MatrikonOPC Tunneller: Worlds most used OPC Tunnelling Solution

Communicate securely and Eliminate your DCOM Headaches

DCOM is the #1 most common OPC Configuration issue that OPC Technology users face. OPC Tunnelling Products such as MatrikonOPC Tunneller offer you an easy way to bypass DCOM, and quickly test your OPC communications to determine if it is indeed DCOM that is impacting your OPC Connectivity. If you are able to transfer data using OPC Tunnelling technology then you can focus your efforts in troubleshooting and configuring DCOM or just use the OPC Tunnelling product.

MatrikonOPC Tunneller is installed on both client and server PCs, interfacing with the OPC client and server via local COM. The two copies of Tunneller then securely communicate with one another using one of a number of supported protocols, including TCP/IP.

What is DCOM?

DCOM is a Microsoft technology and it stands for Distributed Component Object Model. It is used for RPC (Remote Procedure Call) systems to enable communication between COM-based applications over the network.

How does DCOM impact OPC Classic communications?

All OPC DA (Data Access), A&E (Alarms & Events), and HDA (Historical Data Access) communication is based on COM and DCOM. OPC Client and Servers use COM to communicate with each other over the same windows based machine and use DCOM to communicate directly with each other across a network. Configuration is always required on the system where the OPC server is installed to allow remote clients to connect to it over the network.

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 Download the Quick OPC DCOM Configuration Guide