.

• The SIMATIC VS120 is controlled by the automation system via PROFIBUS DP.

• The results from the specimen are output to the automation system via PROFIBUS DP.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

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5-3

Network and system integration

5.4 PROFINET IO system configuration

5.4 5.4 PROFINET IO system configuration

Acquisition and output of recognition values in a PROFINET IO environment

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Figure 5-3 System configuration with PROFINET IO

System features:

• A PC / PG dedicated to adjustment is connected via the Ethernet (TCP/IP) and a switch.

• There is also a connection to a PROFINET IO compliant automation system via Ethernet

and a switch.

• The SIMATIC VS120 is controlled by the automation system.

• The results from the specimen are output to the automation system via PROFINET IO.

Vision Sensor SIMATIC VS120

5-4 Operating Instructions, Edition 02/2006, A5E00757507-01

Network and system integration

5.5 System configuration with Ethernet or RS-232 over Com server

5.5 5.5 System configuration with Ethernet or RS-232 over Com server

Acquisition and output of recognition values with Ethernet (TCP / IP)

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Figure 5-4 System configuration with Ethernet (TCP/IP)

System features:

• The PC / PG for adjustment support is connected to the processing unit via a network.

• The SIMATIC VS120 is controlled by the HMI.

• The results from the specimen are output to the HMI.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

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5-5

Network and system integration

5.5 System configuration with Ethernet or RS-232 over Com server

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Figure 5-5 System configuration with RS-232 via Com server

System features:

• The PC / PG for adjustment support is connected to the processing unit via a network.

• The results are output to the HMI via the RS-232 port of the Com server, for example

W&T.

Vision Sensor SIMATIC VS120

5-6 Operating Instructions, Edition 02/2006, A5E00757507-01

Installation

6.1 6.1 Installing the SIMATIC VS120 processing unit

1. For the location of the fixing holes, refer to the

VS120 Processing Unit

2. Mount the processing unit so that it is easily accessible for the operator

6.2 6.2 Installing the sensor head with LED ring flash

Notice Aligning the optical axis

Align the optical axis of the sensor head vertical to the direction in which the object is conveyed. Otherwise the image of the object will be distorted. The evaluation will be inaccurate.

If the objects always pass the sensor head in the same position, the angle of the mid axis of the objects to the vertical can be up to 45°.

Dimensional Drawing of the SIMATIC

Notice Distance D between sensor and object

The ideal distance D between sensor and object depends on the type of sensor head. With sensor heads with the order numbers (MLFB) below, the recommended distance D is as follows:

• 6GF2 002-8DA01: 100 mm

• 6GF2 002-8EA01: 90 mm

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

6-1

Installation

6.2 Installing the sensor head with LED ring flash

There are two possible ways to install the LED ring flash:

• LED ring flash on the sensor head, parallel to the optical axis of the sensor head

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Figure 6-1 Components

How to mount the LED ring flash on the sensor head

The LED ring flash is supplied with two mounting brackets to allow it to be mounted on the sensor head.

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1. Screw the mounting bracket onto the LED ring sensor

2. Push the sensor head through the LED ring sensor

3. Guide the mounting brackets into the grooves of the sensor head

4. Secure the mounting bracket with screws.

Vision Sensor SIMATIC VS120

6-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Installation

6.2 Installing the sensor head with LED ring flash

How to mount the sensor head

A mounting plate is supplied with the sensor head.

1. Insert the mounting plate in one of the grooves of the sensor head

2. Secure the sensor to your holder with a mounting plate

How to mount the LED ring flash beside the sensor head

No ring light flash is supplied to secure the LED ring flash beside the sensor head For ordering information on a suitable ring flash holder, refer to the section

Accessories

in the

operating instructions.

1. Mount the sensor head on your holder

2. Secure the LED ring flash to the ring flash holder

3. Secure the ring light holder to your holder

• LED ring flash beside the sensor head, at an angle to the optical axis of the sensor head

Notice LED ring flash beside the sensor head

If the object causes interfering reflections when the LED ring flash is mounted on the sensor head, mount the LED ring flash beside the sensor head.

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Figure 6-2 Components with ring light

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Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

6-3

Installation

6.2 Installing the sensor head with LED ring flash

Vision Sensor SIMATIC VS120

6-4 Operating Instructions, Edition 02/2006, A5E00757507-01

Connecting

7.1 7.1 Guidelines on installation and avoiding electrical interference

To avoid interference, you must shield your system. Low-frequency (LF) and high-frequency (HF) interference signals can result in an incorrect response if the system is badly grounded or not shielded.

Interference signals can be caused, for example, by

• Switching relays or contactors (large, fast changes in current or voltage and HF

interference signals);

• Different ground potentials between two parts of the system (LF interference signals)

Using / installing interference-proof cable

• Always use the supplied cable to connect the sensor head.

• All plug-in connections must be secured by screws or a locking mechanism.

• Signal lines must not run parallel to power cables. A separate cable channel must be

used with a minimum clearance of 50 cm from power cables.

Note For more detailed information, refer to the installation manual SIMATIC S7-300

Programmable Controller, Hardware and Installation in the section on "Wiring".

7.2 7.2 Guidelines on installation when using PROFIBUS DP or PROFINET IO

If you are using PROFIBUS DP or PROFINET I/O to control the device and/or to transfer the results the installation and configuration guidelines must be kept to.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

7-1

Connecting

7.3 Connecting components

7.3 7.3 Connecting components

Connect the processing unit with the other components using the connectors on the front panel.

The pinning of the connectors is described in the section: "Technical specifications" and with the description of the supplied cable in section: "Scope of delivery/Spares/Accessories".

Caution Do not connect or disconnect cables when the power supply is on.

Warning Grounding the SIMATIC VS120 cancels the ungrounded configuration of the power unit.

Note The DC load power supply must meet the following requirements: Only a safe, isolated extra-low voltage of 24 V DC may be used as the load current supply.

