Omron CJ2*-CPU Series Instruction Manual

CJ Series
IO-Link Connection Guide
(EtherNet/IPTM Host Communications)
OMRON Corporation
Photoelectric Sensor
(E3Z-series IO-Link)
[IO-Link Master Unit]
OMRON Corporation
NX-series IO-Link Master Unit
(NX-ILM[][][])
NX-series Ethernet/IP Coupler Unit
(NX-EIC202)
P666-E1-01

About Intellectual Property Rights and Trademarks
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
Windows is a registered trademark of Microsoft Corporation in the USA and other countries.
ODVA and EtherNet/IPTM are trademarks of ODVA.
Sysmac is a trademark or registered trademark of OMRON Corporation in Japan and other
countries for OMRON factory automation products.
Company names and product names in this document are the trademarks or registered
trademarks of their respective companies.

Table of Contents
1. Related Manuals........................................................................................ 1
2. Terms and Definitions............................................................................... 2
3. Precautions................................................................................................ 4
4. Overview .................................................................................................... 5
5. Applicable Devices and Device Configuration ....................................... 6
5.1. Applicable Devices ................................................................................ 6
5.2. Device Configuration ............................................................................. 7
6. Communications Settings ........................................................................ 9
6.1. EtherNet/IP Connection Parameters...................................................... 9
6.2. IO-Link Connection Parameter.............................................................. 9
6.3. Slave Terminal Configuration................................................................. 9
6.4. Tag Data Link Settings......................................................................... 10
7. IO-Link Connection Procedure............................................................... 12
7.1. Work Flow............................................................................................ 12
7.2. Slave Terminal Setup........................................................................... 14
7.3. PLC Setup........................................................................................... 26
7.4. Network Settings for Host Communications ........................................ 36
7.5. IO-Link Communication Status Check................................................. 48
8. Initialization Method................................................................................ 59
8.1. Initializing PLC..................................................................................... 59
8.2. Initializing Slave Terminal .................................................................... 61
8.3. Initializing Photoelectric Sensor........................................................... 62
9. Revision History...................................................................................... 63

1
．
Related Manuals
1
1. Related Manuals
To ensure system safety, make sure to always read and follow the information provided in all
Safety Precautions and Precautions for Safe Use in the manuals for each device which is
used in the system.
The table below lists the manuals which pertain to this document.
Cat. No. Model Manual name
W472 CJ2M-CPU[][]
CJ2H-CPU6[]
CJ2H-CPU6[]-EIP
CJ-series
CJ2 CPU Unit
Hardware USER'S MANUAL
W473 CJ2M-CPU[][]
CJ2H-CPU6[]
CJ2H-CPU6[]-EIP
CJ-series
CJ2 CPU Unit
Software USER'S MANUAL
W465 CJ1W-EIP21
CJ2M-CPU3[]
CJ2H-CPU6[]-EIP
CJ Series
EtherNet/IPTM Units
OPERATION MANUAL
W446 CXONE-AL[][]C-V4
/ AL[][]D-V4
CX-Programmer
OPERATION MANUAL
0969584-7 W4S1-05[]
W4S1-03B Switching Hub W4S1-series
Users Manual
W504 SYSMAC-SE2[][][] Sysmac Studio Version 1
Operation Manual
W536 NX-EIC202
NX-series
EtherNet/IPTM Coupler Unit
User’s Manual
W567 NX-ILM[][][] NX-series IO-Link Master Unit
User’s Manual
W570 NX-ILM[][][]
GX-ILM[][][] IO-Link System User’s Manual
9540404-3 E3Z-[]8[]-IL[] PHOTOELECTRIC SENSOR
INSTRUCTION SHEET
9541795-1 E3Z-[]8[]-IL[] Photoelectric Sensor
INDEX LIST

