Omron V400-R2 Series Instruction Manual

Machine Automation Controller NJ-series
General-purpose Serial
Connection Guide
(RS-232C)
OMRON Corporation
Ultra Small Multi-code Reader
(V400-R2 Series)
P567-E1-01

About Intellectual Property Rights and Trademarks
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EtherCAT®is registered trademark and patented technology, licensed by Beckhoff Automation
GmbH, Germany.
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. Remarks..................................................................................................... 3
4. Overview .................................................................................................... 5
5. Applicable Devices and Device Configuration ....................................... 6
5.1. Applicable Devices............................................................................. 6
5.2. Device Configuration.......................................................................... 7
6. Serial Communications Settings ............................................................. 9
6.1. Serial Communications Settings........................................................ 9
6.2. Cable Wiring Diagram...................................................................... 10
6.3. Example of Connection Check......................................................... 12
7. Connection Procedure............................................................................ 13
7.1. Work Flow........................................................................................ 13
7.2. Setting UP the Code Reader............................................................ 15
7.3. Setting Up the Controller.................................................................. 16
7.4. Checking the Serial Communications .............................................. 34
8. Initialization Method................................................................................ 40
8.1. Initializing the Controller................................................................... 40
8.2. Initializing the Code Reader............................................................. 41
9. Program.................................................................................................... 42
9.1. Overview.......................................................................................... 42
9.2. Communications sequence.............................................................. 46
9.3. Error Detection Processing.............................................................. 47
9.4. Variables.......................................................................................... 48
9.5. ST Program...................................................................................... 51
9.6. Protocol macro data......................................................................... 56
9.7. Timing Charts................................................................................... 63
9.8. Error processing............................................................................... 64
10. Revision History .................................................................................. 66

1. Related Manuals
1
1. Related Manuals
The table below lists the manuals related to this document.
To ensure system safety, make sure to always read and heed the information provided in all
Safety Precautions, Precautions for Safe Use, and Precaution for Correct Use of manuals for
each device which is used in the system.
Cat. No. Model Manual name
W500 NJ501-[][][][]
NJ301-[][][][] NJ-series CPU Unit Hardware User's Manual
W501 NJ501-[][][][]
NJ301-[][][][] NJ-series CPU Unit Software User's Manual
W494 CJ1W-SCU[]2 CJ-series Serial Communications Units
Operation Manual for NJ-series CPU Unit
W504 SYSMAC-SE2[][][] Sysmac Studio Version 1 Operation Manual
W344 CXONE-AL[][]C-V4
/AL[][]D-V4 CX-Protocol Operation Manual
W502 NJ501-[][][][]
NJ301-[][][][] NJ-series Instructions Reference Manual
Z333 V400-R2 Series Ultra Small Multi-code Reader
V400-R2 Series User’s Manual

2. Terms and Definitions
2
2. Terms and Definitions
Term Explanation and Definition
Protocol macro A protocol macro is a function that stores a data send/receive procedure
(protocols) in a Serial Communications Board or Serial Communications
Unit to exchange data with general-purpose external devices by
executing the ExecPMCR instruction on the CPU Unit.
Protocol A unit of independent communication processing with a specific
general-purpose device. A protocol includes a data send/receive
procedure. A protocol consists of multiple sequences.
Sequence A unit of the independent communication processing which can be
started by executing the ExecPMCR instruction of a program.A
sequence that is started will execute steps registered in its own
sequence.
Step A unit to execute any one of the followings: message send processing,
message receive processing, message send/receive processing, clear
receive buffer, or step wait. Up to 15 steps can be set per sequence.
Send message A communication frame (command) sent to the external general-purpose
device. A send message is read from the step in the sequence, and sent
to the external general-purpose device.
Receive message A communication frame (response) sent from the external
general-purpose device. A receive message is read from the step in the
sequence and is compared with data received from the general-purpose
external device.
Matrix A matrix is used when a general-purpose external device sends multiple
types of communications frames (responses). More than one
communication frame can be registered in one matrix.
Case A unit to register multiple communication frames (response) to a matrix.
One communication frame is registered as one case. Up to 15 types of
cases can be registered per matrix.
AT
(AT specification) This attribute allows the user to specify an address assigned to a variable. An I/O port or an address in memory used for CJ-series Units
can be specified.

