An OPC is a software interface standard that allows Windows programs to communicate with industrial hardware device, such as a PLC, DCS, or RTU, and translate the data into standard OPC format. Simply, OPC is a middleware between SCADA software and hardware devices. Regarding this architecture, OPC is an open standard, which means lower costs for the manufacturers and more options for the users. Hardware manufacturers don't have to support different kinds of SCADA but OPC standard format. Meanwhile, the users can choose any OPC client software they need. It's a win-win solution to bridging hardware and software for the two parties.
Traditional OPC Servers vs. Moxa's Active OPC Server
Traditionally, OPC servers only support the "Pull" architecture for I/O devices. This means that your SCADA system would use a continuous polling method to collect relevant data. Moxa's Active OPC server with non-polling architecture supports the standard OPC protocol, but also offers event-driven, active (or "Push") communication with I/O servers to provide real-time signals when the I/O status is changed. You will be able to efficiently reduce data traffic and make use of this optimal bandwidth-saving solution.
By adopting Moxa's Active OPC server, users don't need to create tags one by one. With ioAdmin, you can save time by uploading I/O configurations automatically.
Moxa Active Ethernet I/O + Active OPC Server + SCADA = Seamless Active Ethernet I/O Solution
Moxa is committed to bringing the most innovative solutions to the I/O market. Today, we are proud to deliver our Active OPC server to eliminate the gap between Active Ethernet I/O and SCADA software. From now on, all SCADA users can be benefited by the "ACTIVE" functions. In the past, the users have to write a proprietary program to receive ACTIVE messages. It's difficult for them to do this. With Active OPC server, the SCADA users only need to define the OPC client in SCADA software and generate I/O tags in Moxa's Active OPC server with Moxa ioAdmin. An easy-to-use function is designed to generate I/O tags in Moxa Active OPC server. Users only need to define the IP address of OPC server in ioLogik then the devices will upload tag information automatically.
Active OPC server can now be downloaded from Moxa's website to turn your existing "Pull" architecture into "Push" architecture.
