ICP DAS UA-7504M, UA-7526M, UA-7555M, UA-7560M User Manual

Download

OPC UA I/O User Manual

V2.0, 2020/09

UA-7000 Series IIoT OPC UA I/O Module

UA-7555M

UA-7560M

UA-7504M

UA-7526M

Technical support: service@icpdas.com

Technical Editor: Tim Chen

Editor: Eva Li

OPC UA I/O Series User Manual V2.0 – ICP DAS

Warranty

All products manufactured by ICP DAS are under warranty regarding defective materials for a period of one year, beginning from the date of delivery to the original purchaser.

Warning

ICP DAS assumes no liability for any damage resulting from the use of this product. ICP DAS reserves the right to change this manual at any time without notice. The information furnished by ICP DAS is believed to be accurate and reliable. However, no responsibility is assumed by ICP DAS for its use, not for any infringements of patents or other rights of third parties resulting from its use.

Trademark

The names used for identification only may be registered trademarks of their respective companies.

If you have any problem, please feel free to contact us. You can count on us for quick response. Email: service@icpdas.com For more product information please refer to website: www.icpdas.com

OPC UA I/O Series User Manual V2.0 – ICP DAS

Revision History

This chapter provides revision history information to this document.

The table below shows the revision history.

Revision

Date

Description

V1.0

06/2020

Initial issue

1. Release new DIO models: UA-7555M/UA-7560M

2. Provide OPC UA and MQTT communication functions

V2.0

09/2020

1. Release new AIO models: UA-7504M/UA-7526M

2. Provide new functions: Scaling

OPC UA I/O Series User Manual V2.0 – ICP DAS

Content of Table

Revision History ................................................................................................................ 3

Content of Table ................................................................................................................ 4

1. UA I/O Introduction: .................................................................................................... 7

1.1 Introduction ............................................................................................................ 7

1.2 Features ................................................................................................................ 8

1.3 Selection Guide ..................................................................................................... 9

1.4 Specifications....................................................................................................... 10

1.4.1 Software Specifications (Series Common) ............................................................ 10

1.4.2 UA-7555M Specifications ...................................................................................... 11

1.4.3 UA-7560M Specifications ...................................................................................... 12

1.4.4 UA-7504M Specifications ...................................................................................... 13

1.4.5 UA-7526M Specifications ...................................................................................... 14

1.5 Wire Connections / Pin Assignments ................................................................... 15

1.5.1 UA-7555M Wire Connections / Pin Assignments .................................................. 15

1.5.2 UA-7560M Wire Connections / Pin Assignments .................................................. 16

1.5.3 UA-7504M Wire Connections / Pin Assignments/Jumper Pic ................................ 17

1.5.4 UA-7526M Wire Connections/Pin Assignments/Jumper Pic .................................. 18

1.6 Dimensions .......................................................................................................... 19

1.6.1 UA-7555M/UA-7560M/UA-7504M/UA-7526M Dimensions ................................... 19

2. Quick Start: Hardware/Network Connection ...........................................................20

2.1. Hardware Connection .......................................................................................... 20

2.1.1. Preparations for Devices .................................................................................... 20

2.1.2. AI/AO Jumper Setting ........................................................................................ 20

2.1.3. Hardware Wiring ................................................................................................ 22

2.2. Network Connection ............................................................................................ 23

2.2.1. Connection by Factory Default Settings (For New UA) ....................................... 24

2.2.2. Connection by Utility Searching .......................................................................... 26

3. Main Function Settings .............................................................................................30

3.1 Settings for Using OPC UA Connection ................................................................. 31

3.1.1 OPC UA Server Connection Settings (UA I/O) ...................................................... 32

3.1.2 OPC UA Client Side: InduSoft Simple Application................................................. 33

3.1.3 Secure Encrypted Connection: OPC UA Certificate .............................................. 34

3.2 Settings for Using MQTT Connection .................................................................... 35

3.2.1 Connecting to MQTT Broker ................................................................................. 36

3.2.2 MQTT Client Setting of the UA I/O ........................................................................ 37

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.2.3 Secure Encrypted Connection: MQTT Certificate ................................................. 42

4. Main Menu: Parameter Descriptions ........................................................................43

4.1 Main Menu - System Setting .................................................................................. 43

4.1.1 Overview .............................................................................................................. 43

4.1.2 Network Setting .................................................................................................... 44

Network Setting (LAN) .......................................................................... 44

Hostname Setting ................................................................................. 45

4.1.3 Time Setting ......................................................................................................... 46

Date and Time Display ......................................................................... 46

Set the time manually ........................................................................... 47

4.1.4 Account Setting .................................................................................................... 48

4.1.5 I/O Setting............................................................................................................. 49

Digital Input .......................................................................................... 49

Digital Output ........................................................................................ 50

Analog Input ......................................................................................... 51

