Contec CPSN-PCB271-S1-041 Reference guide

Reference Manual

(Software)

CONTENTS

CODESYS Modbus Master CPU Unit

CPSN-PCB271-S1-041

Introduction .................................................................. 5

Safety Precautions .................................................... 11

Set the Computer Network ................................... 15

CONPROSYS nano WEB Setting.......................... 21

CODESYS Installation .............................................. 49

Basic Programming .................................................. 55

Programing with CODESYS ................................... 76

Maintenance ............................................................ 133

Troubleshooting ..................................................... 137

Appendix ................................................................... 140

Customer Support and Inquiry ......................... 152

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Table of Contents

Introduction ....................................................................... 5

1. Procedure until ready to use .............................................................................................................................. 6

2. Related manuals ...................................................................................................................................................... 7

3. Check the firmware version ................................................................................................................................ 8

4. About the product ................................................................................................................................................. 9

5. Features ................................................................................................................................................................... 10

Safety Precautions ........................................................... 11

1. Safety Information............................................................................................................................................... 12

2. Handling Precautions ......................................................................................................................................... 13

3. Security Warning .................................................................................................................................................. 14

1. Information security risks ........................................................................................................................... 14

2. Security measures – e.g. ............................................................................................................................. 14

Set the Computer Network ............................................ 15

1. Connect with a PC ............................................................................................................................................... 16

2. Set the Computer Network.............................................................................................................................. 17

1. Computer Network Setting Procedure (for Windows 10)............................................................. 17

3. Check Communication ...................................................................................................................................... 20

CONPROSYS nano WEB Setting ..................................... 21

1. CONPROSYS nano WEB Setting Outline .................................................................................................... 22

1. Setup Using a Web Browser ..................................................................................................................... 22

2. Setting the Browser ...................................................................................................................................... 22

3. Start up CONPROSYS nano WEB Setting............................................................................................. 23

4. CONPROSYS nano WEB Setting Basic Operation............................................................................. 24

2. Menu Function List ............................................................................................................................................. 25

3. Function Details.................................................................................................................................................... 26

1. System ............................................................................................................................................................... 26

2. I/O Module ...................................................................................................................................................... 28

3. Network Time ................................................................................................................................................. 33

4. Log ...................................................................................................................................................................... 34

5. System ............................................................................................................................................................... 35

6. Log Information ............................................................................................................................................. 37

7. Firmware Update ........................................................................................................................................... 39

8. Configuration File ......................................................................................................................................... 40

9. Time Adjustment ........................................................................................................................................... 41

10. Default Setting ............................................................................................................................................... 42

11. PLC Program ................................................................................................................................................... 43

12. Save & Reboot ............................................................................................................................................... 44

13. Save .................................................................................................................................................................... 45

14. Reboot ............................................................................................................................................................... 46

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Table of Contents

15. Shutdown ......................................................................................................................................................... 47

16. Logout ............................................................................................................................................................... 48

CODESYS Installation ...................................................... 49

1. Installation of the CODESYS ............................................................................................................................ 50

2. Installation of the Package ............................................................................................................................... 52

3. PC and CONPROSYS nano cable connection ........................................................................................... 53

Basic Programming ......................................................... 55

1. Nomenclature of CODESYS Components .................................................................................................. 56

1. Device window, Device Configuration window ................................................................................. 56

2. ST Editor window .......................................................................................................................................... 56

2. Format and programming of ST language ................................................................................................ 57

3. Basic programming procedure ...................................................................................................................... 59

1. Create a New Project ................................................................................................................................... 59

2. Connect controller from CODESYS ........................................................................................................ 60

3. Add I/O modules ........................................................................................................................................... 61

4. I/O Variable Definition ................................................................................................................................ 62

5. Create a program and build ..................................................................................................................... 63

6. Download and run program ..................................................................................................................... 64

7. Save the PLC program into ROM ............................................................................................................ 65

8. Delete the PLC program saved in ROM ............................................................................................... 67

9. If an error occurs under the CODESYS development environment .......................................... 68

4. Interface definition per model........................................................................................................................ 69

1. Parameter ......................................................................................................................................................... 69

2. I/O Mapping.................................................................................................................................................... 69

3. Serial Port ......................................................................................................................................................... 75

Programing with CODESYS............................................. 76

1. Serial Communication........................................................................................................................................ 77

1. Device setting ................................................................................................................................................. 77

2. Create a Project ............................................................................................................................................. 77

3. Serial Communication Library setting ................................................................................................... 77

4. Create a transmission program ............................................................................................................... 78

5. Create a reception program ..................................................................................................................... 80

2. Modbus Master .................................................................................................................................................... 84

1. Device setting ................................................................................................................................................. 84

2. Create a Project ............................................................................................................................................. 84

3. Add Modbus Devices (When using Modbus TCP) ........................................................................... 85

4. Add Modbus Devices (When using Modbus RTU) .......................................................................... 88

5. Create a Project ............................................................................................................................................. 91

6. Create and build a program ..................................................................................................................... 93

