OPCUA Monitor

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About this app

*Currently, as part of the initial release period, you can use the Pro version with all feature restrictions removed.

Complete all on-site work using OPC UA with just one smartphone.

This OPC UA monitoring app is designed for engineers and maintenance personnel in manufacturing and process sites. By combining wired LAN direct connection via a USB-Ethernet adapter with secure connection functions supporting OPC UA server authentication and user authentication, you can start monitoring quickly while complying with the security policies of the OT environment. Its unique hierarchical structure called Workspace reproduces on-site equipment, lines, and processes directly within the app, allowing for systematic management of multiple servers. In addition to traditional polling monitoring using OPC UA Client/Server, it also supports real-time reception using the latest OPC UA Pub/Sub (UDP/MQTT). It covers all on-site communication methods with a single device.

Verified Operating Environments
• Siemens S7-1200 / S7-1500 (OPC UA enabled via TIA Portal)
• Prosys OPC UA Simulation Server

■ Instant Secure Connection with USB-Ethernet Adapter — Simply Plug in the Cable on-site

By simply connecting a USB-Ethernet adapter (USB-C compatible) to your smartphone, you can immediately establish a secure connection through OPC UA server authentication and user authentication. Because it allows direct wired connection to the OT-dedicated network within the control panel, monitoring can begin on-site without the hassle of network configuration. It excels in situations where both speed and security are required, such as commissioning, startup, and troubleshooting.

■ Workspace Management — Directly Reflect the On-site Structure in the App

Monitoring settings are managed in three layers: server, category, and monitor table. By switching between multiple workspaces, you can save and reuse monitoring configurations for each line, equipment, and process. Tags can be registered by directly referencing the address space with the Node Browser. Reading and writing registered values ​​and checking connection status can also be done in real time.


■ Real-time Monitoring — Understand the On-Site Status at Your Fingertips

Periodically retrieves and displays tag values ​​from the OPC UA server. Supports writing values ​​to writable nodes. Continuous automatic updates are possible with the cyclic refresh function. Connection and reconnection management is handled automatically.

■ Event and Alarm Monitoring — Detect and Address Anomalies on the Spot

Supports OPC UA event subscriptions. Displays a real-time list of events, allowing for alarm status confirmation and approval within the application. Supports on-site anomaly response.

■ Pub/Sub Monitor — Real-time Reception and Dashboard Visualization

Receives OPC UA Pub/Sub data in real time from UADP (UDP multicast/unicast) and MQTT brokers. The received fields allow for flexible dashboard configuration using widgets such as numerical cards, gauges, bar graphs, sparklines, and event logs. Anomaly detection can also be performed by setting alarm thresholds for each field.

■ Historical Data and Method Calling — From Analysis to Operation in One Device

With OPC UA historical access support, you can refer to historical data for a specified period. It also supports the execution of OPC UA methods, allowing you to perform equipment operation tests and remote command execution directly from the app.

■ Companion Specification Compatible Dashboard — Instant Visualization of Machinery, PackML, and Robotics

Supports OPC UA companion specifications (Machinery, PackML, Robotics). When referencing nodes in the Node Browser, it automatically detects the equipment type and generates a dashboard optimized for the specification with a single tap. Specification-specific widgets, such as color-coded badges for PackML state transitions and Machinery overview cards, allow for intuitive understanding of equipment status. Generated widgets are organized in grouped frames.

■ Connection Security — TOFU-based Server Certificate Trust Management

You can switch between development mode and secure mode in the settings. In secure mode, the Trust On First Use (TOFU) method is used to record the server certificate thumbprint at the time of the initial connection, and subsequent connections are detected and rejected if there are changes. Trusted servers can be managed from the settings screen.

Recommended for:
* Engineers who want to mobile-monitor OPC UA-compatible PLCs, SCADA systems, and industrial equipment in the field
* Maintenance personnel who want to centrally manage monitoring settings for multiple lines and equipment in a workspace
* Those who want to receive and visualize real-time data from Pub/Sub-compatible equipment on their smartphones
* Those who want to efficiently monitor equipment compliant with companion specifications such as Machinery, PackML, and Robotics
* System integrators who want to build a secure OPC UA connection environment
* Those who want to streamline on-site troubleshooting and equipment verification

What’s new

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