Analog Output ...................................................................................... 52

4.1.6 I/O Status ............................................................................................................. 53

Digital Input .......................................................................................... 53

Digital Output ........................................................................................ 54

Analog Input ......................................................................................... 55

Analog Output ...................................................................................... 56

4.1.7 Firmware Setting................................................................................................... 57

Restore Factory Setting ........................................................................ 57

Update Firmware .................................................................................. 59

4.2 Main Menu - OPC UA Setting ................................................................................ 61

4.2.1 Server Setting ....................................................................................................... 62

4.2.2 Certificate ............................................................................................................. 63

4.3 Main Menu – MQTT Setting ................................................................................... 64

4.3.1 Connection Setting ............................................................................................... 64

4.2.2 Client Setting ........................................................................................................ 65

4.3.3 Certificate ............................................................................................................. 68

4.4 Main Menu – Advanced Setting ............................................................................. 70

4.4.1 Scaling .................................................................................................................. 70

5. Recovering Firmware Setting (Reset) ......................................................................71

Appendix A. Menu Path Diagram Description ...............................................................73

OPC UA I/O Series User Manual V2.0 – ICP DAS

Appendix B. MQTT JSON Format of the UA Series.......................................................74

Appendix C. How to Change OS Password? .................................................................75

OPC UA I/O Series User Manual V2.0 – ICP DAS

1. UA I/O Introduction:

UA I/O series is a series of OPC UA I/O modules, also known as UA-7000. The main model is UA-75xxM.

This series built-in provides the communication protocol functions of the Industrial Internet of Things (IIoT), including OPC UA Server and MQTT Client functions. It allows user to choose the network communication method according to the needs and environment, and directly transfer the value of the I/O channel to the cloud IT system or the field-side control system to read and write the I/O data.

1.1 Introduction

OPC UA I/O modules is a series of Ethernet I/O modules that built-in with the OPC UA Server and MQTT Client services. The OPC UA I/O module, also called UA I/O or UA-7000, supports the OPC UA server and

UA I/O Series provides a Web-based User Interface (Web UI) to configure the module, control the output channels, monitor the connection, and I/O status via a normal web browser. It is easy, fast, and no extra APP needed.

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.2 Features

 Built-in OPC UA Server Service

Compliance with IEC 62541 Standard. Provides functions of Active Transmission, Transmission Security Encryption (SSL/TLS), User Authentication (X.509 Certificates / Account password), Communication Error Detection and Recovery, etc. to connect SCADA or OPC UA Clients. Recommend to keep the maximum number of sessions within 3 connections.

 Built-in MQTT Client Service

Build-in MQTT Client Service (Compliance with MQTT V.3.1.1 protocol). Provides functions of IoT Active M2M Transmission, QoS (Quality of Service), Retains Mechanism, Identity Authentication, Encryption, Last Will, etc.

 Support Scaling

AI/O modules support Scaling. Let the analog signal be converted into a more readable value.

 Built-in Web Server to Provide the Web User Interface

 Built-in I/O Channels

UA I/O series has built-in AI, AO, DI, or DO channels, which is convenient for users to choose different models according to different needs.

 2-port Ethernet Switch for Daisy-Chain Topology

The cabling of Daisy-Chain Topology is much easier and total costs of cable and switch are significantly reduced.

 IEEE 802.3af-compliant Power over Ethernet (PoE)

UA I/O follows IEEE 802.3af compliant Power over Ethernet (PoE) specification. It allows receiving power from PoE enabled network by Ethernet pairs. This feature provides greater flexibility and efficiency to simplify system design, save space, and reduce wirings and power sockets.

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.3 Selection Guide

UA-7000 Series UA I/O Selection Guide:

UA-7000 Series OPC UA I/O Module Selection Guide

Module

Ch.

Type

Ch.

Type

Ch.

Type

Ch.

Type

UA-7555M - - - -

Dry (Source),

Wet

(Sink,Source)

Open Collector

(Sink)

UA-7560M - - - -

Wet

(Sink/Source)

Power Relay

Form A (SPST

N.O.)

UA-7504M

±500mV, ±1V, ±5V,

±10V, 0~20mA,

±20mA, 4~20mA

0~5V, ±5V, 0~10V,

±10V, 0~20mA,

4~20mA

Dry (Source),

Wet (Sink)

UA-7526M

±500 mV, ±1V, ±5V,

±10V, 0~20mA,

±20mA, 4~20mA

0~5V, ±5V, 0~10V,

±10V, 0~20mA,

4~20mA

Dry (Source),

Wet

(Sink,Source)

Open Collector

UA-7517M-10

±150mV, ±500mV,

±1V, ±5V, ±10V,

±20mA, 0~20mA,

4~20mA

- - - - -

UA-7519ZM

±150mV, ±500mV,

±1V, ±5V, ±10V,

±20mA, 0~20mA,

4~20mA

Thermocouple: J, K,

T, E, R, S, B, N, C, L,

M, LDIN43710

- - - - 3

Open Collector

(Sink)

