ABB DSBC172 57310001-KD | S100 Bus Repeater Master

Description

Key Technical Specifications

ABB’s product information identifies 57310001-KD as DSBC 172 Bus Repeater Master. Another ABB-derived product record describes the same hardware as a Bus Supervision Board, while the long description identifies its function as Bus Repeater Master.

That distinction matters. The DSBC172 is not simply a generic network repeater. It belongs to ABB’s legacy Advant Master/S100 I/O architecture. Available equipment records also list DSBC172 among ABB Advant Master hardware.

Some secondary listings assign generic protocols such as DeviceNet, CANopen, EtherCAT, or Modbus to this part. Those claims should not be used as the basis for procurement; the ABB-specific documentation identifies the unit as an S100/Advant bus repeater rather than a general-purpose multi-protocol gateway.

Application Scenarios & Pain Points

An S100 bus fault can be particularly difficult to diagnose because the controller, I/O modules, and field devices may all remain powered. The problem is communication integrity, not necessarily loss of power.

• Advant Master S100 I/O: DSBC172 provides bus-repeater functionality within ABB’s legacy distributed I/O architecture.
• Distributed I/O sections: Where the physical bus arrangement requires signal regeneration or repetition, the DSBC172 can serve as the dedicated bus infrastructure component.
• Legacy DCS maintenance: It is particularly relevant when an existing Advant installation must remain in service and an original bus board has failed.
• Extended cabinet/rack arrangements: A repeater can become important when bus communication must pass between separate I/O sections and signal quality becomes a practical limitation.

Field note: If a remote I/O section drops offline intermittently, don’t immediately replace the DSBC172. Check the bus cable, termination, connector condition, grounding, and adjacent interface hardware first. A loose connection can mimic a failing repeater surprisingly well.

DSBC172 57310001-KD

Related Products

• ABB DSBB110A 57330001-Y — A related Advant Master board used in the I/O environment. It serves a different electrical/system function and should not be treated as a substitute.
• ABB DSAO120A 3BSE018293R1 — Eight-channel analog output board used in ABB I/O systems. It provides process outputs, while handles bus infrastructure.
• ABB DSAI133A 3BSE018290R1 — Analog input hardware for I/O. It acquires process measurements rather than repeating the I/O bus.
• ABB DSAI146 3BSE007949R1 — Another analog input reference. It is complementary field-I/O hardware, not a communication repeater.
• ABB DSDI/DSDO series — digital input/output boards. These modules handle discrete field signals and depend on the surrounding bus architecture.
• ABB DSCS131 57310001-LM — A communication-related Advant Master module with a different function. It should not be used as a direct replacement for without system-level verification.
• ABB DSPC157 57310001-GP — Processor/control hardware from the Advant Master family. It performs a substantially different role from the bus repeater.
• ABB MasterPiece 200 — A related legacy ABB control platform that may coexist with I/O hardware. The exact system architecture determines whether a particular installation is applicable.

The Engineer’s Guide: Field Pitfalls to Avoid

⚠️ Do not confuse “bus repeater” with a generic Ethernet or fieldbus repeater.

ABB identifies specifically as a Bus Repeater Master within its legacy control-system architecture.

How to avoid it: Match / 57310001-KD against the system documentation and physical board label. Do not substitute a generic DeviceNet, CAN, Ethernet, or Modbus repeater.

⚠️ Watch for part-number suffixes and hardware revisions.

Repair inventories show variants such as 57310001-KD/3, while the base ordering number is 57310001-KD.

How to avoid it: Photograph the complete identification label before removal. Record the revision suffix, PCB revision, and installed rack position. For a legacy system, those few characters can matter.

⚠️ Don’t overlook the bus itself.

A failing cable, poor termination, oxidation on contacts, or grounding problem can generate the same symptoms as a defective repeater.

How to avoid it: Before condemning the board, inspect the bus wiring end-to-end and compare fault behavior with the system documentation. Look closely at connector contacts; years of cabinet vibration can create intermittent contact without obvious physical damage.

Frequently Asked Questions (FAQ)

What is ABB 57310001-KD?

ABB 57310001-KD is a Bus Repeater Master used in ABB’s Advant Master/ I/O control architecture. ABB-derived product information also describes it as a Bus Supervision Board.

Is an I/O module?

Not in the conventional sense. It does not provide ordinary analog or digital field channels. Its role is associated with I/O bus communication and signal repetition, supporting the infrastructure between control and I/O sections.

What system is used with?

The belongs to the ABB Advant Master family and is associated with the I/O architecture. It is therefore primarily relevant to legacy ABB DCS installations rather than modern generic PLC networks.

Can I replace with a generic bus repeater?

No. A generic repeater may use a completely different electrical layer and protocol. The is an ABB system-specific component. The replacement must match the bus architecture and the installed Advant configuration.

Is 57310001-KD the same as ?

Yes. ABB-derived product records identify 57310001-KD as the product ID and DSBC 172 as the ABB type designation.

What should I check before buying a used ?

Verify:

1. / 57310001-KD identification.
2. Any revision or suffix after the base part number.
3. PCB and connector condition.
4. bus interface condition.
5. Existing rack and bus topology.
6. Actual functional test results.

A board that looks clean and powers up is not necessarily a tested bus-repeater spare.