3. Remarks
3
3. Remarks
(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 safety
circuit in order to ensure safety and minimize risks of abnormal occurrence.
(2) To ensure system safety, always read and heed the information provided in all Safety
Precautions, Precautions for Safe Use, and Precaution for Correct Use of manuals for
each device 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 September 2013. It is subject
to change without notice for improvement.

3. Remarks
4
The following notation is used in this document.
Indicates a potentially hazardous situation which, if not avoided,
will result in minor or moderate injury, or may result in serious
injury or death. Additionally there may be significant property
damage.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or in property damage.
Precautions for Safe Use
Precautions on what to do and what not to do to ensure safe usage of the product.
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

4. Overview
5
4. Overview
This document describes the procedure for connecting OMRON Corporation's Ultra Small
Multi-code Reader (V400-R2 series) (hereinafter referred to as the Code Reader) with
NJ-series Machine Automation Controller (hereinafter referred to as the Controller) via serial
communications, and describes the procedure for checking their connection.
Refer to the serial communications settings of the prepared Sysmac Studio project file and
understand the setting method and key points to connect the devices via serial
communications.
The user program in the Sysmac Studio project file and the protocol macro data in the
CX-Protocol project file are used to check the serial connection by executing the "Reading
Trigger" command on the Code Reader.
Prepare the latest Sysmac Studio project file and the CX-Protocol project file beforehand. To
obtain the files, contact your OMRON representative.
Name File name Version
Sysmac Studio project file
(extension: smc) OMRON_V400-R2_PMCR232C_EV100.smc Ver.1.00
CX-Protocol project file
(extension: psw) OMRON_V400-R2_PMCR_EV100.psw Ver.1.00
*Hereinafter, the Sysmac Studio project file is referred to as the "project file"
The user program in the project file is referred to as the "program"
The CX-Protocol project file is called the "Protocol macro data"
This document aims to explain the wiring method and communications settings
necessary to connect the corresponding devices and provide the setting
procedure. The program used in this document is designed to check if the
connection was properly established and is not designed to be constantly used at
a site. Therefore, functionality and performances are not sufficiently taken into
consideration. When you construct an actual system, please use the wiring
method, communications settings and setting procedure described in this
document as a reference and design a new program according to your application
needs.

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 NJ-series CPU Unit NJ501-[][][][]
NJ301-[][][][]
OMRON Serial Communications Unit CJ1W-SCU[]2
OMRON Ultra Small Multi-code Reader V400-R2CF[][][]
Precautions for Correct Use
As applicable devices above, the devices with the models and versions listed in Section 5.2.
are actually used in this document to describe the procedure for connecting devices and
checking the connection.
You cannot use devices with versions lower than the versions listed in Section 5.2.
To use the above devices with versions not listed in Section 5.2 or versions higher than those
listed in Section 5.2, check the differences in the specifications by referring to the manuals
before operating the devices.
Additional Information
This document describes the procedure to establish the network connection. Except for the
connection procedure, it does not provide information on operation, installation or wiring
method. It also does not describe the functionality or operation of the devices. Refer to the
manuals or contact your OMRON representative.