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.4 Specifications

1.4.1 Software Specifications (Series Common)

Protocol

OPC UA Server

● OPC Unified Architecture: 1.02

● Core Server Facet

● Data Access Server Facet

● Method Server Facet

● UA-TCP UA-SC UA Binary

● User Authentication:

- Username/Password

- X.509 Certificate

● Security Policy:

- None

- Basic128Rsa15 (Sign, Sign & Encrypt)

- Basic256 (Sign, Sign & Encrypt)

● Recommend to keep the maximum number of sessions within 3 connections

MQTT Client

It can connect to the set MQTT Broker to read or control the I/O channel value by the publish/subscribe messaging mechanism. (MQTT Ver. 3.1.1; TLS Ver. 1.2)

Function

Web Interface for Configuration

The system operation can be performed through the browser without installing software tools.

Scaling

Convert the analog signal to a more readable value. This function is only available for modules with AI/O.

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.4.2 UA-7555M Specifications

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.4.3 UA-7560M Specifications

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.4.4 UA-7504M Specifications

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.4.5 UA-7526M Specifications

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.5 Wire Connections / Pin Assignments

1.5.1 UA-7555M Wire Connections / Pin Assignments

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.5.2 UA-7560M Wire Connections / Pin Assignments

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.5.3 UA-7504M Wire Connections / Pin Assignments/Jumper Pic

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.5.4 UA-7526M Wire Connections/Pin Assignments/Jumper Pic

OPC UA I/O Series User Manual V2.0 – ICP DAS

1.6 Dimensions

1.6.1 UA-7555M/UA-7560M/UA-7504M/UA-7526M Dimensions

(Unit: mm)

OPC UA I/O Series User Manual V2.0 – ICP DAS

2. Quick Start: Hardware/Network Connection

This chapter describes the UA I/O module’s hardware connection, network connection and quick setting. For how to set up a project via the Web UI on the browser, please refer to Chapter 3.

2.1. Hardware Connection

This section describes the hardware wiring and connection for the UA I/O module.

2.1.1. Preparations for Devices

In addition to the UA I/O modules (Ex: UA-7555M), please prepare the following:

1. PC/NB: Can connect to the network and set the network

2. Ethernet Switch/Hub: e.g. NS-205 or PoE Switch NSM-208SE

3. Power Supply: +12 ~ +48 VDC, e.g. MDR-60-24 (If using PoE Switch, user can save a power supply.)

2.1.2. AI/AO Jumper Setting

This section is for setting the AI/AO jumpers, if use DI/O module, please go to the next section.

Setting the Selection Jumpers for Analog channels:

1. Remove the top case and upper board of the module if need to change the selection jumper, the selection jumpers are next to the connector.

2. Set up the Jumper corresponding to the type of voltage/current and input/output for each analog channel.

Voltage/Current Input/output Selection Jumper: (Default as AI/AO: Voltage/Voltage)

OPC UA I/O Series User Manual V2.0 – ICP DAS

Jumper Location:

UA-7504M

Channel

Vin3

Vin2

Vin1

Vin0

Vout3

Vout2

Vout1

Vout0

Jumper

UA-7526M

Channel

Vout1

Vout0

Vin5

Vin4

Vin3

Vin2

Vin1

Vin0

Jumper

Jumper Direction

(

Jumpers default

as:

Input: Voltage

Output: Voltage.

If you need to change the

jumpers, remove the top case

and upper board first.)

OPC UA I/O Series User Manual V2.0 – ICP DAS

2.1.3. Hardware Wiring

Connect the UA-7000 I/O Module with the RJ-45 Ethernet port to an Ethernet switch/hub and PC (Fig.1). Beside, UA-7000 support PoE (Power over Ethernet). If using the PoE switch, do not need one more power supply (Fig.2 for PoE Switch). You can also directly link the UA-7000 to PC with an Ethernet cable.

After power is connected, please【wait 1 minute】for UA-7000 start-up procedure. When the "RUN" light starts flashing, it represents the boot is complete.

PoE Switch/Hub

UA-7000

UA I/O

Cable

Power Supply

Fig.2

Switch/Hub

UA-7000

UA I/O

(R)+VS

(B)GND

Cable

Power Supply

12 ~ 48 VDC

-V

Fig.1

OPC UA I/O Series User Manual V2.0 – ICP DAS

2.2. Network Connection

This section introduces 3 methods to connect to the UA I/O Web UI (User Interface).

Setting new UA I/O module or the new user please uses the method A in the Chapter 2.2.1 (The same

method as the “UA I/O Quick Start” document.). Other users please see the following introductions to choose method B or C.

