Question 1

How to set up a basic OPC UA server with locka99/opcua in Rust?

Accepted Answer

Use the 'simple-server' sample from the repository: run 'cargo run' in the samples/simple-server directory after following the setup instructions in docs/setup.md. It demonstrates adding variables and updating them via timers for a minimal implementation.

Question 2

Is locka99/opcua better than the Python opcua library for industrial IoT?

Accepted Answer

locka99/opcua is written in Rust, offering superior performance, memory safety, and support for embedded profiles, making it more suitable for resource-constrained industrial IoT devices compared to Python's higher overhead and less focus on embedded use.

Question 3

Does opcua for Rust support OPC UA security features like encryption?

Accepted Answer

The implementation aims for OPC UA specification compliance, including security aspects, but specific features should be verified in the compatibility documentation, which details conformance and any limitations.

Question 4

Can I use this library on Windows for connecting to PLCs?

Accepted Answer

Yes, it supports cross-platform compilation including Windows, as mentioned in the cross-compilation docs, allowing integration with Windows-based industrial systems like PLCs and SCADA.

Question 5

How to handle events and alarms with the OPC UA client in Rust?

Accepted Answer

Refer to the 'event-client' sample that subscribes to alarms and events, providing a practical example. The client API includes methods for event subscription, though detailed usage may require consulting the work-in-progress tutorials.

Question 6

What's the memory footprint for the nano profile on microcontrollers?

Accepted Answer

The implementation supports nano profiles for highly constrained devices, but exact memory usage depends on configuration and features enabled; review the design documentation for insights into optimization and resource constraints.

opcua

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