5. Applicable Devices and Device Configuration
7
5.2. Device Configuration
The hardware components to reproduce the connection procedure of this document are as
follows:
Manufact
urer Name Model Version
OMRON Serial Communications Unit CJ1W-SCU42 Ver.2.0
OMRON NJ-series CPU Unit NJ501-1500 Ver.1.05
OMRON Power Supply Unit NJ-PA3001
OMRON Sysmac Studio SYSMAC-SE2[][][] Ver.1.06
OMRON CX-Protocol (Included in Sysmac
Studio.) Ver.1.97
OMRON Sysmac Studio project file OMRON_V400-R2_PMC
R232C_EV100.smc Ver.1.00
OMRON CX-Protocol project file OMRON_V400-R2_PMC
R_EV100.psw Ver.1.00
- Personal computer (OS: Windows7) -
- USB cable
(USB 2.0 type B connector) -
OMRON Ultra Small Multi-code Reader V400-R2CF65
OMRON Special cable (RS-232C) V509-W011
- 5 VDC power supply -
Precautions for Correct Use
Prepare the latest project file and protocol macro data in advance.
To obtain the files, contact your OMRON representative.
Precautions for Correct Use
Update the Sysmac Studio and CX-Protocol to the versions specified in this section or higher
versions using the auto update function. If a version not specified in this section is used, the
procedures described in Section 7 and subsequent sections may not be applicable. In that
case, use the equivalent procedures described in the Sysmac Studio Version 1 Operation
Manual (Cat. No. W504) and the CX-Protocol Operation Manual (Cat. No. W344).
NJ501-1500
CJ1W-SCU42
Personal computer
（Sysmac Studio
installed,
OS: Windows 7)
USB cable
Special cable (RS-232C)
V509-W011
Code Reader
V400-R2CF65
5 VDC power supply

5. Applicable Devices and Device Configuration
8
Additional Information
It may not be possible to reproduce the same operation with different devices or versions.
Check the configuration, model and version. If they are different from your configuration,
contact your OMRON representative.
Additional Information
For information on the special cable (V509-W011), refer to Cable for programmable controller
connection made by OMRON (V509-W011) in Specifications and External Dimension in
Section 5 Appendix of the Ultra Small Multi-code Reader V400-R2 Series User's Manual
(Cat. No. Z333).
Additional Information
The system configuration in this document uses USB for the connection to the Controller. For
information on how to install a USB driver, refer to A-1 Driver Installation for Direct USB Cable
Connection of the Sysmac Studio Version 1 Operation Manual (Cat. No. W504).

6. Serial Communications Settings
9
6. Serial Communications Settings
This section describes the specifications such as communication parameters and wiring that
are defined in this document.
Additional Information
To perform communications without using the settings described in this section, you need to
modify the program. For information on the program, refer to Section 9. Program.
6.1. Serial Communications Settings
The serial communications settings are shown below.
Setting item Serial Communications Unit Code Reader
Device name J01 -
Unit number 0 -
Communications
(connection) port Port 2 (RS-232C) -
Serial communications mode Protocol macro -
Data length 8 bits 8 bits (Default)
Stop bit 1 bit 1 bit (Default)
Parity None None (Default)
Transmission rate (Baud rate) 9,600 bps (Default) 9,600 bps (Default)
Protocol macro transmissions Full-duplex -
Header - None (Default)
Footer - <CR> (Default)
Number of digit output - None (Default)
RS/CS control - None (no protocol system)
(Default)
CS waiting time - Not limited (Default)
ACK/NAK waiting time - Not limited (Default)
Precautions for Correct Use
This document describes the setting procedure of the CJ1W-SCU42 Serial Communications
Unit with unit number 0, communications (connection) port 2, and device name J01. To
connect devices under different conditions, change the variable names and setting values
used in the program by referring to 9. Program.