2
．
Terms and Definitions
2
2. Terms and Definitions
Term Explanation and Definition
IO-Link device A device with a sensor or an actuator that can perform IO-Link
communications with an IO-Link master.
IO-Link master A device that performs IO-Link communications with IO-Link devices in
an IO-Link System and that simultaneously functions as a slave for
host communications. “IO-Link Master Unit" is used to refer to a
specific Unit in this document.
IO-Link Mode A communication mode of an IO-Link master to perform IO-Link
communications with IO-Link devices.
Cyclic
communications Communications that exchange data in a fixed period with no need for programming.
I/O data All target data in cyclic communications with a host.
IO-Link Systems contain the following two types of I/O data.
・Target data in cyclic communications with a host in an IO-Link master
・Target data in IO-Link devices for cyclic communications with an
IO-Link master
Process data I/O data in IO-Link devices. You can allocate a maximum of 32 bytes of
process data in a master.
IODD file A definition file for an IO-Link device. The parameter settings for an
IO-Link device can be made by installing this file in
CX-ConfiguratorFDT.
Node A programmable controller and a device are connected to an
EtherNet/IP network via EtherNet/IP ports. EtherNet/IP recognizes
each EtherNet/IP port connected to the network as one node.
When a device with two EtherNet/IP ports is connected to the
EtherNet/IP network, EtherNet/IP recognizes this device as two nodes.
EtherNet/IP achieves the communications between programmable
controllers or the communications between a programmable controller
and a device by exchanging data between these nodes connected to
the network.
Tag A minimum unit of the data that is exchanged on the EtherNet/IP
network is called a tag. The tag is defined as a network variable or as a
physical address, and it is assigned to the memory area of each
device.
Tag set In the EtherNet/IP network, a data unit that consists of two or more tags
can be exchanged. The data unit consisting of two or more tags for the
data exchange is called a tag set. Up to eight tags can be configured
per tag set for the programmable controllers produced by OMRON
Corporation.

2
．
Terms and Definitions
3
Tag data link In EtherNet/IP, the tag and tag set can be exchanged cyclically
between nodes without using a user program.
This feature is called a tag data link.
Connection A connection is used to exchange data as a unit within which data
concurrency is maintained. The connection consists of tags or tag sets.
Creating the concurrent tag data link between the specified nodes is
called a "connection establishment". When the connection is
established, the tags or tag sets that configure the connection are
exchanged between the specified nodes concurrently.
Connection type There are two kinds of connection types for the tag data link
connection. One is a multi-cast connection, and the other is a unicast
(point-to-point) connection. The multi-cast connection sends an output
tag set in one packet to more than one node. The unicast connection
separately sends one output tag set to each node.
Therefore, multi-cast connections can decrease the communications
load if one output tag set is sent to more than one node.
Originator and Target To operate tag data links, one node requests the opening of a
communications line called a "connection".
The node that requests to open the connection is called an "originator",
and the node that receives the request is called a "target".
Tag data link
parameter A tag data link parameter is the setting data to operate tag data links. It includes the data to set tags, tag sets, and connections.

3
．
Precautions
4
3. Precautions
(1) Understand the specifications of devices which are used in the system. Allow some
margin for ratings and performance. Provide safety measures, such as installing a safety
circuit, in order to ensure safety and minimize the risk of abnormal occurrence.
(2) To ensure system safety, make sure to always read and follow the information provided in
all Safety Precautions and Precautions for Safe Use in the manuals for each device
which is used in the system.
(3) The user is encouraged to confirm the standards and regulations that the system must
conform to.
(4) It is prohibited to copy, to reproduce, and to distribute a part or the whole of this
document without the permission of OMRON Corporation.
(5) The information contained in this document is current as of July 2016. It is subject to
change for improvement without notice.
The following notations are used in this document.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or property damage.
Precautions for Correct Use
Precautions on what to do and what not to do to ensure proper operation and performance.
Additional Information
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
Symbol
The triangle symbol indicates precautions (including warnings).
The specific operation is shown in the triangle and explained in the text.
This example indicates a general precaution.
The filled circle symbol indicates operations that you must do.
The specific operation is shown in the circle and explained in the text.
This example shows a general precaution for something that you must do.

