Vision System Connection Guide (COGNEX SLMP Connection) INTRODUCTION About This Connection Guide This connection guide describes the procedures for connecting the COGNEX vision system

Vision System Connection Guide (COGNEX SLMP Connection)

CONTENTSSAFETY PRECAUTIONS .............................................. A-1REVISIONS.................................................................... A-2

INTRODUCTIONAbout This Connection Guide .................................. 1Required Modules and Devices ............................... 1System Configuration for Connecting the Vision System.. 2Connecting and Wiring the System .......................... 3

BASIC OPERATIONS OF THE SLMP SCANNERBasic Operation Flow of the SLMP Scanner ............ 4Basic Operations of the SLMP Scanner................... 5Data Blocks .............................................................. 5Timing Chart of the SLMP Scanner.......................... 7

SETTING THE VISION SYSTEMSetting the Vision System ........................................ 8

SETTING THE PROGRAMMABLE CONTROLLERSetting the Programmable Controller ....................... 16

STARTING THE PROGRAMMABLE CONTROLLER AND VISION SYSTEM

Starting the Programmable Controller and Vision System . 18

CHECKING OPERATIONSChecking Operations................................................ 19Setting a Trigger ....................................................... 19Setting Values to Parameters ................................... 21

CONTENTS IN DATA BLOCKSContents in Data Blocks ........................................... 22

APPENDIXOther Control Methods ............................................. 26

COGNEX

In-Sight EZ-700 series/In-Sight EZ-100 seriesIn-Sight Micro series/In-Sight 5000 series/In-Sight 7000 series

A - 1

SAFETY PRECAUTIONS(Read these precautions before using this product.)

Before using the products described in this document, please read this manual and the relevant manuals

carefully and pay full attention to safety to handle the products correctly.

In this section, the safety precautions are classified into two levels: " WARNING" and " CAUTION".

Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to

serious consequences.

Always observe the instructions of both levels to ensure personal safety.

WARNING

CAUTION

Indicates that incorrect handling may cause hazardous conditions,

resulting in death or severe injury.

Indicates that incorrect handling may cause hazardous conditions,

resulting in minor or moderate injury or property damage.

A - 2

REVISIONS

No. Revision Remarks

* First edition

1

INTRODUCTION

About This Connection Guide

This connection guide describes the procedures for connecting the COGNEX vision system to a MELSEC programmable controller and controlling the vision system with an SLMP scanner.

Required Modules and Devices

Prepare the following modules and devices.

*1 Used with the In-Sight EZ-700 series, In-Sight 7000 series, or In-Sight 5000 series. *2 Used with the In-Sight EZ-100 series and In-Sight Micro series.

COGNEX products

Mitsubishi Electric products

Ethernet straight cable

LensHUB/PoE hub*2

Commercial products

Ethernet cable for In-Sight

GX Works2 (Engineering software for programmable controllers)

MELSEC-Q/L series programmable controller

Breakout cable (for 24 V DC power supply)*1

In-Sight Explorer (Vision system setup software)

USB cable 24 V DC power supply*1

In-Sight series

　　

INTRODUCTION

System Configuration for Connecting the Vision System

Connect the power supply and I/O breakout cable to the PWR connector of the vision system.

3)

IP address (192.168.3.3)

GX Works2,In-Sight Explorer

HUB*

24 V DC power supply

Connect the HUB and each device with Ethernet cables.

Vision system IP address (192.168.3.1)

MELSEC-Q/L series programmable controller IP address (192.168.3.2)

2)

Connect the programmable controller and a personal computer with the USB cable.

1)

* Use a PoE hub when the In-Sight EZ-100 series or In-Sight Micro series is used as the vision system.

　　

2

3

INTRODUCTION

Connecting and Wiring the System

(1) External power supply connection (In-Sight EZ-700 series, In-Sight 7000 series, In-Sight 5000 series)

1) Make sure that the switch of 24 V DC power supply is off.

2) Connect the power cable of a breakout cable and the terminal compatible with the power supply.

(Check the compatible cable in the following diagram.)

(2) Connection of the vision system and a breakout cable (In-Sight EZ-700 series, In-Sight 7000 series, In-Sight 5000 series)Connect a power supply and I/O breakout cable to the PWR connector of the vision system.

CAUTION Cut unused wires or protect them with insulating materials. Prevent them from being short-circuited with the +24 V DC wire.

