ICP DAS USA U-7500 Series User manual

OPC UA I/O User Manual
V4.0, 2021/09
U-7500 Series IIoT OPC UA I/O Module
U-7555M
U-7560M
U-7504M
U-7526M
Technical support: [email protected]om
Technical Editor: Tim Chen
Editor: Eva Li

OPC UA I/O Series User Manual V4.0 –ICP DAS
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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.
Copyright
Copyright @ 2020 by ICP DAS Co., Ltd. All rights are reserved.
Trademark
The names used for identification only may be registered trademarks of their respective
companies.
Contact US
If you have any problem, please feel free to contact us.
You can count on us for quick response.
Email: [email protected]
For more product information please refer to website: https://www.icpdas.com

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Revision History
This chapter provides revision history information to this document.
The table below shows the revision history.
Revision
Date
Description
V4.0
09/2021
4th Version: Provide New Functions
1. Add CH3.3 Rule Setting (Main new function: Logic)
* CH4.5 Advanced Setting: add 4.5.3 Rule Setting
* Setting the logic condition of I/O & Virtual points: IF, THEN, ELSE
2. Add CH3.4 Support RESTful API (Main new function)
* Read/write the I/O & Virtual points via HTTP
3. Add CH4.5.2 Event Log
* CH4.5 Advance Setting: add Event Log (provide log file download)
4. Add CH4.1.3 NTP time calibration
5. Strengthen information security protection functions (CH4.1.4)
* Increase the password length (>6), including at least one uppercase, one
lowercase letter and one number
6. Add CH4.1.5 HTTPS Web Server
* Can upload certificate and private key
7. Add CH4.1.6 Firewall Setting
* Allow/restrict remote device connection
8. CH4.1.7 Modify firmware update time: 60 seconds => 2 minutes
V3.0
03/2021
3rd Version: Provide New Functions
1. Change the Model/Series name: all UA-75xxM change to U-75xxM
2. Support to execute OPC UA and MQTT communication simultaneously
(Emphasized in the file)
3. Add data security protection functions:
* The user must change the default username/password after the first
login to use other functions
* Delete the general user's right to modify the OS account password
* General communication uses AES 256 encryption algorithm and set to
data encrypt for web pages
* For security reasons, only the service ports required by the I/O modules
are available, and the rest are not open.
* It is forbidden to use ping: turn off this function so that others cannot
scan the device to reduce the possibility of cyberattacks.
* Add the software system maintenance function for the developer
4. The [Module Setting] independently becomes the main menu:
* Move [I/O Setting] and [I/O Status] to under here (previously under the
[System Setting])
* Add [Project File] function to download and upload the project

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Revision
Date
Description
V2.0
09/2020
2nd version:
1. Release new AIO models: UA-7504M/UA-7526M
2. Provide new function: Scaling
V1.0
06/2020
Initial issue
1. Release new DIO models: UA-7555M/UA-7560M
2. Provide OPC UA and MQTT communication functions