6. Serial Communications Settings
10
6.2. Cable Wiring Diagram
For details on the cable wiring, refer to Section 3 Installation and Wiring of the CJ-series Serial
Communications Units Operation Manual for NJ-series CPU Unit (Cat. No. W494).
Check the connector configuration and pin assignment before wiring.
You do not need to make a cable when you use the special cable (V509-W011).
■Connector configuration and pin assignment
<CJ1W-SCU42>Applicable connector: D-sub 9 pin
<V400-R2CF65> Applicable connector: DIN 8 pin

6. Serial Communications Settings
11
■Cable/Pin assignment
CJ1W-SCU42 Serial
Communications Unit
Ultra Small Multi-code Reader
(V400-R2CF65)
Signal
name Pin No. Pin No. Signal name
FG 1 1 SD
SD 2 2 RD
RD 3 3 RS
RS 4 4 CS
CS 5 5 TRIG
5V 6 6 NC
DR 7 7 S.GND
ER 8 8 VCC
SG 9
RS-232C
interface
FG Shell
RS-232C
interface
D-SUB 9-pin
Cable connector type: Male DIN 8-pin
Cable connector type: Female
■Recommended parts for the connector
When you make a connection cable, use the following connectors to connect it to the
connector of the Code Reader.
■Special cable
The special cable (V509-W011) is used in this document.
+5V
0V
External trigger
NJ501-1500
CJ1W-SCU42
Code Reader
V400-R2CF65
Special cable (V509-W011)
5 VDC
power
supply
Code Reader
V400-R2CF65
NJ501-1500
CJ1W-SCU42
Connection Cable
*The external trigger is not used in this document. Insulate it from other cables.
*Connect +5V and 0V to the external power supply.
*The external trigger is not used in this document. Insulate it from other cables.
*Connect +5V and 0V to the external power supply.

6. Serial Communications Settings
12
6.3. Example of Connection Check
This document shows an example of an ST (structured text) program and protocol macro data
in which the Controller sends/receives the message to/from the Code Reader.
The Controller and the Code Reader send and receive the message of "Reading Trigger
(sequence No. 900)". The following figure outlines the sequence operation.
●Overview of sequence operation
(1) The ST program executes the protocol macro instruction (ExecPMCR instruction) for
which sequence No. 900 of protocol macro data is specified
(2) The Reading Trigger command (sequence No. 900) is selected from the protocol macro
data, and it is sent to the Code Reader.
(3) The Code Reader executes the command according to the send data from the
Controller.
(4) The Controller receives the result of the command executed by the Code Reader, and
then stores in the specified variable.
Controller
CPU Unit Serial Communications Unit RS-232C Code Reader
Project file
Send data
Receive data
ST Program
IF …. THEN
……….
ELSE
……….
END_IF;
ExecPMCR(….
Protocol macro
data
Sequence No.1
Sequence No.2
Se
q
uence No.900
Output_RecvData
Receive data
storage area
(1) Executing the protocol
macro instruction
(Specifying sequence No.900) (2) Reading Trigger
(Sequence No.900)
(3) Executing the
command
(4) Receiving the
execution result of
the command and
storing it in the
specified variable

7. Connection Procedure
13
7. Connection Procedure
This section describes the procedure for connecting the Code Reader to the Controller via
serial communications. This document explains the procedures for setting up the Controller
and the Code Reader from the factory default setting. For the initialization, refer to Section 8
Initialization Method.
7.1. Work Flow
Take the following steps to connect the Code Reader to the Controller via serial
communications.
7.2. Setting Up the Code Reader Set up the Code Reader.
↓
7.2.1. Cable Connection Connect a cable to the Code Reader.
↓
7.3. Setting Up the Controller Set up the Controller.
↓
7.3.1. Hardware Settings Set the hardware switches on the Serial
Communications Unit.
↓
7.3.2. Starting the Sysmac Studio and
Importing the Project File Start the Sysmac Studio and import the project file.
↓
7.3.3. Checking the Parameters and
Building Check the parameters that are set, execute the program check on the project data and build the
Controller.
↓
7.3.4. Connecting Online and
Transferring the Project Data Connect online with the Sysmac Studio and transfer the project data to the Controller.
↓
7.3.5. Transferring the Unit Settings Transfer the setting data of the Serial
Communication Unit.
↓
7.3.6. Starting the CX-Protocol and
Opening the Protocol Macro
Data
Start the CX-Protocol and open the protocol macro
data.
↓
7.3.7. Connecting Online and
Transferring the Protocol Macro
Data
Connect online with the CX-Protocol, and transfer
the protocol macro data to the Serial
Communications Unit.
↓
7.4. Checking the Serial
Communications Execute the program and confirm that serial communications are normally performed.
↓
7.4.1. Starting the Trace Start tracing with the CX-Protocol.
↓
7.4.2. Executing the Program Execute the program with the Sysmac Studio.
↓