Safe isolation can be implemented according to the requirements of:

- VDE 0100-410 / HD 384-4-41 S2 / IEC 60364-4-41 as protective extra low voltage with

safe isolation (PELV) or

- VDE 0805 / EN 60950 / IEC 60950 as safety extra-low voltage (SELV) or VDE 0106

Part 101. The power supply chassis of the I/O and CPU must be connected to the power supply

chassis of the processing unit.

Vision Sensor SIMATIC VS120

7-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Connecting

7.3 Connecting components

Figure 7-1 Locations of the connection element

Wiring Connector label Type Number

of pins

Functional earth

Power supply IN 24 V DC Circular M12

Lighting unit LAMP Circular M12

Sensor head (shielded cable)

I/O DI/DO D-sub 15 0.14 mm2 Socket PROFIBUS DP DP D-sub 9 - Socket Ethernet ETHERNET RJ45 8 - Socket

SENSOR HD D-sub 26 0.09 mm2 Socket

Screw-type terminal

connector

1 1.5 mm

4 0.56 mm2 Pin

4 0.23 mm2 Socket

Cable cross section

Stranded

Type

conductor

Cable connection

• Read the guidelines on preventing electrical interference.

• Connect the processing unit to the sensor head and the lighting unit with the cables.

• Connect functional ground of the processing unit with chassis with a ring ∅ M5 and a

cable cross section of at least 1.5 mm

• Connect the processing unit to the 24 V DC load power supply with I = 2 A.

• Connect the PC/PG to the processing unit using an Ethernet cable.

• Arrange the cabling according to your configuration.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

7-3

Connecting

7.3 Connecting components

Vision Sensor SIMATIC VS120

7-4 Operating Instructions, Edition 02/2006, A5E00757507-01

Commissioning

8.1 8.1 Prerequisites

Notice All activities are described based on the classic Windows Start menu. If your Windows Start menu is not displayed in the classic style, change it as follows:

1. Right-click on the taskbar and select "Properties".

2. Change to the "Start Menu" tab and select the "Classic Start Menu" radio button.

3. Click "OK" to close the dialog box.

Requirements for commissioning:

• Administrator privileges

• Enabled JAVA JIT Compiler

Checking for administrator privileges

1. Click Start > Settings > Control Panel > Administrative Tools > Computer Management

2. Click on System > Local Users and Groups > Groups > Administrators If you are included in the group of administrators, you have administrator privileges.

Otherwise contact your network administrator.

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

8-1

Commissioning

8.2 Overview of the steps in commissioning

Enabling the JAVA JIT compiler

1. Select Tools > Internet Options in the Internet Explorer and make the settings as shown in the figure below:

Figure 8-1 Settings for the Java JIT compiler

8.2 8.2 Overview of the steps in commissioning

Step Activity 1 Turn on the VS120 processing unit 2

3 Establish and check the connections 4 Start adjustment support over the Internet Explorer 5 Adjust the sensor head using adjustment support

Establish an Ethernet connection between the VS120 processing unit and PG / PC:

2.1 Select the connection variant

2.2 Check if a proxy server is being used

2.3 If a proxy server is being used: Change the proxy configuration of your Internet Explorer

Vision Sensor SIMATIC VS120

8-2 Operating Instructions, Edition 02/2006, A5E00757507-01

Commissioning

8.3 Turn on the VS120 processing unit

8.3 8.3 Turn on the VS120 processing unit

Initial commissioning:

Turn on the power supply of the VS120 processing unit for its initial commissioning. The VS120 processing unit then performs a self-test:

• Test of the Ethernet connection

• Function test of the sensor head

Note During the initial commissioning, "Factory Settings Used" appears on the LCD display.

Confirm this with "OK.“

Once the self-test is completed, "Adjust" appears on the LCD display.

Normal mode:

Each time the SIMATIC VS120 starts up, the VS120 processing unit runs the following selftest:

• Test of the stored settings and model data

• Test of the Ethernet connection

• If appropriate, test of the connection to PROFINET IO

• If appropriate, test of the Ethernet RS-232 converter or TCP server and connection to the

PC / PG

• If appropriate, test of whether data can be exchanged with PROFIBUS DP

• Function test of the sensor head

• If appropriate, test of the connection for archiving model data

If the self-test completes without any errors, the main menu, the "Adjust" display or the RUN menu is displayed on the LCD display depending on the status when the device was last turned off.

• "Main" menu:

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Commissioning

8.3 Turn on the VS120 processing unit

• "Adjust" displayed on the LCD display:

• "RUN" menu:

Note Apart from controlling from the VS120 processing unit, you can also control

SIMATIC VS120 with the adjustment support.

Next step

Perform the activities described in the section

VS120 processing unit and PC / PG

Establish an Ethernet connection between the

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Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4 8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.1 Select the connection variant

8.4.1.1 Connection variants

You can connect the VS120 processing unit via a direct connection or via a network with a PC / PG. In all cases, the TCP/IP Ethernet protocol is used for communication.

Direct connection

• Operating the VS120 processing unit as a DHCP server

• Connecting the VS120 processing unit manually

Connection over a network

• Integrating the VS120 processing unit as a DHCP client in a network

• Integrating the VS120 processing unit as a device in a PROFINET IO network

Next step

Notice Operating the VS120 processing unit in a network can interfere with the communication

in your network if you make certain settings in the Connect > Ports > Ethernet > IP Mode menu. You should therefore only connect the VS120 processing unit to the network after you have completed configuration and checked your settings carefully.

Select one of the connection variants from the next sections.

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Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.1.2 Operating the VS120 processing unit as a DHCP server

You want to do the following with the VS120 processing unit:

• Connect directly to the PC / PG

• Operate the VS120 processing unit as a DHCP server to assign the following addresses

of the processing unit automatically:

– IP address – DNS server address

Notice Under no circumstances connect the VS120 processing unit in this mode to an

existing DHCP server in the house network over a switch as you may disrupt the operation of the house network. You can only implement an additional connection from the PC to your previous network over a second network adapter in this PC.