The methods to login the UA I/O Web UI:

A. Using Factory Default Setting:

Suitable for setting a new UA I/O module and the PC network IP is not in the same domain with UA I/O. This method changes the PC network IP to be the same domain with the network IP of the

UA I/O factory default values to login the Web UI. (Refer Section 2.2.1)

B. Using Software Utility:

Suitable for quick setting when many UA I/O are in the network but the IP are unknown. UA

products provide a free software utility for auto searching UA products in the network and can quick jump to the login web page of UA. (Refer Section 2.2.2)

C. Using IP Address:

Suitable for the UA has a fixed IP and in the same domain with the PC. If the UA has a fixed IP and

in the same domain with the PC, users can directly enter the IP in the address bar of a web browser and log in to the Web UI of the UA.

After login the UA I/O Web UI, then can set up the UA project.

OPC UA I/O Series User Manual V2.0 – ICP DAS

2.2.1. Connection by Factory Default Settings (For New UA)

The factory default settings of the UA I/O series are as the following table:

Factory Default Settings of UA I/O Modules

Network

192.168.255.1

Assign UA I/O a new IP setting according to your case.

Netmask

255.255.0.0

Gateway

192.168.1.1

Account

Username

root

After login, change your password as soon as possible.

(Section 4.1.4 for Web UI) (Appendix C for OS)

Password

icpdas

Web UI

Account

Username

root

Password

root

1. Change the PC’s IP setting as following. (Write down the PC original network settings before modify.)

192.168.255.10

Subnet mask

255.255.0.0

Gateway address

192.168.1.1

2. Make sure the PC and UA I/O is connecting through Ethernet. Then open a PC side browser (Ex: Chrome, IE…).

3. Type http://192.168.255.1 in the URL address. Use Web UI default username / password “root” / “root” to login the system.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4. Click【System Setting】【Network Setting】【Network Setting(LAN1)】to change the IP setting

by user network.

5. Save the IP setting, restore the PC original IP settings, and type the new IP in the browser as step-2 to

OPC UA I/O Series User Manual V2.0 – ICP DAS

2.2.2. Connection by Utility Searching

Setting new UA I/O or the new user please uses the method in the Chapter 2.2.1. (Method A)

If the UA I/O has a fixed IP and in the same domain as the PC, users can directly enter the IP in the address bar of a web browser and log in to the Web UI of the UA. (Method C)

This section introduces the 2nd method(B) that users use the UA Utility to search the Network IP. This method is suitable for connecting multiple UA series controllers or I/O modules to the Internet, but the IP addresses of UA are unknown or need to modify the UA quickly.

UA Utility is a free tool software to quickly search each UA series on the network and connect to its Web UI for setting UA series products and project.

In the PC, install the UA Utility (named “ua-series_utility.exe”), and then run it to connect the device. Please download the utility program from the website:

https://www.icpdas.com/en/download/index.php?nation=US&kind1=6&kind2=17&model=&kw=ua-

1. Install and execute the Utility

Run the UA Utility (file name: UA-series_utility.exe) to install the Utility program.

OPC UA I/O Series User Manual V2.0 – ICP DAS

2. Create a new connection

Click “New” to add a connection item and give a name for it.

3. Search the UA controller

Mouse double-click on the name you created (or single-click and then click the “Connect” button), this utility will scan and list all UA devices over the network.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4. Connect to the UA Series

Click the device name you want to connect to, and then click the “Connect” button. It will connect to the UA webpage via the default Web browser (IE/Chrome…).

5. Connection to the UA Web UI

The default web browser will be run and direct go to the UA login web site. Please enter the username and password to login the UA series Web UI. The factory default username: root. The factory default password: root.

OPC UA I/O Series User Manual V2.0 – ICP DAS

6. Login the Web UI of the UA Series

When login into the web interface, the UA default home page (the main configuration screen) will as below, and will automatically read setting of that UA to the webpage.

OPC UA I/O Series User Manual V2.0 – ICP DAS

3. Main Function Settings

This chapter introduces some of the most important and commonly used functions of UA I/O and their setting steps.

MQTT client function in industrial networking communication. Users can choose the networking mode according to their needs and environment, to transmit the values of built-in I/O channels to the cloud IT system or field control system for reading and writing. So, the main functions are the OPC UA connection and the MQTT connection. This chapter will introduce them first. Each function can be divided into the settings for the Server/Broker and Client, and how to enable secure encrypted communication, and how to download/upload the secure certificates. In addition, the AI/AO, DI/DO function applications are also very important for the UA I/O, which will be added to this chapter soon.

OPC UA / MQTT Communication Advantages: (V.S. traditional Modbus Communication)

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.1 Settings for Using OPC UA Connection

This section introduces how to set up the OPC UA communication service of UA I/O, and recommends compatible ICP DAS products.

