// WinCC REST API的URL string url = "https://DESKTOP-D1CLS40:34568/WinCCRestService/tagManagement/Values"; var client = new RestClient(url); var request = new RestRequest(Method.POST); // 设置Basic Authentication，用户名和密码与WinCC用户管理器中的一致 client.Authenticator = new HttpBasicAuthenticator("admin", "123456");
The API provides access to the three core pillars of SCADA data:
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Automatically send production counts, material usage, and machine state directly to SAP, Microsoft Dynamics, or a custom MES without intermediary middleware. wincc rest api
By exposing SCADA functions as standard URL endpoints, the WinCC REST API eliminates the need for specialized industrial drivers on the client side. Any programming language capable of sending HTTP requests (such as Python, JavaScript, C#, or Go) can seamlessly integrate with WinCC. Key Capabilities and Use Cases
You can restrict API users to specific scopes. For example, a data scientist's API token might grant "Read-Only" access to historical tags, while a maintenance manager's app gets "Read/Write" access to specific machine setpoints. Practical Example: Fetching a Tag Value with Python
url = f"wincc_hostapi_base?tagName=tag_name" Key Capabilities and Use Cases You can restrict
Tracking system anomalies is crucial for predictive maintenance and auditing. HTTPS:// : /api/v1/alarms/active Method: GET Practical Implementation: Python Integration Example
Always verify with Siemens documentation for your exact version and update level.
: Uses standard HTTP methods (GET, POST, etc.) and returns data in JSON format. var client = new RestClient(url)
Before you go all-in, understand the constraints:
With the rise of Industry 4.0 and IIoT (Industrial Internet of Things), the ability to expose process data via standard web protocols is no longer a luxury—it’s a necessity. REST APIs transform WinCC from a monolithic HMI into a data server ready to talk to anything from a React dashboard to an ERP system.