4
．
Overview
5
4. Overview
This document describes the procedures for connecting E3Z-series IO-Link Photoelectric
Sensor (hereinafter referred to as Photoelectric Sensor) that is connected via IO-Link to
IO-Link Master Unit (NX-ILM[][][]) to CJ-series Programmable Controller + EtherNet/IP Unit
(hereinafter referred to as PLC) via EtherNet/IP through EtherNet/IP Coupler Unit
(NX-EIC202) to which IO-Link Master Unit is connected and also for checking their
communication status - all of which are produced by OMRON Corporation.
Refer to Section 6. Communications Settings and Section 7. IO-Link Connection Procedure to
understand setting methods and key points to perform cyclic communications in the IO-Link
system.
In this document, a specific EtherNet/IP slave configured of EtherNet/IP Coupler Unit and
IO-Link Master Unit is called "Slave Terminal".
Also, CJ-series EtherNet/IP Unit and the built-in EtherNet/IP port of CJ-series CJ2 CPU Unit
are collectively called "EtherNet/IP Unit''.
<Slave Terminal Configuration>
E
therNet/IP Coupler Unit (NX-EIC202)
IO
-Link Master Unit (NX-ILM[][][])
Slave Terminal
Performs EtherNet/IP
communications with PLC.
Performs IO
-Link communications
with Photoelectric Sensor.

5
．
Applicable Devices and Device Configuration
6
5. Applicable Devices and Device Configuration
5.1. Applicable Devices
The applicable devices are as follows:
Manufacturer Name Model
OMRON CJ2 CPU Unit CJ2[]-CPU[][]
OMRON EtherNet/IP Unit CJ1W-EIP21
CJ2H-CPU6[]-EIP
CJ2M-CPU3[]
OMRON NX-series
EtherNet/IP Coupler Unit
NX-EIC202
OMRON NX-series
IO-Link Master Unit NX-ILM[][][]
OMRON E3Z-series
IO-Link Photoelectric Sensor E3Z-[]8[]-IL[]
Precautions for Correct Use
In this document, the devices with models and versions listed in 5.2. Device Configuration are
used as examples of applicable devices to describe the procedures for connecting the
devices and checking their connections.
You cannot use devices with versions lower than the versions listed in 5.2.
To use the above devices with models not listed in 5.2. or versions higher than those listed in
5.2., check the differences in the specifications by referring to the manuals before operating
the devices.
Additional Information
This document describes the procedures for establishing the network connections.
It does not provide information on operation, installation, wiring method, device functionality,
or device operation, which is not related to the connection procedures.
Refer to the manuals or contact the device manufacturer.

5
．
Applicable Devices and Device Configuration
7
5.2. Device Configuration
The hardware components to reproduce the connection procedures in this document are as
follows:
Manufacturer
Name
Model
Version
OMRON
CJ2 CPU Unit
(Built-in EtherNet/IP port)
CJ2M-CPU32
Ver.2.0
(Ver.2.12)
OMRON
Power Supply Unit
CJ1W-PA202
OMRON
Switching hub
W4S1-05C
Ver.1.00
-
Switching hub power supply (24 VDC)
-
OMRON
CX-One
CXONE-AL[][]C-V4
/AL[][]D-V4
Ver.4.[][]
OMRON
CX-Programmer
(Included in CX-One)
Ver.9.61
OMRON
Network Configurator
(Included in CX-One)
Ver.3.59c
-
Personal computer (OS: Windows 7)
-
-
USB cable
(for PLC)
(USB 2.0 type B connector)
-
-
LAN cable (STP (shielded,
twisted-pair) cable of Ethernet
category 5 or higher)
-
OMRON
NX-series
EtherNet/IP Coupler Unit
NX-EIC202
Ver.1.0
OMRON
NX-series
IO-Link Master Unit
NX-ILM400
Ver.1.0
-
Unit power supply (24 VDC)
-
-
I/O power supply (24 VDC)
-
OMRON
Sysmac Studio
NX-IO Edition
SYSMAC-NE001L
Ver.1.16
OMRON
CX-ConfiguratorFDT
(Included in
Sysmac Studio)
Ver.2.2
-
USB cable
(for Slave Terminal)
(USB 2.0 type B connector)
-
OMRON
IO-Link Photoelectric Sensor
E3Z-D82-IL3 2M
Ver.1.00
NX-EIC202＋
NX-ILM400
Personal computer (CX-One,
Sysmac Studio, and
CX-ConfiguratorFDT
installed,
OS: Windows 7)
I/O power supply
USB
cable
Unit power supply
E3Z-D82-IL3 2M
Switching hub power supply
LAN
cable
LAN
cable
USB cable
CJ2M-CPU32
(Built-in EtherNet/IP port)
W4S1-05C

