When it comes to smart manufacturing, the majority of individuals imagine robots, sensors, and advanced analytics powered by artificial intelligence. However, apart from these elements, there is another key ingredient that makes modern industrial facilities work effectively – Application Programming Interfaces (APIs).
APIs allow communication among different software applications and devices. APIs make the communication between OT (operational technology) and IT (information technology) in industry environments possible through data exchange and process automation.
What is an API?
API is a protocol through which one application is able to request services or data from another application.
So, for example, the manufacturing dashboard can access machine performance information via API, and the inventory management system can use this data to update the quantity of stock.
There is no need to have separate custom solution for each system; rather, standard data can be exchanged using API.
Why Are APIs Important for Manufacturing?
There are several systems in industrial environments such as:
- ERP systems
- Manufacturing execution systems (MES)
- SCADA
- IoT platform
- Maintenance management systems
- Warehouse management systems
Connecting all these systems without APIs is complicated, time-consuming, and challenging.
APIs facilitate the integration process and allow transferring the data within the company.
Common Use Cases of Industrial APIs
Monitoring of Equipment in Real Time
Data about the machine can be provided via APIs and presented in operational dashboards. There is no need to collect data manually.
Production Reporting
Production data can be extracted from factory systems and transferred to the BI tool to create automated reports.
Predictive Maintenance
Maintenance application can get the equipment data via API and perform analytics to find out possible future equipment failure patterns.
Synchronization of Inventory
The warehouse system will be able to update the inventory automatically after completing the production order.
REST, MQTT, and OPC UA: Differences
When developing industrial systems, engineers face several options for communication technologies.
RESTful APIs are suitable for application-level interaction and for enterprise environments.
MQTT is a lightweight publish/subscribe system specifically intended for IoT devices and real-time notifications.
OPC UA is an industrial standard utilized for communication between machines and control systems.
These technologies are not rivals; quite the contrary, they often coexist in contemporary industrial solutions.
Best Practices for Creating APIs
In case of development of APIs for industrial systems, one should pay attention to such issues as:
- Proper authentication and authorization
- Good versioning strategy
- Naming conventions
- Documentation
- Error handling and logging
- Secure connections via HTTPS and data encryption
Good APIs will ensure reliable integration when the system grows.
Future Trends in the Industrial World
With the use of artificial intelligence, internet of things in industry, cloud computing, and big data analysis, APIs will remain significant in the connection process.
Future industrial systems will require secure and scalable APIs which will facilitate communication between machines, software, and cloud to machine.
Learning about API-first development is now as critical for developers as knowledge of databases, networking, or cloud computing.
Should you be interested in learning more about how such technologies as artificial intelligence, Internet of Things, and enterprise technologies fuel industrial innovation, there's an additional resource to look at: Aperture Venture Studio.
Final Thoughts
Smart manufacturing is not based on one specific technology. It relies on interconnected ecosystems in which information flows seamlessly from device to application to person.
In order to establish smooth communication channels in such ecosystems, APIs are key.
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