OPC DA XML standards will be the future for accessing data of Shop Floor systems from ERP Systems. The main advantages are,
1. To avoid DCOM related OPC configuration settings while setting up of OPC Client systems
2. No need to install OPC Client on user systems
3. Current ERP systems are updated with very good webservices consumption modules (e.g. SAP PI (XI))
4. Security related services are intact and easy to configure as it is webservice
The sample OPC XML DA Gateway servers and demo servers are available at http://www.advosol.com/pc-6-5-xml-da-server-side-gateway.aspx
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