WARNING Do not use the voltage other than 24 V DC. Comply with the polarity as described.

+24 V DC power supply (white and green)

Ground (brown)

+24 V DC input (red)

24 V Common (black)

In-Sight 5000 series In-Sight EZ-700 or 7000 series

Connect the positive pole of the 24 V DC power supply.

Connect the negative pole of the 24 V DC power supply.

Connect the positive pole of the 24 V DC power supply.

Connect the negative pole of the 24 V DC power supply.

　　

BASIC OPERATIONS OF THE SLMP SCANNER

Basic Operation Flow of the SLMP Scanner

• Reading M relay and

D register

• Reading M relay and

D register

Turning on the trigger command bit to M relay using a sequence program

Reading the control area using the vision system and accepting the trigger

Updating the status

block and output block

Updating the status


Updating the status


Reading control area




Trigger ON

Writing status

Writing status

Writing inspection results

The vision system sends inspection results, and the "Inspection Completed" status and the "Results Valid" status.

While the trigger is on, communication between data import and the completion of inspection is performed regardless of the poll interval.

Set poll interval

Vision systemProgrammable

controller

Impo

rtIn

spec

tion

　　

4

5


Basic Operations of the SLMP Scanner

In the SLMP Scanner, the vision system reads control blocks from the programmable controller at the poll interval set with In-Sight Explorer, and the processing is performed responding to the change of the bit information in the control blocks.The processing status is written to the corresponding bit in the status block.To control the vision system, assign the devices of the programmable controller to each of the defined data blocks (including control blocks) and use them.The following shows the functions of six data blocks.

• Control block: This block is used to send control commands (including triggers) to the vision system. This block uses bit information. The vision system is controlled by turning on and off the devices set to the control block using the programmable controller.

• Status block: This block indicates the status of the vision system, and can be checked with bit information.

• Input block: This block is used to input application data (including parameters for inspection) from the programmable controller, and uses word information.

• Output block: The vision system uses this block to output application data (including inspection results) to the programmable controller. This block uses word information.

• String command block: This block is used to set commands (string commands) to control the vision system. This block uses word information.

• String command result block: This block is used to output the results controlled by the commands. This block uses word information.

The next section shows the data blocks and the timing chart of the SLMP Scanner.

Data Blocks

The following shows the six data blocks defined to control the vision system.

Control data block

Status block

　　

Output block
Input block

String command block

String result command block

For details of the data block functions to control the vision system, refer to In-Sight Explorer's HELP.Set "SLMP" as a keyword in HELP and refer to the explanation of data blocks.

　　

6

7


Timing Chart of the SLMP Scanner

The following shows a timing chart when "Trigger" of the control block is turned on from the programmable controller.To enable the trigger from the programmable controller, turn on "Trigger Enable" of the control block.When "Trigger" of the control block is turned on from the programmable controller while "Trigger Ready" of the status block is on, the status of the vision system is output to "Trigger Ack", "Acquiring", "Inspecting", and "Inspection Completed" of the status block."Inspection Completed" changes (toggles) the status at every completion.

Programmable controller (control block)

Vision system (status block)

Trigger Enable

Trigger Ready

Trigger

Trigger Ack

Acquiring

Inspecting

InspectionCompleted

3)

3)

3)

3)

2)

2)

2)

2)

2)

1)

1)

1)

1)

1)

1)

3)

2) 3)

　　

SETTING THE VISION SYSTEM

Setting the Vision System

(1) Setting an IP address to the personal computerSet the IP address 192.168.3.3 to the personal computer.

(2) Connection with the vision system

Add the vision system to the network.

Click!

Click!

Start In-Sight Explorer to set the vision system.

Click [Add].

Set the sensor and device to the network as shown left. IP Address: 192.168.3.1 Subnet Mask: 255.255.255.0

Click [Connect] to connect to the vision system.

　　

8

9


(3) Creating a new job

Select [New Job].

Create a new job to detect the workpiece position.

Adjust the lens so that the lens captures an inspection target in [Set Up Image], and configure the settings to acquire the image.

1

23

Select [Set Up Image].1

Select [Live Video] to adjust the image.2

Select [Network].3

Set a tool.

1

2

Select [Locate Part].1

Select [PatMax® Pattern].2

Select!

　　


Set a model on the position to be detected.