7. Connection Procedure
14
7.4.3. Checking the Trace Data Confirm that the correct data is sent and received by
checking the trace data of the CX-Protocol.
↓
7.4.4. Checking the Receive Data Confirm that the correct data are written to the
variables of the Controller with the Sysmac Studio.

7. Connection Procedure
15
7.2. Setting UP the Code Reader
Set up the Code Reader.
7.2.1. Cable Connection
Connect a cable to the Code Reader.
1 Connect the special cable
(V509-W011) to the Code
Reader.
Connect the 5 VDC power
supply to the special cable and
turn ON the power supply.
Precautions for Correct Use
This document explains the procedures for setting up the Code Reader from the factory
default setting. If the Code Reader was changed from the factory default setting, make sure
to initialize by referring to Section 8.2. Initializing the Code Reader.
Additional Information
For details on the factory default setting of the Code Reader, refer to Factory default setting in
Return to the factory default setting in Menu Sheet/Command List in Section 4 Setting
Method of the Ultra Small Multi-code Reader V400-R2 Series User's Manual (Cat. No. Z333).
Special cable
(V509-W011) 5 VDC power supply
Code Reader
(V400-R2CF65)

7. Connection Procedure
16
7.3. Setting Up the Controller
Set up the Controller.
7.3.1. Hardware Settings
Set the hardware switches on the Serial Communications Unit.
Precautions for Correct Use
Make sure that the power supply is OFF when you perform the setting up.
1 Make sure that the power supply
to the PLC is OFF.
*If the power supply is turned
ON, settings may not be
applicable as described in the
following procedure.
Check the hardware switches
located on the front panel of the
Serial Communications Unit by
referring to the right figure
Check the connector for Port 2
(RS-232C) by referring to the
right figure.
*This setting is required to use
Port 2 of the Serial
Communications Unit.
2 Set the Unit No. Switch to 0.
(The unit number is set to 0 as
the factory default setting.)
3 Connect the Serial
Communications Unit to the
Controller as shown on the right.
Connect the special cable for
the Code Reader to the Serial
Communications Unit.
Connect the personal computer
to the Controller with a USB
cable.
Special cable
Serial Communications Unit
USB cable
Controller
End Cover
Power Supply Unit Code Reader
Personal
computer

7. Connection Procedure
17
7.3.2. Starting the Sysmac Studio and Importing the Project File
Start the Sysmac Studio and import the project file.
Install the Sysmac Studio and USB driver in the personal computer beforehand.
1 Confirm that the personal
computer and the Controller are
connected with the USB cable
and turn ON the power supply to
the Controller.
Start the Sysmac Studio. Click
the Import Button.
*If a confirmation dialog for an
access right is displayed at
start, select to start.
2 The Import File Dialog Box is
displayed. Select
OMRON_V400-R2_PMCR232C
_EV100.smc and click the
Open Button.
*Obtain the project file from
OMRON.
3 The
OMRON_V400-R2_PMCR232C
_EV100 project is displayed.
The left pane is called Multiview
Explorer, the right pane is called
Toolbox and the middle pane is
called Edit Pane.
*If an error message is displayed
stating "Failed to Load
Descendants", change the
version of the Sysmac Studio to
the version specified in 5.2.
Device Configuration or higher
version.
Edit Pane ToolboxMultiview
Explore
r