7. Download and run program ..................................................................................................................... 94

3. Modbus Slave........................................................................................................................................................ 95

1. Device setting ................................................................................................................................................. 95

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Table of Contents

2. Create a Project ............................................................................................................................................. 95

3. Add Modbus Devices (When using Modbus TCP) ........................................................................... 96

4. Add Modbus Devices (When using Modbus RTU) .......................................................................... 98

5. I/O Variable Definition .............................................................................................................................. 100

6. Create and build a program ................................................................................................................... 102

7. Download and run program ................................................................................................................... 102

8. Data input and output from Modbus Master .................................................................................. 103

4. File Access............................................................................................................................................................. 106

1. File Access Library setting ........................................................................................................................ 106

2. Function list ................................................................................................................................................... 106

3. Data type ........................................................................................................................................................ 107

4. Function details............................................................................................................................................ 108

5. Sample ............................................................................................................................................................. 113

5. PLC program data retention .......................................................................................................................... 123

1. PERSISTENT Variable Definition ............................................................................................................ 123

2. Sample ............................................................................................................................................................. 124

6. Control Flow of I/O Module .......................................................................................................................... 125

1. CPSN-DI-16BCL............................................................................................................................................ 125

2. CPSN-CNT-3201I ......................................................................................................................................... 129

Maintenance ................................................................... 133

1. Maintenance ........................................................................................................................................................ 134

2. Save a File ............................................................................................................................................................. 135

1. Procedure ....................................................................................................................................................... 135

3. Write a File ........................................................................................................................................................... 136

1. Procedure ....................................................................................................................................................... 136

Troubleshooting ............................................................. 137

1. If You Encounter a Problem? ......................................................................................................................... 138

2. General ............................................................................................................................................................ 138

Appendix ........................................................................ 140

1. Hardware Specifications ................................................................................................................................. 141

2. Software Specifications ................................................................................................................................... 142

1. CPU Unit ......................................................................................................................................................... 142

2. I/O Module .................................................................................................................................................... 144

3. LED........................................................................................................................................................................... 150

4. Push Switch (SW) ............................................................................................................................................... 151

Customer Support and Inquiry .................................... 152

1. Services .................................................................................................................................................................. 153

— 5 —

Introduction

This section provides necessary information of the product

such as the product configuration and manuals before

actual use.

—

Introduction

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 6 —

1. Procedure until ready to use

The following chart shows the standard procedure until the product is ready to use.

Connect with a PC

Refer to

Page 16

Set up the network of PC

Refer to

Page 17

Set up with CONPROSYS nano WEB Setting

Refer to

Page 21

Set Password

Refer to

Page 26

Save the settings

Refer to

Page 44

Set up the product

Refer to Reference

Manual (Hardware)

*This procedure can be different depending on the user's environment or system types.

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Introduction

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 7 —

2. Related manuals

The manuals related to the product are listed below.

Read them as necessary along with this document.

 Must read the following manuals.

Name

When to read

Contents

How to get

Product Guide

Must read this after

opening the package.

This lists the product

configuration and

describes the

precautions.

Included in the package

(Printed matter)

Reference Manual for I/O

Module (Hardware)

Read this when operating

the I/O module with CPU

Unit.

This describes the

hardware aspects such as

functions and settings of

the I/O module.

Download from

the CONTEC

website (PDF)

Reference Manual for

CPSN-PCB271-S1-041

(Hardware)

Read this when operating

the product. functions and

settings.

This describes the

hardware aspects such as

functions and settings.

Download from

the CONTEC

website (PDF)

Reference Manual for

CPSN-PCB271-S1-041

(Software)

Read this when setting up

the "CONPROSYS nano

WEB Setting"

This describes how to set

each function of

"CONPROSYS nano WEB

Setting".

Download from

the CONTEC

website (PDF)

 Download manuals

Download the manuals from the following URL.

Download

https://www.contec.com/download/

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Introduction

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 8 —

3. Check the firmware version

Before running the product, visit our website to check the firmware version and update to the latest

one if necessary.

Updating firmware to the latest version will resolve troubles and stabilize the operation.

Download

https://www.contec.com/download/

* Refer to the “Firmware Update (page 39)” for further details.

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Introduction

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CPSN-PCB271-S1-041 Reference Manual (Software)

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4. About the product

This product is a CPU unit with RS-232C, LAN interface and four expansion slots, and supports

CODESYS programming and Modbus Master. Configurable I/O modules of the CONPROSYS nano

series can be arranged and combined along with the product to satisfy the user’s needs.

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Introduction

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CPSN-PCB271-S1-041 Reference Manual (Software)

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5. Features

 The product features the CODESYS SoftPLC

CODESYS is a device-independent-PLC-programming system that is compliant with the IEC 61131-3 standard and supports all standard

programming languages such as ST or LD.

 Compatible with Modbus TCP Master and Modbus RTU

Master

*1

Modbus is a communication protocol widely adopted in the industrial sector.

Controlling and collecting data from devices with Modbus slave function can be conducted.