Set the model.1

Click [OK].2

Click!

1

2

　　

10

11


(4) Communication setting

Configure the communication setting (SLMP scanner).

Add the SLMP scanner to the communication.

Click!

Click!

Click [OK].

Select!

Select!

Configure the device setting as shown left. Device: PLC/Motion Controller Manufacturer: Mitsubishi Protocol: SLMP Scanner

Set the SLMP scanner.

Configure the following settings. Controller Type: Q/L Series (3E Frame) IP Address: 192.168.3.2 Host Port: 12289 (the port number of the Ethernet parameter set with GX Works2) Timeout (ms): 1000 Poll Interval (ms): 100

1

1

2

2

Select [Communication].1

Click [Add Device].2

1

2

Shortening the poll interval also shortens the interval to monitor the programmable controller status.POINTPOINTPOINT

　　


(5) Assigning devices

Select!

Set a device, offset, and the number of devices to each of the six data blocks as shown left. For control contents of when the device is assigned to each data block, refer to "DATA BLOCK CONTENTS".

1 2 Select [Device Addressing].1

2

　　

12

13


(6) Outputting to the programmable controller

Click!

Set data to be output from the vision system to the programmable controller. (As an example, set the inspection count, X coordinate, Y coordinate, and angle to the output block.)

Click [Add].

Click [OK].

Select the data to be output to the programmable controller.

Click!

Select!

Select!

Display the output result to the programmable controller. Message size (words): 7

Select the X and Y coordinates and angle of the detection target.

Select "Job.Inspection_Count".

　　


(7) Inputting from the programmable controller

Click!

Set data to be input from the programmable controller to the vision system. (As an example, set "Rotation_Tolerance"to the input block.)

Click [Add].

Select [Pattern_1.Rotation_Tolerance] as an input from the programmable controller, and click [OK].

Click!

Select!

Display the input result from the programmable controller. Message size (words): 1

　　

14

15


(8) Saving the job

Name the created job and save it.

Click!

Select!

Click!

1

2

1 2

Select [Save Job].1

Click [Save As...].2

Set an arbitrary name.1

Click [Save].2

　　

SETTING THE PROGRAMMABLE CONTROLLER

Setting the Programmable Controller

Start GX Works2 to set the programmable controller.

Start GX Works2 and create a new project. Select Type: Q06UDV, Project Type: Simple Project, and Language: Ladder.

Click [OK].

The Q Parameter Setting window appears.

Select the [Buit-in Ethernet Port Setting] tab.

Double-click "PLC Parameter" in the Project window.

Double-click!

Click!

Select!

Click!

Select!

Select!

Configure the setting in the [Buit-in Ethernet Port Setting] tab as shown left. IP Address: 192.168.3.2 Select "Binary Code" and "Enable online change (FTP, MC Protocol)".

Select! Click [Open Setting].

　　

16

17

SETTING THE PROGRAMMABLE CONTROLLER

Click!

Select!

1

2 34

Select "DEC" for "IP Address/Port No. Input Format".

1

Select "TCP" in "Protocol".2

Select "MC Protocol" in "Open System".

3

Enter "12289" to "Host Station".4

Key input

Click [End].

The user have to set parameters for communication, however, do not need to create a program for communication.POINTPOINTPOINT

The Q Parameter Setting window appears.

Click [End].

Click!

　　

　　

18

STARTING THE PROGRAMMABLE CONTROLLER AND VISION SYSTEM

Starting the Programmable Controller and Vision System

(1) Starting the programmable controllerWrite the parameters.

(2) Connecting the vision system to the networkStart the communication with the programmable controller.

Select!

Click!

Select [Parameter + Program] and click [Execute].

After writing the parameters is completed, reset and run the programmable controller.

1

2Select [Communication].1

Select [Online]. Check that [Connected.] is displayed for the SLMP Scanner.

2

Select!

Select!

19

CHECKING OPERATIONS

Checking Operations

Control the vision system using the programmable controller and check the operations.

Setting a Trigger

Set a trigger to the vision system to acquire inspection results.Open "Device/Buffer Memory Batch Monitor" in GX Works2 to display devices.

Set devices as shown left. Device Name: D1000

D1000 to D1001: Control

D1002 to D1003: Status

D1005 to D1009: Input block

D1010 to D1022: Output block

To enable the trigger form the programmable controller, turn "ON" the "Network Trigger Enable" bit (D1000.0).