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Content of Table
Revision History................................................................................................................ 3
Content of Table................................................................................................................ 5
1. UA I/O Introduction:...................................................................................................... 8
1.1 Introduction............................................................................................................8
1.2 Features ................................................................................................................9
1.3 Selection Guide ...................................................................................................10
1.4 Specifications.......................................................................................................11
1.4.1 Software Specifications (Series Common)............................................................11
1.4.2 U-7555M Specifications........................................................................................13
1.4.3 U-7560M Specifications........................................................................................14
1.4.4 U-7504M Specifications........................................................................................15
1.4.5 U-7526M Specifications........................................................................................16
1.5 Wire Connections / Pin Assignments...................................................................17
1.5.1 U-7555M Wire Connections / Pin Assignments.....................................................17
1.5.2 U-7560M Wire Connections / Pin Assignments.....................................................18
1.5.3 U-7504M Wire Connections / Pin Assignments/Jumper Pic..................................19
1.5.4 U-7526M Wire Connections/Pin Assignments/Jumper Pic....................................20
1.6 Dimensions..........................................................................................................21
1.6.1 U-7555M/U-7560M/U-7504M/U-7526M Dimensions.............................................21
2. Quick Start: Hardware/Network Connection..............................................................22
2.1. Hardware Connection..........................................................................................22
2.1.1. Preparations for Devices....................................................................................22
2.1.2. AI/AO Jumper Setting ........................................................................................22
2.1.3. Hardware Wiring ................................................................................................24
2.2. Network Connection ............................................................................................25
2.2.1. Connection by Factory Default Settings (For New UA).......................................26
2.2.2. Connection by Utility Searching..........................................................................29
3. Main Function Settings................................................................................................33
3.1 Settings for Using OPC UA Connection.................................................................34
3.1.1 OPC UA Server Connection Settings (UA I/O)......................................................35
3.1.2 OPC UA Client Side: InduSoft Simple Application.................................................36
3.1.3 Secure Encrypted Connection: OPC UA Certificate..............................................37
3.2 Settings for Using MQTT Connection....................................................................38
3.2.1 Connecting to MQTT Broker.................................................................................39

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3.2.2 MQTT Client Setting of the UA I/O........................................................................40
3.2.3 Secure Encrypted Connection: MQTT Certificate .................................................45
3.3 Rule Setting...........................................................................................................46
Setting Steps:.......................................................................................46
3.4 RESTful API: Read and Write I/O and Virtual Point...............................................50
What is Restful API?.............................................................................50
Use RESTful with UA I/O......................................................................50
RESTful Description.............................................................................52
4. Main Menu: Parameter Descriptions..........................................................................55
4.1 Main Menu - System Setting..................................................................................55
4.1.1 Overview ..............................................................................................................55
4.1.2 Network Setting ....................................................................................................56
Network Setting (LAN)..........................................................................56
Hostname Setting.................................................................................57
4.1.3 Time Setting .........................................................................................................58
Date and Time Display.........................................................................58
NTP time calibration.............................................................................59
Set the time manually...........................................................................59
4.1.4 Account Setting ....................................................................................................60
4.1.5 Web Server Setting...............................................................................................61
Http Web Server Setting.......................................................................61
Https Web Server Setting.....................................................................62
4.1.6 Firewall Setting.....................................................................................................63
4.1.7 Firmware Setting...................................................................................................64
Restore Factory Setting........................................................................64
Update Firmware..................................................................................66
Maintenance.........................................................................................68
4.2 Main Menu - Module Setting..................................................................................69
4.2.1 I/O Setting.............................................................................................................69
Digital Input ..........................................................................................69
Digital Output........................................................................................70
Analog Input .........................................................................................71
Analog Output ......................................................................................72
4.2.2 I/O Status .............................................................................................................73

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Digital Input ..........................................................................................73
Digital Output........................................................................................73
Analog Input .........................................................................................74
Analog Output ......................................................................................74
4.2.3 Project File............................................................................................................75
Download the file from device ..............................................................75
Upload the file to the device.................................................................76
4.3 Main Menu - OPC UA Setting................................................................................77
4.3.1 Server Setting.......................................................................................................78
4.3.2 Certificate.............................................................................................................79
4.4 Main Menu –MQTT Setting...................................................................................80
4.4.1 Connection Setting ...............................................................................................80
4.4.2 Client Setting........................................................................................................81
4.4.3 Certificate.............................................................................................................84
4.5 Main Menu –Advanced Setting.............................................................................86
4.5.1 Scaling..................................................................................................................86
4.5.2 Event Log .............................................................................................................87
4.5.3 Rule Setting..........................................................................................................89
5. Recovering Firmware Setting (Reset) ........................................................................90
Appendix A. Menu Path Diagram Description...............................................................92
Appendix B. MQTT JSON Format of the UA I/O Series.................................................93

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1. UA I/O Introduction:
UA I/O series is a series of OPC UA I/O modules, also known as U-7500. The main model is U-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.
1.1Introduction
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 U-7500, supports the OPC UA server and
MQTT client function (can execute both communications at the same time.) 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. Support Scaling. Let the analog signal be converted into a more readable value. Support logic
function rule setting IF, THEN, ELSE, can set up logical condition/action for I/O and virtual point; and
support RESTful API function, can read/write I/O and virtual point through HTTP.
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.

