OPC DA Insights

What is OPC DA?

OPC Data Access (OPC DA) is a standard that enables the exchange of real-time data between industrial automation and control applications and hardware devices. It provides a consistent way for software applications to access data from different hardware devices, regardless of the device manufacturer or communication protocol. It is commonly used to build SCADA systems, HMIs, and other industrial automation applications where data must be aggregated from disparate sources. However, OPC DA is based on Microsoft's COM/DCOM technology, which can be complex to configure and maintain, and it is primarily suitable for Windows-based systems. Newer OPC standards, such as OPC UA, are now preferred for new deployments.

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What other technologies are related to OPC DA?

OPC DA Competitor Technologies

PItoPI

PItoPI is a data transfer mechanism used within the OSIsoft PI System, which provides similar data access functionality as OPC DA, making them competitors in certain scenarios.

mentioned alongside OPC DA in 97% (95) of relevant job posts

UFL

UFL is a data acquisition tool for the OSIsoft PI System that can be used to ingest data from various sources, thus competing with OPC DA's role in data acquisition.

mentioned alongside OPC DA in 81% (93) of relevant job posts

OPC UA

OPC UA is a successor to OPC DA, offering improved security, platform independence, and data modeling capabilities. It's a direct competitor aiming to replace OPC DA.

mentioned alongside OPC DA in 5% (554) of relevant job posts

OSI PI

OSI PI is a data historian and real-time data management system that provides similar data access and storage functionality as OPC DA, making them competitors.

mentioned alongside OPC DA in 1% (59) of relevant job posts

MQTT

MQTT is a lightweight messaging protocol often used in IoT applications. While OPC DA is typically used for industrial automation, MQTT provides a competing technology for data transport.

mentioned alongside OPC DA in 0% (134) of relevant job posts

OPC DA Complementary Technologies

Fieldbus

Fieldbus technologies (e.g., PROFIBUS, FOUNDATION Fieldbus) provide the physical layer for data transmission from devices, and OPC DA can be used to access data from Fieldbus systems through appropriate interfaces, hence complementary.

mentioned alongside OPC DA in 4% (70) of relevant job posts

Modbus

Modbus is a communication protocol often used in industrial automation. OPC DA servers can provide access to Modbus data, making them complementary.

mentioned alongside OPC DA in 1% (320) of relevant job posts

Profinet

Profinet is an industrial Ethernet protocol. OPC DA servers can be used to provide access to data from Profinet devices, making them complementary.

mentioned alongside OPC DA in 1% (173) of relevant job posts