When the "Network Trigger Enable" bit (D1000.0) is "OFF", the vision system does not operate even though the trigger is ON.

Turn on the "Trigger Enable" bit.

　　

CHECKING OPERATIONS

The X and Y coordinates and the angle of the inspection result are output as 32-bit floating-point values. Switch the display format to [Real Number (32Bit)] and check the values.

To set the trigger to the vision system again, turn "OFF" and "ON" D1000.1.

* The "Inspection Completed" bit (D1002.9) changes (toggles) the status when the inspection is completed.

Turn "ON" the "Trigger" bit (D1000.1) of the control block. The vision system is triggered and an inspection result is output. As the inspection result, the format output data set with the SLMP Scanner of In-Sight Explorer is output.

D1015 = Inspection count, D1016 = X coordinate, D1018 = Y coordinate, D1020 = Angle

When the inspection is completed, the "Inspection Completed" bit (D1002.9) changes (toggles) the status.

Select!

Click the [Format Output Data] tab.

The values output to the programmable controller can be checked with In-Sight Explorer.

Click!

Angle D1020

Trigger ON

Inspection Completed*

Inspection Completed

Y coordinate D1018 to D1019

Y coordinate D1018

X coordinate D1016

Angle D1020 to D1021

Values output to the programmable controller

X coordinate D1016 to D1017

Inspection count

　　

20

21

CHECKING OPERATIONS

Setting Values to Parameters

Set a value to the format input data (Pattern_1.Rotation_Tolerance) set with the SLMP scanner of In-Sight Explorer.

When the "Trigger" bit (D1000.1) of the control block is turned "ON", the inspection is performed with the new "Pattern_1.Rotation_Tolerance".

Set "50" to the user area D1007 of the input block. Turn "ON" "Set User Data" (D1001.0) of the control block. To change "Pattern_1.Rotation_Tolerance" again, set a new value to D1007, and turn "OFF" and "ON" D1001.0.

To check the new "Pattern_1.Rotation_Tolerance" on In-Sight Explorer, trigger the vision system from the programmable controller and check the new value.

The "Rotation Tolerance" value is 50 (50.000).

Turn ON "Set User Data". D1001.0

Set 50 to "Pattern_1. Rotation_Tolerance". D1007

　　

CONTENTS IN DATA BLOCKS

Contents in Data Blocks

Set a start device and the number of devices to each data block with In-Sight Explorer.The start device types (such as D, M, and X) and the start devices can be changed. The number of devices, excluding the ones for the control block and status block, can be changed. The control details set to each data block are fixed in the system.The following shows the control details of the six data blocks where devices have been assigned.

Device assignment (Control)

Type Start deviceNumber of

devices

Control D1000 2

Status D1002 2

Input block D1005 5

Output block D1010 12

Command D1025 100

Command Result D1125 100

Classification Device Control details (Application) Supplement

Control

D1000.0 Network Trigger Enable

The trigger is enabled by turning on

this bit and is disabled by clearing this

bit.

D1000.1 Trigger

The following conditions need to be

satisfied to enable the trigger.

The In-Sight vision system is online

when the Network Trigger Enable bit is

on.

In the setting of In-Sight Explorer,

[Network] or [External] is set for the

[Trigger] parameter.

D1000.2 Buffer Result Enable

D1000.3Inspection Result ON

Acknowledgment

D1000.4 Job Load Trigger

An ID of the job to be loaded to the Job

Load ID of the input block is set and

this bit turns on.

D1000.5Reserved

D1000.6

D1000.7 SetOfflineThe vision system goes offline when

this bit is turned on.

　　

22

23


Control

D1000.8

Reserved

D1000.9

D1000.A

D1000.B

D1000.C

D1000.D

D1000.E

D1000.F

D1001.0 Set User DataThis bit turns on from off when the user

data of the input block is updated.

D1001.1 Send Native Mode Command

D1001.2 Reserved

D1001.3 Clear Image Complete Signal

D1001.4

ReservedD1001.5

D1001.6

D1001.7

D1001.8 Soft Event 0 Trigger

D1001.9 Soft Event 1 Trigger

D1001.A Soft Event 2 Trigger

D1001.B Soft Event 3 Trigger

D1001.C Soft Event 4 Trigger

D1001.D Soft Event 5 Trigger

D1001.E Soft Event 6 Trigger

D1001.F Soft Event 7 Trigger


　　

Device assignment (Status)

Status

D1002.0 Network Trigger ReadyThis bit turns on when the trigger can

be input.