*1 When using the product with RS-422A/485 (multi-drop supportable), adding the CPSN-COM-1PD module is necessary.

— 11 —

Safety Precautions

Understand the following definitions and precautions to

use the product safely. Never fail to read them before using

the product.

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Safety Precautions

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 12 —

1. Safety Information

This document provides safety information using the following symbols to prevent accidents

resulting in injury or death and the destruction of equipment and resources.

Understand the meanings of these labels to operate the equipment safely.

DANGER

DANGER indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

WARNING

WARNING indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury or in property damage.

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Safety Precautions

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CPSN-PCB271-S1-041 Reference Manual (Software)

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2. Handling Precautions

CAUTION

 The specifications of the product are subject to change without notice for enhancement and

quality improvement. Even when using the product continuously, be sure to read the manual

in the CONTEC’s website and understand the contents.

 Do not modify the software.

CONTEC will bear no responsibility for any problems, etc., resulting from modifying the

software.

 Regardless of the foregoing statement, CONTEC assumes no responsibility for any errors that

may appear in this document or for results obtained by the user as a result of using the

software.

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Safety Precautions

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 14 —

3. Security Warning

When connecting to the network, be aware of security-related problems. See the examples of

Security measures below and set up the product properly along with the network devices.

1. Information security risks

 Unauthorized access from the outside through a network could cause the system halt, data

damage, or exposure to malware. *1

 Invaded and used as a stepping stone, a device might attack the others through networks. (a

victim becomes an assailant)

 Information might leak without realizing due to the connection to the network.

 Secondary damages such as harmful rumors, liability in damages, social credibility fall, and

opportunity loss are expected led by the troubles described above.

*1: Malware (Malicious Software) is software that brings harm to a computer system and performs

unintended operations.

2. Security measures – e.g.

 Do not keep using the default password. (Refer to the product manual for the password

setting).

 Set a strong password.

Combined with upper and lowercase letters, and numbers so that it cannot be easily

analogized by others.

 Change the password periodically.

 Disable unnecessary network services and functions.

 Restrict access to the network with network devices. *2

 Restrict ports to be released on the network with network devices. *2

 Create a closed network connection using such as dedicated network or VPN*3

*2: Inquire for setting procedure to manufacturers.

*3: VPN (Virtual Private Network) a secured network that wards off unauthorized access by

protecting the communication path with authentication and encryption.

Unfortunately, there are no perfect ways to avert unauthorized access or close a security hole

that are endlessly found day and night.

Please understand that risks are always involved with the Internet connection, and we strongly

recommend a user should constantly update information security measures.

— 15 —

Set the Computer

Network

This section describes how to connect the product with a

PC, set the network, and check the communication.

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Set the Computer Network

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CPSN-PCB271-S1-041 Reference Manual (Software)

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1. Connect with a PC

To set the product, you need to first set up the network between the PC and the product in order to

establish communication.

First, connect the product with the PC.

1 Follow the instructions below to connect the computer, the controller, and the power unit.

* Refer to “Reference Manual (Hardware)” for how to create a power cable.

2 Connect the power unit with AC plug, then turn on the computer.

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Set the Computer Network

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 17 —

2. Set the Computer Network

Follow the “Computer Network Setting Procedure” described below and set the network to make the

IP addresses as shown.

The product must set a unique IP address for the bold part (200 or 101) that is not used by other

devices on your network.

* If proxy is set to your PC, do not use the proxy.

1. Computer Network Setting Procedure (for Windows 10)

1 Click the [Network & Internet] on [Windows Settings] screen.

2 Click the [Change adapter options] in [Network status].

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Set the Computer Network

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CPSN-PCB271-S1-041 Reference Manual (Software)

— 18 —

3 Double-click the appeared [Ethernet]

4 Click the [Property] in [Ethernet Status] dialog box.

5 Double-click the [Internet protocol version 4(TCP/IPv4)] in [Ethernet Properties] dialog box.

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Set the Computer Network

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CPSN-PCB271-S1-041 Reference Manual (Software)

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6 In the [Internet protocol version 4 (TCP/IPv4) property], set IP address and Subnet mask as

shown below.

7 Click the [OK] → the [OK] → the [Close] to close the dialog box and complete the network

setting.

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Set the Computer Network

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CPSN-PCB271-S1-041 Reference Manual (Software)

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3. Check Communication

1 Start the Internet Explorer 11 on your computer. Enter IP address (10.1.1.101) of the controller

in the address bar, then press [Enter] key.

The dialog box asking for the Password appears, enter it and click the [Login].

* Refer to “Setup Using a Web Browser (page 22) for details of compatible web browser.

* For an actual operation, change Password in [Settings] – [System] on CONPROSYS nano WEB

Setting page.

* After entering IP address and pressing [Enter] key, the “Security certificate” might appear on the

screen. Choose “Continue to this website”.

2 If CONPROSYS nano WEB Setting page appears, it indicates the success of the communication

between the computer and the controller.

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Contec CPSN-PCB271-S1-041 Reference guide

Contec CPSN-PCB271-S1-041 Reference guide

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