UA I/O module built-in OPC UA Server Service that compliance with IEC 62541 Standard. Provides functions of Active Transmission, Transmission Security Encryption (SSL/TLS), User Authentication (X.509 Certificates / Account password), Communication Error Detection and Recovery, etc. to connect SCADA or OPC UA Clients. Recommend to keep the maximum number of sessions within 3 connections.

OPC UA connection includes the following settings that will be introduced in 3 sub-sections.

1. OPC UA Server Connection Settings (UA I/O)

2. OPC UA Client I/O Settings (Recommend to use the InduSoft product of ICP DAS.)

3. How to enable secure encrypted function, and download/upload the encrypted certificates

OPC UA Architecture and Advantages of the UA I/O:

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.1.1 OPC UA Server Connection Settings (UA I/O)

UA I/O module built-in OPC UA Server function and itself is the Server side of the connection. So, when setting up the Server, you only need to set the connection port number and choose the login method (via anonymous, username, or certificate). Usually, the user will enable the username login method, so the user can set the username/password of the account besides.

1. Connection Setting

Click Main Menu【OPC UA Setting】【Server Setting】【Connection Setting】.

2. When enabling username password login, please set the account in the following menu path.

Menu Path:【System Setting】【Account Setting】  (Appendix A).

If users enable the secure and encrypted OPC UA Certificate Login, need to upload/download certificates, please refer to Sec.3.1.3 .

After completing the Server connection settings, then set the Client connection (refer to Sec.3.1.2), and then can communicate with each other.

1. Enter the port number

2. Enable the login method. For better security, please enable Username Password Login or Certificate Login (refer to 3.1.3).

3. Click Save after the above settings.

3. Click Save after the settings.

1. Set up username

2. Set up Password and retype Password

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.1.2 OPC UA Client Side: InduSoft Simple Application

After setting the OPC UA Server-side (UA I/O), you only need to configure the OPC UA Client for connection. Now, go to the Client device that connects with UA I/O, and set the corresponding data point. We recommend using ICP DAS InduSoft products as the Client device. It is easier to set up relatively and can connect to UA I/O faster. For detailed settings, please refer to the InduSoft manual.

The setting screen is as follows:

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.1.3 Secure Encrypted Connection: OPC UA Certificate

When using the OPC UA connection, in addition to the account login for security, users can also enable the certificate login to double the protection by the secure encryption. This section describes how to download/upload the certificates. If you do not want to enable the certificate login, please skip.

When enabling the OPC UA certificate login, the Server/Client both sides of the connection need to add certificates to each other's trust zones. This section will show how to do the steps.

Menu Path:【OPC UA Setting】【Certificate】。  (Appendix A).

A. Provide the OPC UA Server Certificate of the UA I/O to the Client device. That is, download the

Server certificate file of the UA I/O, and then upload and import it into the software (or APP) of the OPC UA Client device.

Click the "Download" button to get the Certificate file generated by the Server. File Name: icpdasuaserver.der

B. Get the Trusted Certificate file of the connected OPC UA Client, save it in the PC, and upload it into

the UA I/O module.

1) Click the “Upload” button to open

the “open” window.

2) Select the Trusted Certificate file.

Import this file into OPC UA Client APP.

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.2 Settings for Using MQTT Connection

This section introduces how to set up the MQTT Client communication of UA I/O, and recommends the compatible ICP DAS products.

UA I/O module built-in MQTT Client Service (Compliance with MQTT V.3.1.1 protocol). Provides

functions of IoT Active M2M Transmission, QoS (Quality of Service), Retains Mechanism, Identity Authentication, Encryption, Last Will, etc.

MQTT connection includes the following settings that will be introduced in 3 sub-sections.

1. MQTT Broker Connection Settings (Recommend the UA-2xxx/52xx & BRK series of ICP DAS)

2. MQTT Client side I/O Settings (UA I/O)

3. How to enable secure encrypted function, and download/upload the encrypted certificates

MQTT Architecture and Advantages of the UA I/O:

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.2.1 Connecting to MQTT Broker

UA I/O module built-in MQTT Client function and itself is the Client side of the connection. So, when setting up the MQTT Broker, it is to set the data of the remote device (Broker) that the UA I/O module wants to connect. The data includes Broker's IP address, port number, anonymous login, account password login, etc.

MQTT Broker Device: recommend to use ICP DAS IIoT communication server UA-2200/5200/2600 series or MQTT Broker BRK-2600M/5200M series.

Main Menu:【MQTT Setting】【Connection Setting】  (Appendix A).

If users enable the secure and encrypted MQTT Certificate Login, need to upload/download certificates, please refer to Sec.3.2.3.

After completing the MQTT Broker connection settings, then set the Client connection (refer to

Sec.3.2.2), and then can communicate with each other.