D1002.1 Trigger ON Acknowledgment

This bit notifies that the trigger ON is

acknowledged.

This bit remains ON until the trigger bit

is cleared.

D1002.2 Importing ImageThis bit turns on while an image is

being imported.

D1002.3 Importing Failed

This bit turns on when importing an

image failed.

This bit is cleared when importing an

image is properly completed.

D1002.4

Offline Reason

D1002.4: Offline operation from a

program

D1002.5: Offline operation from the

discrete signal input

D1002.6: Offline operation from the

communication

D1002.5

D1002.6

D1002.7 OnlineThis bit turns on when the vision

system is online.

D1002.8 InspectingThis bit turns on during inspection

processing.

D1002.9 Inspection CompletedThis bit changes (toggles) the status

when inspection is completed.

D1002.A Result Buffer Overrun

D1002.B Results Valid

D1002.C Job Loading

D1002.D Job Load Complete

D1002.E Job Load Failed

D1002.F Fault

D1003.0Set User Data Trigger

Acknowledgment

D1003.1Send Native Mode Command Trigger

Acknowledgment

D1003.2 Native Mode Command Error

D1003.3 Imaging Completed

D1003.4

ReservedD1003.5

D1003.6

D1003.7

D1003.8 Soft Event 0 Trigger Acknowledgment

D1003.9 Soft Event 1 Trigger Acknowledgment

　　

24

25


Device assignment (Input block, Output block, Command, and Command result)

Status

D1003.A Soft Event 2 Trigger Acknowledgment

D1003.B Soft Event 3 Trigger Acknowledgment

D1003.C Soft Event 4 Trigger Acknowledgment

D1003.D Soft Event 5 Trigger Acknowledgment

D1003.E Soft Event 6 Trigger Acknowledgment

D1003.F Soft Event 7 Trigger Acknowledgment


Input block

D1005 Job Load IDThis device stores an ID of the job to

be loaded.

D1006 User Data Length This device stores the user data length.

D1007

to

D1009

User Data

These devices store the data that has

been specified with the format input

data and is to be input to the vision

system.

Output block

D1010 Loaded Job ID "-1" is stored when no Job ID exists.

D1011 Image Import ID

D1012 Inspection Result ID

D1013 Image Inspection Result Code

D1014 Inspection Result String Length

D1015

to

D1021

Inspection Result

These devices store the data that has

been specified with the format output

data and is to be output from the vision

system.

Command

D1025 String Word Length

D1026

to

D1124

Command String

These devices store native mode

commands to be sent to the vision

system.

Command Result

D1125 Result Code

D1126 Result String Word Length

D1127

to

D1224

Command Result String


　　

　　

26

APPENDIX

Other Control Methods

To control the vision system from the programmable controller, the following methods are provided in addition to the SLMP scanner that controls the system by turning on and off bits. Use the following meth-ods to eliminate the trigger delay due to polling.

(1) External trigger + SLMPThe output of the programmable controller and the trigger input of the vision system are directly

connected, the trigger is executed, and then inspection results are output using SLMP.

The trigger delay due to polling does not occur because the vision system does not perform polling

to the programmable controller.

(2) Control command + SLMPThe programmable controller sends control commands (Trigger commands) to the vision system

via Ethernet and outputs inspection results using SLMP.

The trigger delay due to polling does not occur because the vision system does not perform polling

to the programmable controller.

Since only Ethernet cables are required for the connection, the system configuration can be

simplified.

Ethernet is a registered trademark of Xerox Corporation in the United States.Cognex and In-Sight are registered trademarks of Cognex Corporation.All other company names and product names in this document are the trademarks or registered trademarks of the respective company.

Vision System Connection Guide(COGNEX SLMP Connection)

SH(NA)081458ENG-A 1410<CDS> New publication, effective Oct. 2014.

Mitsubishi Electric Corporation Nagoya Works is a factory certified for ISO14001 (standards for environmental management systems) and ISO9001(standards forquality assurance management systems)

Documents

Vision System Connection Guide (COGNEX SLMP Connection) INTRODUCTION About This Connection Guide This connection guide describes the procedures for connecting the COGNEX vision system