XML-DA Client Side Gateway

The XML-DA Client Side Gateway is an OPC DA converter server that enables OPC DA client applications to access XML-DA servers. The XML-DA servers may be remote without firewall issues thanks to the XML DA HTTP based communication.   read more...
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Evaluation License
SKU:XDAGWCS-EV
The Evaluation License grants the non-exclusive right to use the software for evaluation and testing purposes only. The software is time restricted to run for only 30 minutes at a time. Please read the license agreement.
Price: $0.00
Single Instance License with Support
SKU:XDAGWCS-1S
Binary License for a single gateway instance. A 90 days support subscription is included. The subscription includes updates and help with the gateway configuration and XML DA server communication issues.
Price: $645.00
Single Instance License without support
SKU:XDAGWCS-1
Binary License for a single gateway instance. No support is included. Choose this license if the application was tested previously or if you are sure that you are not going to need any help and support services.
Price: $345.00
10-Pack
SKU:XDAGWCS-10
Package with 10 Binary licenses, each for a single gateway instance. No support is included. If you expect any support services then purchase additionally the XDAGWCS-SV10 subscription.
Price: $1,745.00
Subscription for XDAGWCS-1S Licenses
SKU:XDAGWCS-SV1S
The Subscription Renewal extends the subscription of the underlying license for a 12 month period from the subscription expiration date (not the purchase date). Owners of multiple binary licenses may update up to 10 gateway instances that have a license for this product.Please read the license agreement.
Price: $295.00
Subscription for XDAGWCS-1 licenses
SKU:XDAGWCS-SV1
The Subscription Renewal extends the subscription of the underlying license for a 12 month period from the subscription expiration date (not the purchase date). Please read the license agreement.
Price: $395.00
Subscription for XDAGWCS-10 license pack
SKU:XDAGWCS-SV10
The Subscription Renewal extends the subscription of the underlying license for a 12 month period from the subscription expiration date (not the purchase date). Owners of multiple binary licenses may update up to 10 gateway instances that have a license for this product.Please read the license agreement.
Price: $395.00

XML-DA Client Side Gateway      Product DescriptionReference ManualVersion Log

OPC XML DA Converter

OPC DA converter server that enables OPC DA client to access XML DA servers.

The OPC-DA Client to XML-DA Server Gateway (XDAGW-CS) enables OPC DA client applications to access XML -DA servers.
The XML-DA Gateway offers a way to allow existing OPC DA client applications access to remote servers and to upgrade step-by-step to web services technology.
The gateway is provided in version for IIS web services  and one for WCF. 
WCF offers more communications options but is useful only when both sides, client and server, are WCF based.

XDAGW-CS is an OPC DA V2/V3 compliant server with a built-in XML-DA V1.01 compliant client.
It enables OPC DA clients to access devices with XML-DA servers.
The gateway creates XML-DA subscriptions for all items referenced by a client and updates its data cache periodically. The clients can read data quickly out of the cache.

 

Why use OPC XML-DA?
The main reason for using the gateway is to enable OPC DA clients to access remote servers.
OPC XML-DA provides the foundation for multi-platform interoperability because it is based on Web Services communication instead of the Windows specific DCOM. It simplifies sharing and exchange of data among the various levels of the plant hierarchy (low level devices and up to enterprise systems), and to a wider range of platforms.
XML DA is a rather simple specification that is easy to implement on all web services platforms. The functionality is restricted to functionality defined in the OPC DA specification. 
If access to Historical and Alarms&Events servers is required the COMtoUA Converter has to be used instead.

 

Security
Web services don't provide a high level of security. Using HTTPS is the only option.
The gateway implements effective security measures. It can be configured to restrict the server access to an item subset. E.g. make some items read-only or allow only a subset of the items to be accessed.

The XDAGW-SS gateway is provided in a version for .NET3 that can be configured for secure communication.
In communication with a .NET3 based XML DA server, any WCF communication bindings can be used, including X.509 certificates

 

System Requirements

  • Windows 7, 8.x,10, Windows Server 2008,2012,2016
  • .NET 4.x
  • IIS with ASP.NET or WCF
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