5
．
Applicable Devices and Device Configuration
8
Precautions for Correct Use
Update CX-Programmer and Network Configurator to the versions specified in this Clause
5.2. or to higher versions. If you use a version higher than the one specified, the procedures
and related screenshots described in Section 7. and subsequent sections may not be
applicable. In that case, use the equivalent procedures described in this document by
referring the CX-Programmer OPERATION MANUAL (Cat. No. W446) and Network
Configurator Online Help.
Precautions for Correct Use
Update Sysmac Studio and CX-ConfiguratorFDT to the versions specified in this Clause 5.2.
or to higher versions. If you use a version higher than the one specified, the procedures and
related screenshots described in Section 7. and subsequent sections may not be applicable.
In that case, use the equivalent procedures described in this document by referring to the
Sysmac Studio Version 1 Operation Manual (Cat. No. W504) and the CX-ConfiguratorFDT
Online Help.
Additional Information
For power supply specifications available for Switching hub, refer to the Switching Hub
W4S1-series Users Manual (Cat. No. 0969584-7).
Additional Information
For specifications of Unit and I/O power supplies for Slave Terminal, refer to the NX-series
EtherNet/IPTM Coupler Unit User’s Manual (Cat. No. W536).
Additional Information
The system configuration in this document uses USB for the connection between Personal
computer and PLC. For information on how to install the USB driver, refer to A-5 Installing the
USB Driver of the CJ-series CJ2 CPU Unit Hardware User's Manual (Cat. No. W472).
Additional Information
The system configuration in this document uses USB for the connection between Personal
computer and Slave Terminal. For information on how to install the USB driver, refer to A-1
Driver Installation for Direct USB Cable Connection in Appendices of the Sysmac Studio
Version 1 Operation Manual (Cat. No. W504).

6
．
Communications Settings
9
6. Communications Settings
This section describes the contents of the parameter and tag data link settings that are all
defined in this document.
6.1. EtherNet/IP Connection Parameters
The parameters required for connecting PLC to Slave Terminal via EtherNet/IP are shown
below.
<PLC and Slave Terminal Settings>
Item PLC (Node 1) Slave Terminal (Node 2)
IP address
192.168.250.1
192.168.250.2
Subnet mask 255.255.255.0 255.255.255.0
Network interface setting - Enable Tag Data Links
6.2. IO-Link Connection Parameter
The parameter required for connecting IO-Link Master Unit and Photoelectric Sensor via
IO-Link is shown below.
In this document, Photoelectric Sensor is connected to Port 1 on IO-Link Master Unit.
<IO-Link Master Unit Setting>
Item
Set value
Port1 IO-Link Device Configuration Data / Master Control
IO-Link Mode (Default)
6.3. Slave Terminal Configuration
The Slave Terminal configuration is shown below.
<Slave Terminal Configuration and Device Names>
NX Unit number
Name
Model
0
EtherNet/IP Coupler Unit
NX-EIC202
1
IO-Link Master Unit
NX-ILM400
0
1

6
．
Communications Settings
10
6.4. Tag Data Link Settings
The I/O data (process data) for Photoelectric Sensor are allocated to the tag data links for
Slave Terminal.
The following shows the content of the tag data link settings for Slave Terminal.
Output area Input area
D10000
D10003
(PLC to Slave Terminal)
8 bytes
D10100
D10107
(Slave Terminal to PLC)
16 bytes
■Output area (PLC to Slave Terminal)
Address
Bit
Function name
D10000
0 to 15
Port 1 Output Data01
D10001
0 to 15
Port 2 Output Data01
D10002
0 to 15
Port 3 Output Data01
D10003
0 to 15
Port 4 Output Data01
■Input area (Slave Terminal to PLC)
Address
Bit
Function name
D10100
0 to 15
Slave Terminal Status
0 to 3
-
4
Slave Terminal Observation
5
Slave Terminal Minor Fault
6
Slave Terminal Partial Fault
7
Slave Terminal Major Fault
8 to 13
-
14
Error Detection Flag
15
I/.O Refresh Flag
D10101
0 to 15
I/O Port Status
0
Port1 IN Data Enable
1
Port2 IN Data Enable
2
Port3 IN Data Enable
3
Port4 IN Data Enable
4 to 13
-
14
Communication Module Error
15
I/O Power On
D10102
0 to 15
Port1_2 I/O Port Error Status
0
Port1 Communication Error
1
Port1 Short Error
2
Port1 Compare Error
3
Port1 Device IO Size Error
4
Port1 Device Error
5
Port1 Device Information
6
Port1 PDO Error
7
-
8 to 15
Port2 Communication Error (Same status as for Port 1)
D10103
0 to 15
Port3_4 I/O Port Error Status
0 to 7
Port3 Communication Error (Same status as for Port 1)
8 to 15
Port4 Communication Error (Same status as for Port 1)

