ABB DSBC172 | Bus repeater CPU / bus supervision module

Description

Detailed Product Overview

The ABB DSBC172 (57310001-KD) is a bus repeater CPU designed for the communication infrastructure of ABB S100 I/O systems. It supports bus signal repetition and supervision, helping maintain communication between components in the control-system I/O architecture.

In an automation system, the controller exchanges data with input and output modules through the relevant I/O communication infrastructure. The DSBC172 performs a bus-level function rather than directly measuring field signals or driving analog and digital outputs. Its role is therefore distinct from that of an individual I/O module.

Bus repetition is relevant when the communication architecture requires a signal to be repeated along the bus. Bus supervision supports monitoring of communication conditions. These functions help engineers distinguish communication-path issues from problems associated with individual I/O channels or field devices.

The module is associated with ABB Advant OCS systems using Master Software and with the MasterPiece 200 and MasterPiece 200/1 central units. This system association is an important part of product selection. A module should not be treated as interchangeable with other ABB communication boards solely because they share a similar appearance or product-family designation.

For maintenance and procurement, the complete type designation and order number should be recorded together. The installed controller, I/O bus arrangement, module connections, and applicable hardware documentation should also be checked before replacement. This is particularly important when working on an existing installation where the configuration may depend on the original system design.

ABB Advant Master -S100 I_O System

Applications & System Role

The DSBC172 is used in the bus communication layer of compatible ABB S100 I/O architectures.

• Bus signal repetition: Supports repetition of communication signals within the I/O bus arrangement.

• Bus supervision: Provides a bus-supervision function within the control system.

• Controller-to-I/O communication: Supports the communication infrastructure associated with MasterPiece 200 and MasterPiece 200/1 systems.

• Maintenance and replacement: Provides a specific hardware identification for service work on compatible Advant OCS installations.

Its suitability for a particular system depends on the installed hardware architecture and the documented bus configuration.

Positioning Interface – DSDP 170

The DSDP 170 provides a complete interface for four position transducers.

ABB Advant Master -S100 I_O System