Note In this mode, you can connect up to four PCs to the VS120 processing unit via a

switch since a maximum of four IP addresses can be assigned automatically.

Procedure

1. Configure the VS120 processing unit as a DHCP server.

2. Configure your PC / PG as a DHCP client

3. Establish an Ethernet connection

Step 1: Configuring the VS120 processing unit as a DHCP server

1. After turning on the VS120 processing unit and after the self-test is completed, go to the "Connect" menu and confirm with "OK".

2. Confirm the selected "Ports" menu command with "OK".

3. Change to the "Ethernet" menu and confirm with "OK"

4. Confirm the selected "IP Mode" menu command with "OK".

5. Select "DHCPSERV" and confirm with "OK"

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8.4 Establish an Ethernet connection between the processing unit and PG / PC

Step 2: Configure your PC / PG as a DHCP client

1. Click Start > Settings > Network and Dial-up Connections

2. In the "Network and Dial-up Connections" dialog, select your active local area connection

to the network

3. Select "Properties" in the context menu and select the "Internet Protocol (TCP/IP)" entry.

4. Click the "Properties" button

5. Select the "Obtain an IP address automatically" radio button

Step 3: Establish the Ethernet connection

1. Establish an Ethernet connection between the VS120 processing unit and PC / PG. Use

a network cable of the type "Ethernet RJ-45 (crossover)"

Note Instead of the network cable of the type "Ethernet RJ-45 (crossover)", you can also use a

network cable of the type "Ethernet RJ-45" with a switch for the connection between the VS120 processing unit and the PC / PG.

Next step

Perform the activities described in the section

8.4.1.3 Connecting the VS120 processing unit manually

You want to do the following with the VS120 processing unit:

• Connect directly to the PC / PG

• Configure manually to change the IP address of the VS120 processing unit or to assign

an address yourself

Requirements

The PC / PG has the following default network setting that it cannot/should not be modified: In the "Internet Protocol (TCP/IP) Properties" dialog, the "Use the following IP address" radio button is selected.

You can check the setting by following the steps described in the section "Procedure for checking the IP setting of the PC / PG".

Procedure

1. Check the IP setting of the PC / PG

Check the connection

2. Configure the VS120 processing unit manually

3. Establish an Ethernet connection

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Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

Step 1: Checking the IP setting of the PC / PG

1. Click Start > Settings > Network and Dial-up Connections

2. In the "Network and Dial-up Connections" dialog, select your active local area connection to the network

3. Select "Properties" in the context menu and select the "Internet Protocol (TCP/IP)" entry.

4. Click the "Properties" button

5. Note down the displayed IP address and subnet mask of your PC / PG.

Step 2: Manual configuration of the VS120 processing unit

Notice

• The IP address of the VS120 processing unit must be in the same subnet as the IP address of the PC.

• The default gateway is not necessary for a direct connection between the VS120 processing unit and a PC / PG

1. After turning on the VS120 processing unit and after the self-test is completed, go to the "Connect" menu and confirm with "OK".

2. Confirm the selected "Ports" menu command with "OK".

3. Change to the "Ethernet" menu and confirm with "OK"

4. Confirm the selected "IP Mode" menu command with "OK".

5. Select "Manual" and confirm with "OK"

6. Change to the "IP Address" menu and confirm with "OK"

7. Now enter the IP address of the VS120 processing unit with the arrow keys and confirm with "OK".

8. Change to the "IP Mask" menu and confirm with "OK"

9. Enter the subnet mask with the arrow keys and confirm with "OK"

Step 3: Establish the Ethernet connection

1. Establish an Ethernet connection between the VS120 processing unit and PC / PG. Use a network cable of the type "Ethernet RJ-45 (crossover)"

Next step

Perform the activities described in the section

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Check the connection

Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.1.4 Integrating the VS120 processing unit as a DHCP client in a network

You want to do the following with the VS120 processing unit:

• Connect to the PC / PG over your existing network

• Operate as a DHCP client because the IP address configurations are assigned to the

PCs in the existing network by a DHCP server

Notice Depending on your network structure, it may be necessary to inform the DHCP server of

the MAC address, the unique device identifier of the VS120 processing unit. You can see these in the Connect > Ports > Ethernet > MAC Info menu.

Note If your network administrator can assign a DNS name (Domain Name Service) for the

VS120 processing unit, you can address the device by name in much the same way as an intranet server.

Procedure

1. Configure the VS120 processing unit as a DHCP client

2. Configure your PC as a DHCP client

3. Establish an Ethernet connection

Step 1: Configuring the VS120 processing unit as a DHCP client

1. After turning on the VS120 processing unit and after the self-test is completed, go to the

"Connect" menu and confirm with "OK".

2. Confirm the selected "Ports" menu command with "OK".

3. Change to the "Ethernet" menu and confirm with "OK"

4. Confirm the selected "IP Mode" menu command with "OK".

5. Select "DHCP" and confirm with "OK"

Step 2: Configuring your PC as a DHCP client

1. Click Start > Settings > Network and Dial-up Connections

2. In the "Network and Dial-up Connections" dialog, select your active local area connection

to the network

3. Select "Properties" in the context menu and select the "Internet Protocol (TCP/IP)" entry.

4. Click the "Properties" button

5. Select the "Obtain an IP address automatically" radio button

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Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

Step 3: Establish the Ethernet connection

1. Establish an Ethernet connection between your PC and your existing network. Use a network cable of the type "Ethernet RJ-45"

2. Establish an Ethernet connection between the VS120 processing unit and your existing network. Use a network cable of the type "Ethernet RJ-45"

Next step

Follow the steps described in the section

Check whether a proxy server is being used

8.4.1.5 Integrating the VS120 processing unit as a device in a PROFINET IO network

You want to do the following with the VS120 processing unit:

• Connect to the PC / PG over your existing PROFINET IO network

• Integrate the unit as a device in a PROFINET IO network because the IP configuration

will be assigned by the PROFINET IO controller

Notice The IP configuration of the VS120 processing unit is set in STEP 7. It is not possible to

set the parameters on the VS120 processing unit.