1. IP address of the remote MQTT Broker that wants to connect.

(MQTT Broker: refer UA-2200/5200 & BRK series of ICP DAS)

2. Port number of the remote MQTT Broker

3. Login username and password of the remote MQTT Broker.

4. Click to save the settings.

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.2.2 MQTT Client Setting of the UA I/O

UA I/O built-in MQTT Client function and itself is the MQTT Client side of the connect. When setting, please set the connecting remote MQTT Broker device first, and then set the UA I/O module of the MQTT client.

Reference for MQTT related basic knowledge:

MQTT (MQ Telemetry Transport) is a lightweight publish/subscribe messaging protocol. An MQTT-based

application will include two or more clients, which are applications exchanging messages, and a broker, which is a server that accepts incoming messages and routes them to the appropriate destination client. As with most publish-subscribe systems, message sends involve publishing on a specified topic. The broker then forwards the message to all subscribers of that topic. These primitives can be used to build different interaction patterns. (as the picture below)

MQTT gives you flexibility by specifying a Quality of Service (QoS) with each message. QoS is a parameter available on each publish call. It is one of three levels:

 QoS 0: At most once  QoS 1: At least once  Q0S 2: Exactly once

Provides a Quality-of-Service data delivery: QoS can be selected based on the needs of the application.

MQTT Retained messages: The last published message (with retained flag set to true) is stored at the broker so that new subscribers can immediately obtain last known good value rather than wait for the next update from publisher.

REFERENCES: (The above information is from the following websites.)

https://micropython-iot-hackathon.readthedocs.io/en/latest/mqtt.html https://devopedia.org/mqtt

OPC UA I/O Series User Manual V2.0 – ICP DAS

MQTT Client Setting of the UA I/O:

Manu Path:【MQTT Setting】【Client Setting】  (Appendix A).

Enable of JSON Format: Descriptions for the Enable (check “Enable”) / Disable (uncheck “Enable”)

 Enable: Enter the Group setting screen, the Publish & Subscribe message is sent in a group.

Group setting (JSON Format) the Publish & Subscribe: Suitable for obtaining all I/O values at

one time, it can reduce network resources. It will pack all I/O point values into a JSON string, and then send the JSON string as a message or subscribe JSON string to get all I/O values back at one time. (Refer to Appendix B for the detailed JSON format)

 Disable: Enter the Singly setting screen, the Publish & Subscribe message is sent in singly (P to P).

Singly setting (Point-to-point) the Publish & Subscribe: Suitable for I/O points that require

high real-time performance, or devices that do not support generating or parsing JSON format.

Enable (Check)

Disable (Uncheck)

1. Set an update frequency for the task data.

Default: 1000 (Unit: ms)

2. Give a dead bend value for updating a float signal.

3. Enter a title of the disconnect notice.

4. Enter a disconnect notice.

5. Check “Enable”, the message is sent in groups.

Uncheck “Enable”, the message is sent in singly.

OPC UA I/O Series User Manual V2.0 – ICP DAS

The setting parameters for Both enable or disable the JSON Format:

MQTT Setting > Client Setting - Publish & Subscribe

Publish Topic

The topic of sending data / publishing message.

Publish QoS

The publish Qos (Quality of Service) levels. Default: 2 0: Delivering a message at most once. 1: Delivering a message at least once. 2: Delivering a message at exactly once.

Subscribe Topic

The topic of receiving data / subscribing message. It can copy the Publish Topic of linked device.

Subscribe QoS

The subscribe Qos (Quality of Service) levels. Default: 2 0: Delivering a message at most once. 1: Delivering a message at least once. 2: Delivering a message at exactly once.

Retain

Set up if the Broker retains the message.

Save

Click to save the setting of this page.

When Enable JSON format, it will pack all I/O point values into a JSON string, and then send the JSON string as a message or subscribe JSON string to get all I/O values back at one time. (Refer to

When Disable JSON format, it will publish or subscribe the message in singly (Point-topoint). User needs to set each I/O point.

5. If Broker retains the message

1. Topic for sending JSON string

2. QoS for sending JSON string

3. Topic for reading JSON string

4. QoS for reading JSON string

1. Topic for sending DO0 value

3. Topic for reading DO0 value

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Group Setting example: Check “Enable” of “JSON Format”

Here is an example of the lighting control in a factory. Use the I/O points of the UA-7555M module to connect the light switches of Room 1 to 7 in the factory Building-A to monitor/control the on/off of the room lights. We want to use the Group Setting, so check "Enable" of the "JSON Format". The following is a parameter example for the settings of [MQTT Setting] > [Client Setting].

The Pub & Sub setting page when enable the JSON Format: Sending/Reading the JSON string

Note:

When setting the Pub/Sub of MQTT Client, please also set the Alias of I/O channel, which includes MQTT Alias and OPC UA Description.

