Mitsubishi Electric MELSENSOR Vision Sensor VS20 Series Instruction Manual

Vision Sensor VS20
Connection Guide
-VS20M-11F310
-VS20M-12F410
-VS20M-13F410
-VS20C-12F410
-VS20C-13F410
This product was manufactured by Cognex Corporation.
*Note that the warranty on this product differs from that on other
programmable controller products.

1
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full attention to safety to handle
the product correctly. The precautions given in this manual are concerned with this product only. For the safety precautions of
the programmable controller system, refer to the user's manual for the CPU module used.
In this manual, 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.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future reference.
[Installation Precautions]
[Installation Precautions]
[Wiring Precautions]
WARNING
●Before touching the Vision Sensor, be sure to touch an electric conductor such as grounded metal to
discharge the static electricity from your body. Otherwise, damage or faulty operation of the Vision
Sensor may occur.
●Be sure to install the I/O connector module to the main module. If not installed, dust/water-proof
performance may not obtained.
CAUTION
●IP protection rating is guaranteed only when all the connectors are connected with cables or sealed
with sealing caps.
●The cable is designed to connect with its key aligned with the keyway of the connector on the Vision
Sensor. It may be damaged if you try to connect it forcibly.
CAUTION
●Use only 24 V DC and observe the indicated polarity. Otherwise, fire or damage may result.
●The frame ground terminal of the I/O module and the shield ground of each connector (RS232 OUT
port and SENSOR port) are internally conducting. The system ground is designed on the condition
that a ground connection is provided. The ground potential may affect the vision system and
peripheral devices such as sequencer via cables. For safe operation, it is recommended to connect all
the ground connections securely.
WARNING Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.

2
[Startup and Maintenance Precautions]
CAUTION
●Do not clean the Vision Sensor VS20 with highly irritating or corrosive solvent such as caustic alkali
solution, methyl ethyl ketone (MEK), and gasoline. Doing so may cause a fault.

3
CONTENTS
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CHAPTER 1 THE SLMP SCANNER CONNECTION 4
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Example of system configuration for connecting the vision sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connecting and wiring of the vision sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Basic Operations of the SLMP Scanner Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Basic operation flow of the SLMP scanner connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Basic operations of the SLMP scanner connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Data blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Timing chart of the SLMP scanner connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.3 Vision Sensor Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.4 Setting the Programmable Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.5 Execute Programmable Controller and Vision Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.6 Checking Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Make the vision sensor online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Set the trigger to the vision sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Check inspection results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.7 Contents in Data Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CHAPTER 2 I/O CONNECTION 29
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Example of system configuration for connecting the vision sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Connecting and wiring of the vision sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.2 Vision Sensor Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.3 Setting the Programmable Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
2.4 Execute Programmable Controller and Vision Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2.5 Checking Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Make the vision sensor online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Set the trigger to the vision sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Check inspection results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

41 THE SLMP SCANNER CONNECTION
1.1 Introduction
1THE SLMP SCANNER CONNECTION
1.1 Introduction
This chapter describes the procedures for connecting the Vision Sensor VS20 to a MELSEC programmable controller and
controlling the vision sensor with a SLMP Scanner Connection.
Example of system configuration for connecting the vision
sensor
Personal computer
(GX Works3/In-Sight Explorer)
MELSEC iQ-R Programmable controller
Ethernet cable
Ethernet cable
Ethernet cable
(COGNEX product)
Power and I/O breakout cable
(COGNEX product)
Switching
hub
Vision sensor main unit
Power supply
24 V DC power supply
100 V power supply
USB cable

1 THE SLMP SCANNER CONNECTION
1.1 Introduction 5
1
Required modules and devices
■Mitsubishi Electric products
■COGNEX products
■Commercial products
MELSEC iQ-R Programmable controller
• CPU module: R04CPU
Vision Sensor VS20
• VS20M-13F410
GX Works3
(Engineering software for programmable controller)
In-Sight Explorer
(Setup tool for Vision Sensor)
Ethernet cable Power and I/O breakout cable
Switching hub Ethernet cable USB cable 24 V DC power supply