Procedure

1. Configure the VS120 processing unit as a PROFINET IO device

2. Make the parameter settings for the IP configuration of the VS120 processing unit in STEP 7.

3. Integrate your PC in the PROFINET IO network

4. Establish an Ethernet connection

Step 1: Configuring the VS120 processing unit as a PROFINET IO device

1. After turning on the VS120 processing unit and after the self-test is completed, go to the "Connect" menu and confirm with "OK".

2. Confirm the selected "Ports" menu command with "OK".

3. Change to the "Ethernet" menu and confirm with "OK"

4. Confirm the selected "IP Mode" menu command with "OK".

5. Select "PNIO" and confirm with "OK"

Note The VS120 processing reboots after the IP mode is changed to "PNIO".

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8.4 Establish an Ethernet connection between the processing unit and PG / PC

Step 2: Setting the parameters for the IP configuration of the VS120 processing unit in STEP 7

For a description, refer to the section:

in HW Config

Integrating the PROFINET IO device SIMATIC VS120

Step 3: Integrating your PC in the PROFINET IO network

Notice

• The network attachment must not have an IP address that is already being used in your

network

• The IP address of the PC must be in the same subnet as the IP address of the VS120

processing unit. If necessary, the port configuration of the PC must be adapted

1. Click Start > Settings > Network and Dial-up Connections

2. In the "Network and Dial-up Connections" dialog, select the existing local area connection

to the network. This must have the status "Enabled".

3. Select "Properties" in the context menu and select the "Internet Protocol (TCP/IP)" entry.

4. Click the "Properties" button

5. Select the "Use the following IP address" radio button

6. Adapt the "IP address" and "Subnet mask" to your PROFINET IO network

Step 4: Establish the Ethernet connection

1. Establish an Ethernet connection between your PC and a switch in your existing

PROFINET IO network. Use a network cable of the type "Ethernet RJ-45"

2. Establish an Ethernet connection between the VS120 processing unit and your existing

network. Use a network cable of the type "Ethernet RJ-45"

Next step

Follow the steps described in the section

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Check whether a proxy server is being used

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Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.2 Check whether a proxy server is being used

If the VS120 processing unit is used in a network with proxy servers, the following problems can occur:

• The address entered for the VS120 processing unit is not known to the Internet Explorer

• Error message when starting adjustment support

You should therefore check whether or not a proxy server is entered in the "Local Area Network (LAN) Settings" dialog of the Internet Explorer.

Procedure

1. Start the Internet Explorer and select the menu command Tools > Internet Options...

2. Click on the "Connections" tab

3. Click on the "LAN Settings" button in the "Local Area Network (LAN) settings" group box.

4. If the "Use a proxy server" check box is selected in the "Proxy server" group box, a proxy server is used and the "Advanced" button is enabled.

Result

Next step

A proxy server is used in the Internet Explorer if one of the following conditions is met:

• The "Use a proxy server for your LAN" check box is enabled in the "Proxy server" group box

• The "Advanced" button is enabled.

• Follow the steps described in the section

Explorer

• If no proxy server is used in the Internet Explorer, skip to the steps described in the section

only if a proxy server is used in the Internet Explorer

Check the connection

Change the proxy configuration of your Internet

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8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.3 Change the proxy configuration of your Internet Explorer

Change the proxy configuration of your Internet Explorer only if a proxy server is used in the Internet Explorer.

Procedure

1. Start the Internet Explorer and select the menu command Options > Internet Options

2. Click on the "Connections" tab

3. Click on the "LAN Settings" button in the "Local Area Network (LAN) settings" group box.

4. In the next dialog "Local Area Network (LAN) Settings", clear all the check boxes and

confirm with OK

Figure 8-2 Settings for the local area network

As an alternative, if the "Use a proxy server for your LAN" check box needs to be selected, click the "Advanced" button in the "Proxy server" area and enter the current IP address of the VS120 processing unit in the "Exceptions" area in the "Proxy Settings" dialog.

Next step

Vision Sensor SIMATIC VS120 Operating Instructions, Edition 02/2006, A5E00757507-01

Note You can also enter computer names in the "Exceptions" area. The computer name is

resolved into a static or dynamic IP address by the DNS server in the network.

Perform the activities described in the section

Check the connection

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Commissioning

8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.4 Check the connection

Checking the connection tells you whether or not the configured Ethernet connection between the PC and the VS120 processing unit is working.

You can only start adjustment support from your Internet Explorer and operate the VS120 processing unit from your PC after you have checked the connection.

Requirements

• The VS120 processing unit was either integrated in your existing network or connected directly to a PC

• The network cable is connected to the VS120 processing unit

• The VS120 processing unit is connected to a 24 V DC power supply unit and is being

supplied with power

• The VS120 processing unit self-test is completed

Procedure

1. Make sure that the VS120 processing unit and PC are correctly connected to the existing network or are connected together using an Ethernet crossover cable

Result

2. After turning on the VS120 processing unit and after the self-test is completed, go to the "Connect" menu and confirm with "OK".

3. Confirm the selected "Ports" menu command with "OK".

4. Change to the "Ethernet" menu and confirm with "OK"

5. Change to the "IP Address" menu and confirm with "OK"

6. Note down the IP address displayed on the VS120 processing unit

7. Open the command prompt on the PC with Start > Run and enter the program name "cmd".

8. In the command prompt, enter the following: ping <IP address or name of the VS120 processing unit> Example: ping 192.168.0.42

9. Confirm your entry by pressing the enter key on the keyboard

If the connection from the PC to the VS120 processing unit exists, 4 packets are first sent from the PC to the processing unit as shown above and then 4 packets are returned from the VS120 processing unit to the PC.