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1.2Features
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 to Execute OPC UA and MQTT Communication Simultaneously
Support Scaling
AI/O modules support Scaling. Let the analog signal be converted into a more readable value.
Support logic function Rule Setting: IF, THEN, ELSE
can set up logical condition/action for I/O and virtual point.
Support RESTful API function
Can read/write I/O and virtual point through HTTP.
Built-in Web Server to Provide the Web User Interface
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.
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.

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1.3Selection Guide
U-7500 Series UA I/O Selection Guide:
U-7500 Series OPC UA I/O Module Selection Guide
Module
AI
AO
DI
DO
Ch.
Type
Ch.
Type
Ch.
Type
Ch.
Type
U-7555M
-
-
-
-
8
Dry (Source),
Wet
(Sink,Source)
8
Open Collector
(Sink)
U-7560M
-
-
-
-
6
Wet
(Sink/Source)
6
Power Relay
Form A (SPST
N.O.)
U-7504M
4
±500mV, ±1V, ±5V,
±10V, 0~20mA,
±20mA, 4~20mA
4
0~5V, ±5V, 0~10V,
±10V, 0~20mA,
4~20mA
4
Dry (Source),
Wet (Sink)
-
-
U-7526M
6
±500 mV, ±1V, ±5V,
±10V, 0~20mA,
±20mA, 4~20mA
2
0~5V, ±5V, 0~10V,
±10V, 0~20mA,
4~20mA
2
Dry (Source),
Wet
(Sink,Source)
2
Open Collector
U-7517M-10
10
/
20
±150mV, ±500mV,
±1V, ±5V, ±10V,
±20mA, 0~20mA,
4~20mA
-
-
-
-
-
-
U-7519ZM
8
±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)

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1.4Specifications
1.4.1 Software Specifications (Series Common)
UA I/O 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:
- Anonymous
- Username/Password
- X.509 Certificate
● Security Policy:
- None
- Basic128Rsa15 (Sign, Sign & Encrypt)
- Basic256 (Sign, Sign & Encrypt)
●Max. Session Connections: 3
●Can Execute with MQTT Communication Simultaneously
MQTT Client
●Connect to the 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)
●Can Execute with OPC UA Communication Simultaneously
Function
Web
Interface for
Configuration
●The system operation can be performed through the browser without installing
software tools.
●Use AES 256 encryption algorithm to encrypt web page setting data for general
communication.
●HTTPS upgrades the security of web communication.
Scaling
●Convert the analog signal to a more readable value.
●Function is only available for modules with AI/O.
Security
●Based on security considerations, only the service ports needed by the I/O
modules are open up, and the rest are not open.
●Forbidden to use ping: turn off this function so that others cannot scan the
device, so as to reduce the possibility of network attacks.
●Firewall settings, allowing specific IP to have permission to connect to the
module

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UA I/O Software Specifications (Series Common)
RESTful API
●User can read/write the I/O & Virtual points through HTTP.
Rule Setting
●Provide simple logic condition rule setting, let UA I/O do automatic condition
judgment and action control, to achieve simple AI.
Event Log
●When the I/O value changes, record the current I/O value for easy device
tracking in the future.

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1.4.2 U-7555M Specifications

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1.4.3 U-7560M Specifications

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1.4.4 U-7504M Specifications

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1.4.5 U-7526M Specifications

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1.5Wire Connections / Pin Assignments
1.5.1 U-7555M Wire Connections / Pin Assignments

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1.5.2 U-7560M Wire Connections / Pin Assignments

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

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