MQTT Client setting should cooperate with MQTT Alias of the I/O channels for the accuracy/readability of MQTT communication settings.

Menu: 【System Setting】>【I/O Setting】 As shown on the right.

1. Set the update frequency for the task data (1000 ms)

2. Do not set the Dead Band, so keep 0.

3. Set disconnect Topic for 1F of Building-A (UA-7555M)

4. Set Will message: Disconnection

5. Check to Enable JSON format to enter the Pub/Sub screen page for Group setting.

5. Check to set the Broker retain the message

1. Topic of the publish JSON string: /Build-A/1F/UA-7555M/all I/O sending data

3. Topic of the subscribe JSON string: /Build-A/1F/UA-7555M/all I/O reading data

4. Set QoS to level 2 for subscribe. 2: exactly once

2. Set QoS to level 2 for publish. 2: exactly once

6. Save all settings of this page.

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Singly Setting example: Uncheck “Enable” of “JSON Format”

Here is an example of the lighting control in a factory. Use the I/O points of the UA-7555M module to connect the light switches of Room 1 to 7 in the factory Building-A to monitor/control the on/off of the room lights. We want to use the Point-to-Point Setting, so uncheck "Enable" of the "JSON Format". The following is a parameter example for the settings of [MQTT Setting] > [Client Setting].

Uncheck the JSON Format to do the Point-to-Point singly setting (as the left figure): User needs to set up each Topic/QoS of Publish/ Subscribe for each I/O channel.

1. Set the Publish Topic of DO0

and set each IO#. Topic means: /Building-A/1F/light# of UA-7555M/Topic

2. The level of sending Topic

for each IO#. level 2: Exactly once

3. Set the Subscribe Topic of

DO0 and set each IO#. Topic means: /Building-A/1F/light# of UA-7555M/Topic

4. The level of reading Topic

for each IO#. level 2: Exactly once

5. Check to set the Broker

retain the message

6. Save all settings.

IO# Ch.

2 1 3 4 5

1. Set the update frequency for the task data (1000 ms)

2. Do not set the Dead Band, so keep 0.

3. Set disconnect Topic for 1F of Building-A (UA-7555M)

4. Set Will message: Disconnection

5. Uncheck to Enable JSON format to enter the Pub/Sub screen page for Group setting.

OPC UA I/O Series User Manual V2.0 – ICP DAS

3.2.3 Secure Encrypted Connection: MQTT Certificate

When using the MQTT connection, in addition to the account login for security, users can also enable the SSL/TLS login to use the MQTT Certificate protection of the secure encryption. This section describes how to download/upload the certificates. If you do not want to enable the certificate login, please skip.

The settings of MQTT certificate connection need to enable the SSL/TLS secure encryption. And the UA I/O needs to get the certificate of the connecting device first. And then upload the certificates to UA I/O. There are three types of certificates: Trusted Certificate, Certificate, and Private Key.

Please upload the files to the UA I/O module according to the type of certificates:

To perform the One-way authentication, you need to upload the Trusted Certificate. To perform the Two-way authentication, you need to upload the Trusted Certificate first, and then upload the Certificate and Private Key.

Note:

1. One-way authentication: The Client verifies the validity of Broker credentials; need to upload

the Trusted Certificate.

2. Two-way authentication: The Client and Broker verify the validity of the certificate with each

other; need to upload the Trusted Certificate first, and then upload the Certificate and Private Key.

3. Trusted Certificate: File format must be PEM. Extension name must be “pem”, “cer”, or “crt”.

4. Certificate: File format must be PEM. Extension name must be “pem”, “cer”, or “crt”.

5. Private Key: File format must be PEM. Extension name must be “key”.

Manu Path:【MQTT Setting】【Client Setting】  (Appendix A).

1. Check “Enable”.

2. Click “Save” to show more items.

3. Select One-way or Two-way.

4. Upload the certificates according to the type.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4. Main Menu: Parameter Descriptions

This chapter introduces the menu functions of the UA I/O web UI and more focused on the function parameters of the menu. Each section introduces one main menu and its sub-menu functions. The function location is showing in a brief text and diagram of【Menu Path】, for Menu Path introductions please refer to Appendix A.

4.1 Main Menu - System Setting

System Setting is the first item of the Main Menu. This item is about the settings related to the hardware

and operating system.

4.1.1 Overview

Function: Display the current information of the hardware and operating system. Support Module: All UA I/O modules support this function.

Manu Path:【System Setting】【Overview】  (Refer to Appendix A).

System Setting > Overview

Firmware Version

Display the firmware version of the UA I/O module.

Factory Version

Display the factory version (OS & UI) of the UA I/O module.

CPU

Display the current CPU usage of the module. Do not use to achieve 95% or more.

Memory

Display the current memory usage of the module. Do not use to achieve 95% or more.