61 THE SLMP SCANNER CONNECTION
1.1 Introduction
Connecting and wiring of the vision sensor
1. Verify that the 24 V DC power supply being used is unplugged and not receiving power.
2. Optionally, connect the I/O or serial wires to an appropriate device (for example, a programmable controller).
3. Attach the power and I/O breakout cable’s [24 V DC] (Red wire) and [GND] (Black wire) to the corresponding terminals
on the power supply.
4. Connect the power and I/O breakout cable’s M12 connector to the vision sensor’s power, I/O and RS-232 connector.
5. Turn on the 24 V DC power supply switch.
Precautions
• When connecting the vision sensor and programmable controller, simultaneously turn on the vision sensor and
programmable controller, or first turn on the programmable controller.
• Cut unused wires or protect them with insulating materials. Keep all bare wires separated from the 24 V DC wire.
• All cable connectors are “keyed” to fit the connectors on the vision sensor. Do not force the connections or damage may
occur.

1 THE SLMP SCANNER CONNECTION
1.2 Basic Operations of the SLMP Scanner Connection 7
1
1.2 Basic Operations of the SLMP Scanner
Connection
Basic operation flow of the SLMP scanner connection
Basic operations of the SLMP scanner connection
In the SLMP Scanner Connection, the vision sensor reads control bit 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 bit blocks.
The processing status is written to the corresponding bit in the status bit block.
To control the vision sensor, assign the devices of the programmable controller to each of the defined data blocks (including
control bit blocks) and use them.
The following shows the functions of six data blocks.
The next section shows the data blocks and the timing chart of the SLMP Scanner Connection.
Data Blocks Contents
Control bit block This block is used to perform control instructions (such as trigger) to the vision sensor, using bit information. The
vision sensor is controlled by turning on and off the devices set to the control bit block using the programmable
controller.
Status bit block This block indicates the status of the vision sensor, and can be checked with bit information.
Input word block This block is used to input application data (including parameters for inspection) from the programmable controller,
and uses word information.
Output word block The vision sensor uses this block to output application data (including inspection results) to the programmable
controller. This block uses word information.
String command word block This block is used to set commands (string commands) to control the vision sensor. This block uses word information.
String command result word block This block is used to output the results controlled by the commands. This block uses word information.
Vision sensor
Set poll interval
While the trigger is on,
communication between
data import and the completion
of inspection is performed
regardless of the poll interval.
Programmable
controller
Reading CPU device
Reading control area
Reading control area
Reading control area
Trigger ON
Writing status
Writing status
Writing inspection results
Reading control area
Reading CPU device
Set the trigger instruction Bit of CPU device
to ON with the programmable controller
Reading the control area using the vision
sensor and accepting the trigger
Updating the status bit block and
output word block
Updating the status bit block and
output word block
Updating the status bit block and
output word block
The vision sensor sends the inspection results,
and the “Inspection Completed” status and
the “Results Valid” status.
Inspection Import

81 THE SLMP SCANNER CONNECTION
1.2 Basic Operations of the SLMP Scanner Connection
Data blocks
The following shows the six data blocks defined to control the vision sensor.
Control Bit Blocks
Status Bit Blocks
Input Word Blocks
Output Word Blocks
String Command Word Blocks
String Command Result Word Blocks
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Set Offline Reserved Execute
Command
Inspection
Results Ack
Buffer Results
Enable
Trigger Trigger Enable
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Reserved
Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16
Reserved Clear Exposure
Complete
Clear Error Initiate String
Command
Set User Data
Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24
Soft Event 7 Soft Event 6 Soft Event 5 Soft Event 4 Soft Event 3 Soft Event 2 Soft Event 1 Soft Event 0
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Online Offline Reason Missed Acq Reserved Trigger Ack Trigger Ready
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Error Command Failed Command
Completed
Command
Executing
Results Valid Results Buffer
Overrun
Inspection
Completed
System Busy
Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16
Reserved Job Pass Exposure
Complete
String Command
Error
String Command
Ack
Set User Data
Ack
Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24
Soft Event Ack 7 Soft Event Ack 6 Soft Event Ack 5 Soft Event Ack 4 Soft Event Ack 3 Soft Event Ack 2 Soft Event Ack 1 Soft Event Ack 0
Word 0 Word 1 Word 2..N
Command Reserved User Data
Word 0 Word 1 Word 2 Word 3 Word 4 Word 5..N
Current Job ID Error Code Acquisition ID Inspection ID Inspection Result Code Inspection Results
Word 0 Word 1..N
String Command Length String Command
Word 0 Word 1 Word 2..N
Result Code String Command Result Length String Command Result

1 THE SLMP SCANNER CONNECTION
1.2 Basic Operations of the SLMP Scanner Connection 9
1
For details of the data block functions to control the vision sensor, refer to In-Sight Explorer's HELP.
Set “SLMP” as a keyword in HELP and refer to the explanation of data blocks.

