This folder collects individual OPC UA LADS servers for distinct device classes.
Each server
- exposes a LADS-compliant OPC UA endpoint,
- publishes metadata following Allotrope Foundation Ontologies (AFO), and
- generates measurement results in the Allotrope Simple Model (ASM) format (Visocmeter and pH-Meter only).
| Device type | Folder | Highlights | Port |
|---|---|---|---|
| Viscometer | servers/lads-viscometer |
Rheometry simulation (temperature & shear-rate dependent viscosity) | 4840 |
| pH-Meter | servers/lads-ph-meter |
pH sensor simulation/real world device gateway with temperature compensation and slope/offset calibration (simulation only) | 4841 |
| ULT Freezer | servers/lads-freezer |
Door state machine + 2-point temperature control simulation | 4842 |
Status: All servers are proof-of-concept simulators intended for demos, integration testing and reference implementations.
Production-ready hardening (security, persistence, real hardware I/O) is out of scope for now. Since the AFO nodeset takes some time to load, you can enable/disable AFO support by setting the const IncludeAFO in the respective server.ts file.
The majority of the source code in this repository is licensed under the MIT License.
Source code specifically related to "real-world" device types is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).
Please refer to the license header within each individual source file for precise licensing details.
For information on third-party components:
- Licensing details for the Allotrope Simple Models (ASM) can be found here.
- Licensing details for the Allotrope Foundation Ontology (AFO) are available here.
# 1. install dependencies (workspace root)
npm install # or npm/yarn
# 2. run it
npm run <server-name> # see individual READMEs for options
# 3. point any OPC UA client to opc.tcp://localhost:<port>
