The ABB PU519 3BSE018681R1 is a high-performance Real Time Accelerator (RTA) board designed for use in ABB Advant OCS and 800xA control systems. This specialized communication board is installed in a PC or server environment to provide a dedicated, high-speed interface between the control network (Control Network/MB300) and the operator workstations or servers, ensuring deterministic data exchange for time-critical industrial processes.

Technical Datasheet & Specifications

Product Technical Description

The PU519 3BSE018681R1 acts as a hardware-based co-processor that offloads network communication tasks from the main computer CPU. By handling the complex protocols of the MasterBus 300 network locally on the board, it guarantees that process data—such as alarms, events, and trend values—are processed in "real-time" without being affected by the computer's operating system latency.

Key Technical Attributes include:

• Deterministic Communication: Provides a reliable and predictable time-slot for data transmission, which is essential for stabilizing control loops across a distributed network.

• Onboard Memory: Features dedicated buffer memory to manage large bursts of data during process upsets or high-alarm traffic, preventing data loss.

• Protocol Offloading: Executes the lower layers of the communication stack on the RTA hardware, freeing up workstation resources for the HMI (Human Machine Interface) software.

• Legacy Support: Essential for integrating modern PC-based operator stations with classic Advant Controller 400 (AC400) and AC160 systems over MB300 networks.

Country of Origin

Origin: Sweden (ABB Automation Technologies)

Common Questions & Answers (Q&A)

Q1: What is the main purpose of the PU519 board?A: Its primary role is to allow an industrial PC to communicate directly with ABB MasterBus 300 control networks with the high speed and timing precision required for industrial automation.

Q2: Can the PU519 be installed in any standard PC?A: It requires a standard PCI slot. However, compatibility also depends on the specific version of the ABB software (e.g., Advant Station or 800xA) and the operating system's driver support for RTA boards.

Q3: How does this board differ from a standard Ethernet card?A: Unlike a standard NIC, the PU519 is purpose-built for the proprietary MB300 protocol and includes a dedicated processor to ensure that data delivery meets strict real-time deadlines.

Q4: Is the 3BSE018681R1 still supported?A: While it is a mature product widely used in existing Advant OCS installations, many systems are being migrated to Ethernet-based solutions. It remains a critical spare part for maintaining the lifecycle of MB300-based systems.