10 1 THE SLMP SCANNER CONNECTION
1.2 Basic Operations of the SLMP Scanner Connection
Timing chart of the SLMP scanner connection
The following shows a timing chart when [Trigger] of the control bit block is turned on from the programmable controller.
To enable the trigger from the programmable controller, turn on [Trigger Enable] of the control bit block.
When [Trigger] of the control bit block is turned on from the programmable controller while [Trigger Ready] of the status bit
block is on, the status of the vision sensor is output to [Trigger Ack], [Acquiring], [System Busy], and [Inspection Completed]
by the status bit block.
[Inspection Completed] changes (toggles) the status at every completion.
• Program example
Program example is shown below.
Trigger Enable Turn ON/OFF with the
programmable controller
(Program).
Turn ON/OFF the vision
sensor automatically.
When the inspection is completed,
the ON/OFF status is inverted.
Trigger
Trigger Ready
Read image
processing
System Busy
Inspection
Completed
Trigger Ack
Processing Processing

1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting 11
1
1.3 Vision Sensor Setting
Setting an IP address to the personal computer
Set the IP address 192.168.3.3 to the personal computer.
Connecting of the vision sensor
Start In-Sight Explorer to set the vision sensor.
1. Start the In-Sight Explorer software.
2. Add the vision sensor to the network.
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 [Apply].




12 1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting
3. Connect to the vision sensor.
Click [Connect] to connect to the
vision sensor.


1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting 13
1
Creating a new job
1. Create a new job.
As an example, configure the setting of an inspection to see if there is a “CE” mark on the inspection object.
2. Adjust the lens so that the lens captures an inspection target in [Set Up Image], and configure the settings to acquire the
image.
Select [New Job].
Select [Set Up Image].
Select [Live Video] to adjust the
image. After adjusting the image,
select [Live Camera] again.
Select “Industrial Ethernet”.




14 1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting
3. Set a tool.
4. Set a model on the position to be detected.
Select [Locate Part].
Select “Pattern”.
Set the model. (Select “CE” mark)
Click [OK].





1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting 15
1
Communication setting
1. Configure the communication setting (SLMP scanner).
2. Add the SLMP Scanner to the communication.
Select [Communication].
Select [Add Device].
Configure the device setting as
shown left.
• Device: PLC/Motion Controller
• Manufacturer: Mitsubishi
• Protocol: SLMP Scanner
Click [OK].





16 1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting
3. Set the SLMP Scanner.
• SLMP response from the programmable controller may be delayed due to on-line operation to the
programmable controller, etc., making connections disconnected in some cases, so ensure a sufficient
margin for the timeout time.
• Shortening the poll interval also shortens the interval to monitor the programmable controller status.
Assigning devices
Configure the settings as shown
left.
• Controller Type: iQ-R/Q/L Series
(3E Frame)
• IP Address: 192.168.3.2
• Host Port: 12289 (Port No. of the
Ethernet parameter set in GX
Works3)
• Timeout (ms): 1000
• Poll interval (ms): 100
Select [Device Addressing].
Set a selected 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 Page 25 Contents in data
blocks.




1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting 17
1
Outputting to the programmable controller
1. Set data to be output from the vision sensor to the programmable controller.
As an example, set PASS, FAIL, and the number of inspection to the output word block (D1015 to D1017).
2. Select the data to be output to the programmable controller.
3. Display the output result to the programmable controller.
Click [Add].
Select “Pattern_1 inspection result
(PASS/FAIL)”.
Select “Job.Inspection_Count”.
Click [OK].
Device Address: D1015 to D1017
Message size (words): 3
Items corresponding to the device address can be changed by using the [Up] and [Down]. As an example, sort as above for easy viewing.







18 1 THE SLMP SCANNER CONNECTION
1.3 Vision Sensor Setting
Saving the job
1. Name the created job.
2. Input the file name and save the job.
Select [Save Job].
Click [Save As...].
Set “1TestSLMP” in “File name”.
Click [Save].