6
．
Communications Settings
11
D10104 0 to 15
Port 1 Input Data01
<Stores the I/O data for Photoelectric Sensor.>
0 to 7
<Stores Byte0 (PD0).>
8 to 15
<Stores Byte1 (PD1).>
D10105
0 to 15
Port 2 Input Data01
D10106
0 to 15
Port 3 Input Data01
D10107
0 to 15
Port 4 Input Data01
■I/O data (process data) for Photoelectric Sensor
(Data to be stored in the address D10104 listed in the table above)
Byte0 (PD0) Assignment Details
7 6 5 4 3 2 1 0 Monitor output The Sensing data are output as eight
bits (0-255).
Byte1 (PD1) Assignment Details
7 6 5 4 3 2 1 0 Control Output1
0:OFF
1:ON
Control Output2
0:OFF
1:ON
Reserved 0
Instability
Alarm(Non-Light
Receiving)
0:Stable
1:Unstable
Instability
Alarm(Light
Receiving)
0:Stable
1:Unstable
Reserved 0
Warning
Diagnostic output when the sensor
cannot continue operation due to a
recoverable factor such as a load
short-circuit or a service data error
0:Normal (OFF)
1:Error (ON)
Error
Diagnostic output when the sensor has
an internal error such as the
emitting circuit destruction and
replacement is needed
0:Normal (OFF)
1:Error (ON)

7
．
IO-Link Connection Procedure
12
7. IO-Link Connection Procedure
This section describes the procedures for connecting Photoelectric Sensor to IO-Link Master
Unit via IO-Link and for connecting PLC to Slave Terminal configured of IO-Link Master Unit
on the EtherNet/IP network. The explanations of procedures for setting up PLC and Slave
Terminal given in this document are based on the factory default settings.
For the initialization, refer to Section 8. Initialization Method.
7.1. Work Flow
Take the following steps to connect Photoelectric Sensor to IO-Link Master Unit via IO-Link
and to connect PLC to Slave Terminal configured of IO-Link Master Unit on the EtherNet/IP
network.
7.2. Slave Terminal Setup
Set up Slave Terminal.
↓
7.2.1. Hardware Settings
Configure Slave Terminal, set hardware switches,
and connect Photoelectric Sensor.
↓
7.2.2. Starting Sysmac Studio and
Connecting Online with Slave
Terminal
Start Sysmac Studio and connect online with Slave
Terminal.
↓
7.2.3. Setting the Slave Terminal
Configuration Information
Set the Slave Terminal configuration information.
↓
7.2.4. IO-Link Master Unit Setup
Set the parameters for IO-Link Master Unit.
↓
7.2.5. I/O Allocation Settings
Set the I/O allocations for IO-Link Master Unit.
↓
7.2.6. Transferring the Setting Data
Transfer the setting data of Slave Terminal to
EtherNet/IP Coupler Unit.
↓
7.3. PLC Setup
Set up PLC.
↓
7.3.1. Hardware Settings
Set the hardware switches on EtherNet/IP Unit and
wire the network.
↓
7.3.2. Starting CX-Programmer and
Connecting Online with PLC
Start CX-Programmer and connect online with
PLC.
↓
7.3.3. Creating the I/O Table and
Setting the IP Address
Create the I/O table and set the IP address of PLC.
↓

7
．
IO-Link Connection Procedure
13
7.4. Network Settings for Host
Communications
Set the EtherNet/IP tag data links.
↓
7.4.1. Starting Network Configurator
and Connecting Online with
PLC
Start Network Configurator and connect online with
PLC.
↓
7.4.2. Uploading the Network
Configuration
Upload the network configuration.
↓
7.4.3. Setting the Tags
Register tags for input (consume) and output
(produce).
↓
7.4.4. Setting the Connections
Associate the tags of the target device with the
tags of the originator device.
↓
7.4.5. Transferring the Tag Data Link
Parameters
Transfer the set tag data link parameters to PLC.
↓
7.5. IO-Link Communication Status
Check
Confirm that cyclic communications in the IO-Link
system performs normally.
↓
7.5.1. Checking the Connection Status
Check the connection status of each device.
↓
7.5.2. Checking the Receive Data
Check that the correct data are received.

