Product Overview

The ABB DSBB 170A, identified by the part number 57310256-EB, is a fundamental bus interface and backplane component designed for the Advant Controller 450 (AC450) and MasterPiece 200 series. This unit serves as the high-speed communication backbone within the controller rack, facilitating the deterministic exchange of data between the central processing unit and various I/O modules. Specifically optimized for digital signal routing, the DSBB 170A provides the electrical and logical pathways required for 16-channel output operations, ensuring that binary commands reach actuators, relays, and valves without signal degradation. Its architecture is engineered to provide low-latency performance in complex Distributed Control Systems (DCS), making it a critical asset for maintaining the synchronization of automated industrial processes.

Hardware Parameters and Key Technical Characteristics

The DSBB 170A is defined by its robust bus-coupling capabilities and its specialized design for high-integrity signal distribution.

• Model Number DSBB 170A

• Order Code 57310256-EB

• Module Type Bus Back Plane / Bus Module

• System Series AC450 / Advant Controller 400

• Channel Support 16-channel binary signal distribution capability

• Data Throughput High-speed parallel bus architecture for real-time control

• Diagnostic Integration Hardware-level monitoring for bus integrity and communication faults

• Environmental Resilience Designed for continuous operation in vibration-prone industrial racks

• Mounting Footprint Optimized for standard ABB AC450 sub-rack configurations

• Physical Weight 0.26 kg

• Dimensions 2 x 24.9 x 24.4 cm

• Product Origin Sweden

Industrial Applications and Operational Use Cases

The DSBB 170A 57310256-EB is primarily deployed in heavy industry where centralized control of numerous discrete field devices is required.

• Power Station Control Acting as the communication link for digital output modules managing breaker operations and protective relay signaling in substations.

• Chemical Process Automation Providing the reliable bus backbone for solenoid valve manifolds and motor starter circuits in explosion-proof cabinet configurations.

• Manufacturing Assembly Lines Coordinating the high-speed triggering of pneumatic actuators and proximity sensors through synchronized bus data transfer.

• Legacy System Support Serving as a direct replacement component for aging AC450 racks, ensuring continued operation of established DCS infrastructures.

• Distributed I/O Coordination Managing the signal pathways for remote I/O stations, ensuring that centralized processor commands are executed at the field level with millisecond precision.