The reply from the VS120 processing unit appears on the PC, for example, as follows: Reply from 192.168.0.2 bytes=32 time<10ms TTL=255

Reply from 192.168.0.2 bytes=32 time<10ms TTL=255 Reply from 192.168.0.2 bytes=32 time<10ms TTL=255 Reply from 192.168.0.2 bytes=32 time<10ms TTL=255

This is followed by the ping statistics for 192.168.0.2.

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8.5 Start setup support over the Internet Explorer

Next step

• If you receive a reply from the VS120 processing unit on the PC, follow the steps

described in the section

• If you do not receive a reply from the VS120 processing unit, repeat the steps described

in the section and/or contact your network administrator

Establish connection and between VS120 processing unit and PG / PG

Start adjustment support over the Internet Explorer

8.5 8.5 Start setup support over the Internet Explorer

To be able to work with the adjustment support implemented on the VS120 processing unit, establish a connection from the Internet Explorer to the adjustment support

Requirements

The section completed successfully. As described in the section established a confirmed connection from the VS120 processing unit to the PC / PG.

Establishing a connection between the VS120 processing unit and PC / PG

Check the connection

, you have

was

Procedure

1. Start the PC

2. Turn on the power supply of the VS120 processing unit. Once the self-test has

completed, go to "Adjust" in the LSD display

3. Press the OK button of the VS120 processing unit. The IP address appears on the LCD

display

4. Note down the IP address of the VS120 processing unit

5. Start the Internet Explorer

6. In the "IP address" input box, enter the IP address of the VS120 processing unit.

7. Press the enter key on the keypad

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8.5 Start setup support over the Internet Explorer

Result

The start page of the "Vision Sensor SIMATIC VS120" adjustment support appears in the Internet Explorer. From here, you have access to all functions required to test the models.

Figure 8-3 Home

The adjustment support is started with "Adjust Sensor". The SIMATIC VS120 then automatically blocks operator input at the VS120 processing unit. The LCD display of the VS120 processing unit displays the message: "Settings controlled by Web".

Next step

Follow the steps described in the section

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Adjust the sensor head using adjustment support

Commissioning

8.6 Adjust the sensor head using setup support

8.6 8.6 Adjust the sensor head using setup support

Before you commission the "SIMATIC VS120 Vision Sensor", you must adjust the sensor head correctly You do this with the "SIMATIC VS120 Vision Sensor" adjustment support that is available in the Internet Explorer. The adjustment support shows you an image as seen by the sensor head.

Requirements

Procedure

Note Online Help

At the bottom right of each page of adjustment support, you will see a “Help” button with which you can call up online help at any time. The relevant help text of the online help opens depending on the currently open dialog.

The Start Page of the "SIMATIC VS120 Vision Sensor" adjustment support was started over the Internet Explorer

1. On the start page of the adjustment support, click on "Sensor Adjustment". The

"Adjustment" user interface opens. The sensor head view is displayed and updated several times per second.

Figure 8-4 Adjustment

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Commissioning

8.6 Adjust the sensor head using setup support

2. Position an object below the sensor head

3. Set the displayed image to that it is sharp by adjusting the distance between the end of the sensor head and the model correctly

4. Secure the sensor head and then check the image sharpness again

5. Make sure that the triggering is exact and the content of the image has as much contrast as possible

If necessary, correct the settings or use the automatic shutter mode. You can set the following parameters:

– Exposure settings – Trigger settings – Precision – Distortion

Notice If Shutter is set to Auto, the model must remain fully in the image for at least 100 ms.

Result

6. Click the "Apply" button to save the settings.

Note If you have too many errors, clean the lens and diffuser with a lint-free cloth.

You have successfully commissioned "SIMATIC VS120 Vision Sensor". You can now train and process your models for your application. Refer to the section information.

Operation

for more

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Operation

9.1 9.1 Overview

There are two ways of operating the SIMATIC VS120:

• From the VS120 processing unit, see the section:

unit

• Using adjustment support See the section

You can set and change all parameter settings with adjustment support on the PC. Configuration on the VS120 processing unit itself is limited.

9.2 9.2 Working with the processing unit

9.2.1 Introduction

Working with the VS120 processing

Working with adjustment support on the PC

The display of the VS120 processing unit is used to show the coordinates and the orientation of the test object currently being viewed and the associated quality value. You can also navigate between the menus and make entries in the LCD display.

Example of an LCD display:

M 01 RUN N X=−299.0 Y=0.0 ↓ OK:Info

Five levels are implemented as selection menus or displays:

• Adjust

• Connect

• RUN

• Options

• Maintain

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9-1

Operation

9.2 Working with the processing unit

9.2.2 Adjust

"Adjust" display

The Adjust LCD display displays the current IP address.

9.2.3 Connect

"Connect" menu

The following schematics provide you with an overview of all the parameters of the SIMATIC VS120 that can be set in the Connect menu.

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Operation

9.2 Working with the processing unit

Figure 9-1 Structure of the Connect menu

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9-3

Operation

9.2 Working with the processing unit

Figure 9-2 Structure of the Connect menu continued

"Connect" parameter menu

Parameters Port

Pulsetime Ports>DI/DO 5 to 999 30 Pulse time of the digital outputs OK,

Address (not active if IP Mode = PNIO)

Timeout (not active if IP

Mode = PNIO) Pulsetime

(not active if IP Mode = PNIO)

DevName (only active if IP Mode = PNIO)

Timeout (only active if IP Mode = PNIO)

Pulsetime (only active if IP Mode = PNIO)

IP mode Ports>Ethernet Assignment of the IP address to the

Path Possible Values Default Meaning

N_OK in ms on the DI/DO interface

Ports>DP 1 to 125 7 Address on PROFIBUS DP

Ports>DP 100 to 2000 500 Handshake monitoring time in ms

Ports>DP 5 to 999 30 Pulse time of the digital outputs OK,

N_OK in ms when output is via PROFIBUS DP

Ports>PNIO String (0 to 9, A to

Z, a to z, ".", "-"). The string must match the conventions of the domain name system.

