EcoStruxure Web Services

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As the name had not been finalized before coding was complete, you may find EcoStruxure Web Services being referred to as "Schneider Electric Corporate Web Services".

EcoStuxture Web Services (EWS) is a new technology that is beginning to be used within Schneider to connect platforms together. It provides similar services to OPC XML but in a more Schneiderised way.
More details can be found at the EWS forum at http://sgweb.eur.gad.schneider-electric.com:8000/cws/index.php?sid=b9e2cb3539f0b01803374e7667adfda2

ClearSCADA includes support in the server for clients to connect in and extract data and also includes a client driver to enable ClearSCADA to communicate with EWS servers including other ClearSCADA servers.

The server supports EWS clients using 2011/05 version and requests for the following:
• GetWebServiceInformation
• GetContainerItems
• GetItems
• GetValues
• SetValues
• GetHistory
• GetAlarmsEvents
• GetUpdatedAlarmEvents
• AcknowledgeAlarmEvents
• GetAlarmEventTypes

The EWS client driver is based on the Simple Driver architecture and includes a server, scanner and point objects.  The help for the OPC-XMLDA driver can be used as a temporary reference until the EWS driver help is available,  the OPC-XMLDA driver is very similar to the EWS driver. The client driver can connect and recover values for IDs in the CWS server. It does not support recovery of alarm/event data or querying for historic data.

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