Wincc Rest Api | PREMIUM ● |

The WinCC REST API is a powerful tool for bridging the gap between operational technology (OT) and modern IT systems. It allows external applications to interact with WinCC configuration and runtime data using standard HTTP methods and JSON Core Capabilities The REST interface is primarily used for: Data Access:

3. Authentication and authorization complexities. It relies on WinCC’s user groups or Windows authentication. Stateless token-based auth (like JWT) is absent for older versions. In practice, you either use session cookies (stateful) or Basic auth over HTTPS — which feels out of place in a modern cloud-native world. wincc rest api

• "WinCC REST API tags example"
• "WinCC Unified REST API authentication"
• "Siemens WinCC history API query"

Siemens offers two distinct ways to use REST with WinCC, depending on whether WinCC is the "server" or the "client":  The WinCC REST API is a powerful tool

Response Format (JSON)

  "name": "Pump_Setpoint",
  "value": 42.5,
  "quality": 192,
  "timestamp": "2023-10-27T14:30:05.123Z",
  "errorCode": 0,
  "errorDescription": ""
"Version": "17.0", "APIVersion": "1.2"


A REST (Representational State of Resource) API is an architectural style for designing networked applications. It's based on the idea of resources, which are identified by URIs (Uniform Resource Identifiers), and can be manipulated using a fixed set of operations. REST APIs typically use HTTP (Hypertext Transfer Protocol) as the communication protocol and return data in a format like JSON (JavaScript Object Notation) or XML (Extensible Markup Language). "WinCC REST API tags example" "WinCC Unified REST
POST: Send multiple values or specific resources in the request body.