Ports>PNIO 100 to 2000 500 Handshake monitoring time in ms

Ports>PNIO 5 to 999 30 Pulse time of the digital outputs OK,

VS120 Name of the device on PROFINET

Note: PROFINET is not case sensitive

N_OK in ms when output is via PROFINET IO

Note: For the pulse time, select a higher value than for the update time of the PROFINET IO system in HW Config.

processing unit in the network.

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Operation

9.2 Working with the processing unit

Parameters Port

IP Address Ports>Ethernet xxx.xxx.xxx.xxx

IP Mask (not active if IP Mode = DHCP)

Gateway (not active if IP Mode = DHCP)

MAC Info Ports>Ethernet Cannot be

IP Address Ports>

IP port Ports>

Timeout Ports>

Path Possible Values Default Meaning

(xxx = 0 to 255)

Ports>Ethernet xxx.xxx.xxx.xxx

(xxx = 0 to 255) except:

0.0.0.0

255.255.255.255

Ports>Ethernet xxx.xxx.xxx.xxx

(xxx=0 to 255)

modified

xxx.xxx.xxx.xxx

TCP/RS232

(xxx=0 to 255)

1 to 65535 8000 IP port of the Ethernet RS-232 converter

0 to 3600 0

192.168.0.42 IP address of the processing unit (An IP address consists of four numbers

separated by periods with each number being in a range from 0 to 255.)

255.255.255.0 The subnet mask indicates which part of the IP address specifies the network and which part specifies the VS120 processing unit:

For xxx.xxx.xxx.xxx, binary requires that the left part be made up of ones without a gap and the right part be made up of zeros without a gap. Example:

11111111.10100000 is not permitted.

192.168.0.255 IP address of the network node that can establish connections outside of the current subnet

Device-dependent The MAC address (Media Access

Control) is the hardware address of each network device and is used to identify the device uniquely in the network.

192.168.0.43 IP address of the Ethernet RS-232 converter or of the PC/PG on which a TCP server runs.

or of the PC/PG on which a TCP server runs.

• 0: There is no transfer of cyclic

monitoring frames to determine whether the connection still exists between the processing unit and the Ethernet RS-232 converter or the PC/PG on which a TCP server runs.

• Otherwise: Time in seconds after

which a monitoring frame is sent to determine whether the connection still exists between the processing unit and the Ethernet RS-232 converter or the PC/PG on which a TCP server runs. The check is implemented by sending the "Idling string" ("IdleStr." menu) to the recipient at the intervals set with the parameter. If the check fails, an error is output (only when the processing unit is in RUN) and the connection is reestablished.

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9-5

Operation

9.2 Working with the processing unit

Parameters Port

IdleStr. Ports>

IP Address Ports>

Port Ports>

Timeout Ports>

Path Possible Values Default Meaning

TCP/RS232

9.2.4 RUN

RUN menu

The following table shows the menus of the RUN menu level.

Menu Meaning Model Select the model number

Note:

May also be model set depending on the configuration. STOP Stop processing and change to the STOP menu level QLimit Enter the quality value for the evaluation as a percentage.

Note:

The display is only visible if you are not working with model sets. Info Information function ResetStat Resets all statistical information.

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Operation

9.2 Working with the processing unit

Structure of the Info display for a model from the RUN menu

STOP

−Limit

Q >Info ESC ↓↑ OK

M 02 OK =0 =0.000% 1/14 ↓ OK

M 02 WARN =0 =0.000% 2/14  OK

M 02 N_OK =0 =0.000% 3/14  OK

M 02 Curr. Cycletime =0ms 4/14  OK

M 02 Cycle min=0.0ms max=0.0ms 5/14  OK

M 02 Trig. Too Fast =0 6/14  → OK

M 02 Trig. Too Fast =0.000% 6/14 ←  OK

M 02 Angle min=0.0 max=0.0 10/14  OK

M 02 ROI Pos cx=96 cy=94 11/14  OK

M 02 ROI Dim width=310 height=298 12/14  OK

DHCP−IP:

141.73.

11.117 13/14 ↑ OK

Transient Errors =1 14/14 ↑ OK

M 02 Qual. min=0.0% max=0.0% 7/14  OK

M 02 X−Pos min=0.0 max=0.0 8/14  OK

M 02 Y−Pos min=0.0 max=0.0 9/14  OK

Figure 9-3 Info display for a model from the RUN menu

Note "Transient Errors", the last menu command in the RUN menu, only appears when an error

occurs.

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Operation

9.2 Working with the processing unit

Sequence of tasks in the RUN menu for a model based on the example of a model with number 2:

Step Display Activity 1

STOP Q−Limit > Info

Select "Info" on the processing unit at the "RUN" menu level using the ⇓ and ⇑ arrow keys and press "OK". This opens the first Into screen.

ESC ↓↑ OK

M 02 OK =3226 =99.907%

Using the arrow buttons ⇓ and ⇑, you can display further Info screens. Pressing "OK" returns you to the highest hierarchy level of the "RUN" menu.

1/14 ↓ OK

Step Display Meaning 1

M 02 OK =3226 =99.907% 1/14 ↓ OK

Since the last processing start, the pattern search for model 2 was performed successfully in 3226 image recordings. This corresponds to 99.907% of all images processed since processing last started.

M 02 WARN =6 =0.194%

6 examinations were below the warning limit since the last start of processing. This corresponds to 0.194 % of all images processed since processing last started.

2/14  OK

M 02 N_OK =3 =0.093%

3 specimens could not be identified as model 2 since processing started. This corresponds to 0.093 % of all images processed since processing last started.

3/14  OK

M 02 Curr. Cycletime

The required processing time (cycle time) for the specimen currently under examination is 300 ms.