7
．
IO-Link Connection Procedure
14
7.2. Slave Terminal Setup
Set up Slave Terminal.
Hardware Settings7.2.1.
Configure Slave Terminal, set hardware switches, and connect Photoelectric Sensor.
Precautions for Correct Use
Make sure that the power supply is OFF when you set up.
1
Make sure that EtherNet/IP
Coupler Unit and IO-Link Master
Unit are powered OFF.
*If either of them is ON, the
settings described in the
following steps and subsequent
procedures may not be
applicable.
2
Connect IO-Link Master Unit to
EtherNet/IP Coupler Unit.
3
Check the position of the
hardware switches on
EtherNet/IP Coupler Unit by
referring to the figure on the
right.
IO-Link Master Unit
End Cover
EtherNet/IP Coupler Unit
Rotary switches
Dip switch

7
．
IO-Link Connection Procedure
15
4
Check that Dip switch is set as
follows:
SW3 NET: OFF
SW4 ADR: OFF
*The tag data links become
enabled, and the first to third
octets of the IP address are set
to 192.168.250.
*The forth octet of the IP
address is set by Rotary
switches.
Pin
Name
Meaning
Pin 1
Reserved by the system
Keep turned OFF
(The factory setting is OFF)
Pin 2
Pin 3
Network interface setting
ON: Enable UDP/IP communications and TCP/IP
communications(disable Tag Data Links)
OFF: Enable Tag Data Links (disable UDP/IP
communications and TCP/IP communications)
Pin 4
IP address base setting
ON: 192.168.1.[] (with [] set by rotary switches)
OFF: 192.168.250.[] (with [] set by rotary switches)
5
Set Rotary switches as follows:
x161: 0
x160: 2
*The IP address is set to
192.168.250.2.
6
Connect Switching hub and
Communications connector
(Port 1) on EtherNet/IP Coupler
Unit with a LAN cable.
LAN cable
Communications connector
(Port 1)
Switching hub

7
．
IO-Link Connection Procedure
16
7
Connect Unit power supply and
I/O power supply to Unit power
supply terminals and I/O power
supply terminals on EtherNet/IP
Coupler Unit, respectively.
*For connecting the power
supplies for NX-series Slave
Terminals, refer to NX-series
EtherNet/IPTM Coupler Unit
User’s Manual (Cat. No.
W536).
8
Connect Switching hub power
supply to Switching hub.
*For connecting Switching hub
power supply, refer to the
Switching Hub W4S1-series
Users Manual (Cat. No.
0969584-7).
9
Connect Photoelectric Sensor to
Port 1 on IO-Link Master Unit.
Switching hub power supply
Black
White
Brown
Blue
Photoelectric Sensor
IO-Link
Master Unit
Port 1
Unit power supply
I/O power supply
Unit power supply terminals
I/O power supply terminals
NX-ILM400

7
．
IO-Link Connection Procedure
17
Starting Sysmac Studio and Connecting Online with Slave Terminal7.2.2.
Start Sysmac Studio and connect online with Slave Terminal.
Install Sysmac Studio and the USB driver on Personal computer beforehand.
1
Connect the peripheral USB
port on Slave Terminal to
Personal computer with a USB
cable.
2
Turn ON Unit power supply for
Slave Terminal.
*The I/O power supply for Slave
Terminal remains OFF.
3
Start Sysmac Studio.
*If the User Account Control
Dialog Box is displayed at
start, make a selection to start
Sysmac Studio.
4
Sysmac Studio starts.
Click New Project.
5
The Project Properties Dialog
Box is displayed.
Enter a project name.
*In this document, New Project
is used as the project name.
Select the following device
category and the device to use
in the Select Device Area.
・Category: Slave Terminal
・Device: EtherNet/IP Coupler
Click
Create
.
Peripheral
(USB) port
Photoelectric Sensor
Slave Terminal
Switching hub
Personal computer
USB
cable