Disk

Display the current disk usage of the module. Do not use to achieve 95% or more.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4.1.2 Network Setting

Function: Display and set up the network settings of the UA I/O. Support Module: All UA I/O modules support this function.

Manu Path:【System Setting】【Network Setting】  (Appendix A).

 Network Setting (LAN)

System Setting > Network Setting - Network Setting (LAN)

Connection Mode

Specify an IP address: Users input the values in the fields of IP, Mask and Gateway according to customer's network. Detail information for the factory default value of UA controller network refers to the. Sec. 4.1.7

Obtain an IP address automatically (DHCP): It’s the Dynamic Host

Configuration Protocol mode. The system assigns the IP, Mask and Gateway automatically.

IP Address

The LAN IP address of this UA I/O. Factory Default: 192.168.255.1

Mask

The LAN mask address of this UA I/O. Factory Default: 255.255.0.0

Gateway

The LAN gateway address of this UA I/O. Factory Default: 192.168.1.1

MAC Address

The LAN MAC address of this UA I/O.

Save

Click to save the settings of LAN item.

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Hostname Setting

System Setting > Network Setting - Hostname Setting

Hostname

The host name of this UA I/O. Default: system value. User can give a new name, but cannot be null, Chinese characters, or special symbols.

Save

Click to save the settings of this item.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4.1.3 Time Setting

Function: Display and set up the date and time of the UA I/O. Support Module: All UA I/O modules support this function.

Manu Path:【System Setting】【Time Setting】  (Appendix A).

 Date and Time Display

System Setting > Time Setting - Date And Time Display

Date

Display the date of the UA I/O module, including year, month and day.

Time

Display the current time of the UA I/O module, including hour, minute and second.

When the device time is one day different from the local computer time, a warning message "Please

check the time" will be displayed, as shown in the below.

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Set the time manually

System Setting > Time Setting - Set The Time Manually

Date

Set the system date of the UA I/O by manually. Directly enter the new year/month/day, and then click “Save”.

Time

Set the system time of the UA I/O by manually. Directly enter the new hour : minute : second, and then click “Save”.

Read The Local Computer Time

Click [Read] can copy the current time of the using computer to the “Time Setting” of this item.

Save

Click to save the settings of this item and update the data of “Time Setting” to the “Date And Time Display” on the top of this page.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4.1.4 Account Setting

Function: Display and set up the login username and password of the UA I/O Web UI. Support Module: All UA I/O modules support this function.

Manu Path:【System Setting】【Account Setting】  (Appendix A).

System Setting > Account Setting

Username

The login username for the UA Web UI. Factory default: root. Cannot be null.

Password

The login password for the UA Web UI. Factory default: root. Cannot be null.

Confirm Password

Retype the password for the operation conform when setting the new account information.

Save

Click to save the settings of this page.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4.1.5 I/O Setting

Function: Display and change the I/O settings of the UA I/O module. Support Module: All UA I/O modules support this function.

Manu Path:【System Setting】【I/O Setting】  (Appendix A).

 Digital Input

System Setting > I/O Setting - Digital Input

Channel

The channel name (number) of the UA I/O hardware.

MQTT Alias

The variable alias of the sending message (MQTT JSON format), when using MQTT connection.

OPC UA Description

The messages got from the description column of OPC Client, when using OPC UA connection.

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Digital Output

System Setting > I/O Setting - Digital Output

Channel

The channel name (number) of the UA I/O hardware.

MQTT Alias

The variable alias of the sending message (MQTT JSON format), when using MQTT connection.

OPC UA Description

The messages got from the description column of OPC Client, when using OPC UA connection.

Power-on Value

The initial value of the I/O channel after the power off and restart to on.

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Analog Input

System Setting > I/O Setting – Analog Input

Channel

The channel name (number) of the UA I/O hardware.

MQTT Alias

The variable alias of the sending message (MQTT JSON format), when using MQTT connection.

OPC UA Description

The messages got from the description column of OPC Client, when using OPC UA connection.

Input Type

Select the Input type by user’s need.

OPC UA I/O Series User Manual V2.0 – ICP DAS

 Analog Output

System Setting > I/O Setting – Analog Output

Channel

The channel name (number) of the UA I/O hardware.

MQTT Alias

The variable alias of the sending message (MQTT JSON format), when using MQTT connection.

OPC UA Description

The messages got from the description column of OPC Client, when using OPC UA connection.

Power-on Value

The initial value of the I/O channel after the power off and restart to on. (UA-7504M will support later, other models support now.)

Output Type

Select the Output type by user’s need.

OPC UA I/O Series User Manual V2.0 – ICP DAS

4.1.6 I/O Status

Function: Display and change the I/O status of the UA I/O module. Support Module: All UA I/O modules support this function.

Manu Path:【System Setting】【I/O Status】  (Appendix A).