=300ms 4/14  OK

M 02 Cycle min=120ms

Since the beginning of the statistical analysis for model 02, the shortest evaluation time was 120 ms and the longest 276 ms.

max=276ms 5/14  OK

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Operation

9.2 Working with the processing unit

Step Display Meaning 6

M 02 Trig. Too Fast =0 6/14 ←  OK

M 02 Qual. min=85%

M 02 Trig. Too Fast =0.000%

Absolute and relative number of image processing procedures during which the next trigger signal came too fast

6/14 ←  OK

Since the beginning of the statistical analysis for the model 02, the lowest quality value was 85% and the highest 99%.

max=99% 7/14  OK

M 02 X−Pos min=−222 max=233

Since the beginning of the statistical analysis for model 02, the lowest x coordinate of the target rectangle was -222 and the highest 233.

8/14  OK

M 02 Y−Pos min=−14 max=89

Since the beginning of the statistical analysis for model 02, the lowest y coordinate of the target rectangle was -14 and the highest

89.

9/14  OK

M 02 Angle min=−120.1

Since the beginning of the statistical analysis for the model 02, the lowest roll angel was -120.1° and the highest 179.3°.

max=179.3 10/14  OK

M 02 ROI Pos cx=−2

For model 02, the midpoint of the target rectangle has the following coordinates: x=-2, y=4

cy=4 11/14  OK

M 02 ROI Dim width=101

For model 02, the target rectangle has the following dimensions: Width=101, Height=102

height=102 12/14  OK

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Operation

9.2 Working with the processing unit

Step Display Meaning 13

ManuelIP:

192.168.

Display of the IP address of the processing unit in the network.

0.42 13/14  OK

Transient Errors

Connection interrupted in the PROFIBUS DP or PROFINET IO network.

=1 14/14 ↑ OK

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Operation

9.2 Working with the processing unit

Structure of the Info display for a model set from the RUN menu

STOP Q−Limit >Info ESC OK

S 02 OK =3226 =99.907% 1/8 ↓ OK

S 02 WARN =6 =0.194% 2/8  OK

S 02 N_OK =3 =0.093% 3/8  OK

S 02 Curr. Cycletime =300ms 4/8  OK

S 02 Cycle min=120ms max=276ms 5/8  OK

S 02 Trig. Too Fast =0 6/9  → OK

ManuelIP:

192.168.

0.42 7/8  OK

Transient Errors =1 8/8 ↑ OK

Figure 9-4 RUN menu for a model set

M 02 Trig. Too Fast =0.000% 6/9 ←  OK

Note "Transient Errors", the last menu command in the RUN menu, only appears when an error

occurs.

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Operation

9.2 Working with the processing unit

9.2.5 Options

Options menu

The following schematics provide you with an overview of all the parameters of the SIMATIC VS120 that can be set in the Options menu.

Figure 9-5 Structure of the options menu

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Operation

9.2 Working with the processing unit

Options parameter menu

Parameters Light

Type Light

Path Possible Values Default Meaning

• IR

• Red

• Other

Red Here, you enter the type of illumination

being used.

Parameters Diagnostics

Buffer Diagnose>

Reasons Diagnose>

Record Diagnose>

Save Next Diagnose>

Buffer Diagnose>

Save Next Diagnose>

Entries Diagnose>

Path Possible Values Default Meaning

Logging> Images

Logging> Report

Logging> Report> Permanent

• Ring

• Stack

• Trigger

• N_OK

• OK

• WARN

• Train

• Image

• +/- 1 Image:

• On

• Off

• Ring

• Stack

• On

• Off

10 to 2000 2000 Number diagnostic data records that can

Ring

N_OK This is where you specify what causes

Image

Off

Ring

Off As soon as the function is enabled, as

• Type of image buffer:·

• Ring: When the buffer contains 6

entries, entries 1,2 ... are overwritten.

• Stack: When the buffer contains 6 entries, no further entries are made.

an image to be saved.

• Image: If one or more of the causes listed above occurs, the current image is saved.

• +/- 1 Image: Not only the current image but also the previous and next image are saved.

• On: The image belonging to the next NOK event is saved permanently in the EEPROM.

• Ring: When the diagnostic buffer contains 5000 entries, entries 1,2 ... are overwritten.

• Stack: When the diagnostic buffer contains 5000 entries, no further entries are made.

many diagnostic entries as you specify in “Entries” are saved in the EEPROM. Existing entries are deleted when you switch over to On. If the diagnostic buffer in the EEPROM reaches the number of permanently storable diagnostic data records, no further entries are made.

Note: Deleting takes several seconds.

be stored on the EEPROM

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Operation

9.2 Working with the processing unit

Parameters Diagnostics

Clear Diagnose>

Timebase Diagnose>

SNTP IP (only when

Timebase= SNTP) Update Diagnose>

Path Possible Values Default Meaning

Logging> Report> Permanent

Logging

Diagnose> Logging

Monitor

- - Delete all the diagnostic entries stored on the EEPROM

Note: Deleting takes several seconds.

• PC

• SNTP

xxx.xxx.xxx.xxx (xxx=0 to 255)

• On

• Off

PC Here, you specify the source for the time

stamp of the diagnostic events.

192.168.0.44 IP address of the SNTP server

On This is where you specify if diagnostic

images, reports and a current image is to be displayed in processing mode.

• On: Display

• Off: Not displayed

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Operation

9.2 Working with the processing unit

9.2.6 Maintain

Maintain menu

The following schematics provide you with an overview of all the parameters of the SIMATIC VS120 that can be set in Maintain.

0DLQWDLQ

Figure 9-6 Structure of the Maintain menu

Maintain parameter menu

Parameters Maintain

Delete Maintain>

FactoryS Maintain>

Restart Maintain>

Path Possible Values Default Meaning

Delete

FactoryS

Restart

'HOHWH

)DFWRU\6

5HVWDUW

Model 01 to model 64

• ESC

• OK

• ESC

• OK

01 This function deletes individual models

- This function resets the VS120 processing unit to the factory settings and restarts it.

