Introduction

The FEWS Operating Request Webservice is a REST API dedicated to communicate operating instructions (i.e. a request) to a Scada system. The service is pull based where the Scada system pulls the Fews Webservice to obtain new instructions.

The webservice is intended to communicate state requests for components controlled by a PLC. The PLC remains responsible for validation, and monitoring when the conditions are situable to fulfill the request and for the actual implementation.

An operating request is defined for a specific object (e.g. a pump station) with set of instructions for a specific issue date time. Each instruction has its own start time which and per component a few parameter settings.



API documentation

The API is documented following the Open API Documentation. Please see: Open API Specification FewsOperatingRequestServce

WebServices Configuration

Please create a WebServices.xml file to enable this service. See WebService Configuration for more information.


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