- This function restarts the VS120 processing unit.

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Operation

9.3 Working with setup support

9.3 9.3 Working with setup support

9.3.1 Introduction

Notice Possible data loss!

The editing data is lost if the Internet Explorer or the input screens are turned off without first saving the data because the application does not have session memory.

You should therefore always save your data to avoid losing it.

Note Online Help

Open the Start Page of the adjustment support in the Internet Explorer, refer to the section "Commissioning using adjustment support on the PG / PC with installed Internet Explorer".

With “Adjust Sensor”, you display the user interface of the SIMATIC VS120.

Note When you open adjustment support, the dialog that opens corresponds to the current

operating state of the VS120 processing unit. The appropriate job is activated depending on the previous operating state of the VS120 processing unit.

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Operation

9.3 Working with setup support

If, for example, the VS120 processing unit is in Stop mode, the page below opens:

Figure 9-7 Stop

In the left part of the user interface, you will see the list of jobs in the form of buttons. You activate the required job by clicking on the appropriate button. The corresponding dialog then opens on the right of the user interface. At the same time, the text of the buttons becomes bold and the font color changes to blue.

The SIMATIC VS120 Vision Sensor user interface based on the Web server, provides the following dialog boxes for processing images:

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Operation

9.3 Working with setup support

Task

• Adjustment;

• Connections;

• Train;

• Run;

• Options;

• Info;

• Management;

• Stop

Traffic Light

Below the Job buttons, there is a traffic light with which you can see the operating status of the VS120 processing unit at a glance. The traffic light can have the following states:

• Green: VS120 processing mode with results output

• Yellow: STOP including adjustment and training

• Red: Errors

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Operation

9.3 Working with setup support

Error display

If an error occurs, the traffic light changes to red and the corresponding error message, the meaning of the error and ways to eliminate the error are displayed.

You acknowledge the error by clicking the "Acknowledge" button.

Figure 9-8 Error Message

Changing the language setting

At the bottom left, you will see a drop-down list box for language selection. You can change the language setting for the entire user interface at any time.

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Operation

9.3 Working with setup support

User name

The currently logged on user, WEB for example, is shown at the upper right of the page. By clicking on the user name, you open "Options - Security tab".

The following users are possible:

• WEB (default): General user who can execute tasks without explicitly logging on

• Service: Service technicians

• User1: Freely available

• Admin: Administrator

The "Admin" user assigns permissions for all users and changes their passwords.

Help

Note The "WEB" setting effectively means no user. It simply indicates that there is a connection

between the Web browser and the adjustment support.

At the bottom right, you will see a “Help” button with which you can call up online help at any time.

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Operation

9.3 Working with setup support

9.3.2 Adjust Sensor

In this dialog, you make the basic settings for processing the image.

Settings

Figure 9-9 Adjustment

This is where you enter the parameters for image capture and processing.

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Operation

9.3 Working with setup support

9.3.3 Connections

The Connections dialog is made up of the following three parts:

• Part 1/3: Interfaces

• Part 2/3: Integration

• Part 3/3: Version

Part 1/3: Interfaces

Here, you specify the communication ports and the parameters for the ports.

Figure 9-10 Connections - Ports tab

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Operation

9.3 Working with setup support

Part 2/3: Integration

This is where you specify the path over which signals are sent to the VS120 processing unit and over which path the results are output.

Figure 9-11 Connections - Integration tab

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Siemens SIMATIC VS120 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

Introduction

Safety instructions

Description

3.1 3.1 Product description

3.2 Performance features

3.3 Function

3.4 System components

3.5 System requirements

3.6 Design of the SIMATIC VS120 processing unit

3.7 Design of the sensor head with LED ring flash

Image processing

4.1 4.1 General information

4.2 Shutter Speed and Brightness

4.2.1 Different exposures and brightnesses

4.2.2 Disturbing contours caused by shine

4.3 Generating models and detecting orientation

4.3.1 Setting for the Precision parameter

4.3.2 Measures for optimizing object recognition

4.4 Quality of the measured values

4.5 Geometric distortion

4.6 4.6 Main ROI and sub-ROI

4.6.1 Example: Main ROI and 3 sub-ROIs

4.6.2 Example of the influence of sub-ROIs on the quality value

4.7 Job parameter

4.8 Search parameter

4.9 Model type parameter

4.10 Model sets

Network and system integration

5.1 5.1 Overview

5.2 System configuration over digital I/O

5.3 PROFIBUS DP system configuration

5.4 PROFINET IO system configuration

5.5 System configuration with Ethernet or RS-232 over Com server

Installation

6.1 6.1 Installing the SIMATIC VS120 processing unit

6.2 6.2 Installing the sensor head with LED ring flash

Connecting

7.3 Connecting components

Commissioning

8.1 8.1 Prerequisites

8.2 Overview of the steps in commissioning

8.3 Turn on the VS120 processing unit

8.4 Establish an Ethernet connection between the processing unit and PG / PC

8.4.1 Select the connection variant

8.4.1.1 Connection variants

8.4.1.2 Operating the VS120 processing unit as a DHCP server

8.4.1.3 Connecting the VS120 processing unit manually

8.4.1.4 Integrating the VS120 processing unit as a DHCP client in a network

8.4.1.5 Integrating the VS120 processing unit as a device in a PROFINET IO network

8.4.2 Check whether a proxy server is being used

8.4.3 Change the proxy configuration of your Internet Explorer

8.4.4 Check the connection

8.5 Start setup support over the Internet Explorer

8.6 Adjust the sensor head using setup support

Operation

9.1 9.1 Overview

9.2 9.2 Working with the processing unit

9.2.1 Introduction

9.2.2 Adjust

9.2.3 Connect

9.2.4 RUN

9.2.5 Options

9.2.6 Maintain

9.3 Working with setup support

9.3.1 Introduction

9.3.2 Adjust Sensor

9.3.3 Connections