ABB DSSB-01C 68300746C Comm Board for ACS

ABB DSSB-01C 68300746C Comm Board for ACS

The ABB DSSB-01C (part number 68300746C) is a dedicated communication interface board engineered for seamless integration within ABB’s ACS-series variable speed drive platforms. In modern industrial automation, a drive system is never an isolated component — it is a critical node within a layered control architecture that spans the control layer, I/O layer, network layer, power layer, HMI layer, and actuator layer. The DSSB-01C is specifically designed to fulfill the communication bridging role within this hierarchy, ensuring that the ACS drive receives, processes, and transmits control signals with the consistency and reliability that demanding industrial environments require.

At the control layer, the DSSB-01C interfaces directly with the drive’s internal logic, enabling the ACS800 or ACS600 series CPU and control boards to exchange real-time process data with higher-level supervisory systems. This board acts as the communication backbone between the drive’s internal firmware and external fieldbus or serial communication networks, making it indispensable for any system architect who requires deterministic signal flow and low-latency command execution across the automation stack.

Product Specification Table

System Compatibility Notes

The DSSB-01C does not operate in isolation. Its value is fully realized when it is deployed as part of a coordinated ABB drive control architecture. In a typical ACS800 installation, the DSSB-01C works in conjunction with the RDCO-02C DDCS communication module, which handles the optical fiber-based DDCS protocol link between the drive and the ABB AC800M or AC800PEC controller. Together, these two boards form the communication spine of the drive system, ensuring that torque references, speed feedback, fault status, and diagnostic data are continuously exchanged between the drive and the control platform.

At the power layer, the AINT-02C inverter control board and the APOW-01C power supply board provide the electrical foundation upon which the DSSB-01C operates. Stable internal power delivery is essential for maintaining communication integrity, particularly in high-cycle applications such as metal rolling mills or large compressor drives where the drive is subjected to continuous load variation. The DSSB-01C’s signal routing function depends on clean, regulated internal power, making the APOW-01C a critical upstream dependency.

At the I/O layer, the AIMA-01C analog I/O extension board and the AITC-02C pulse encoder interface board feed process signals into the drive’s control section. The DSSB-01C ensures that these signals are correctly routed to the appropriate communication channels, whether they are destined for a local HMI panel, a PROFIBUS DP network, or a Modbus RTU supervisory system. In multi-drive configurations — such as those found in paper machine drives or crane hoist systems — the DSSB-01C enables the DDCS fiber optic master-follower link that synchronizes multiple ACS800 units under a single control reference.

At the HMI layer, the CDP312R control panel connects to the drive via the DSSB-01C’s communication routing, providing operators with real-time parameter access, fault history, and drive status visualization. In distributed control architectures where the drive is mounted remotely from the control room, the DSSB-01C’s reliable signal bridging function ensures that panel communication remains stable even over extended cable runs. For systems using the NPBA-12 PROFIBUS adapter module, the DSSB-01C provides the internal interface that allows the drive to appear as a standard PROFIBUS DP slave on the plant network, enabling seamless integration with Siemens S7, ABB AC500, or other PLC platforms acting as PROFIBUS masters.

Industrial Application Notes

The ABB DSSB-01C 68300746C finds application across a wide range of process and discrete manufacturing environments where ACS-series drives are deployed as part of a larger automation architecture.

In power generation and utilities, ACS800 drives equipped with the DSSB-01C are used to control boiler feed pumps, cooling water pumps, and induced draft fans. The communication interface board enables the plant DCS — typically an ABB System 800xA or Emerson DeltaV — to issue speed references and receive feedback via DDCS or PROFIBUS, maintaining precise flow control across the generation cycle.

In petrochemical and refinery applications, the DSSB-01C supports the integration of ACS drives into SIL-rated safety architectures. The board’s reliable communication function ensures that emergency stop commands and process interlock signals are transmitted without delay, supporting the functional safety requirements of API 670 and IEC 61511 compliant systems.

In mining and minerals processing, ACS800 drives with DSSB-01C boards are deployed on conveyor belt drives, ball mill drives, and slurry pump systems. The multi-drive DDCS master-follower architecture enabled by the DSSB-01C allows load sharing across parallel drive units, reducing mechanical stress and extending equipment service life in high-tonnage applications.

In water and wastewater treatment, the DSSB-01C enables ACS drives to integrate with SCADA systems via Modbus TCP or PROFIBUS DP, providing remote monitoring and control of pump stations, aeration blowers, and sludge handling equipment. The board’s stable communication performance supports 24/7 unattended operation, which is essential for municipal water infrastructure.

In packaging and material handling, the DSSB-01C supports high-speed coordinated motion control by maintaining low-latency communication between the drive and the line PLC, ensuring that conveyor speeds, tension control, and indexing functions remain synchronized across the production line.

Product Compatibility FAQ

Q1: Is the DSSB-01C 68300746C compatible with both ACS600 and ACS800 drive platforms?
The DSSB-01C is primarily associated with the ACS800 drive series, where it serves as the internal communication interface board within the drive’s control section. Compatibility with ACS600 variants depends on the specific drive configuration and control board revision. It is recommended to cross-reference the drive’s hardware manual and confirm the board slot designation before installation. Our technical team can assist with compatibility verification prior to shipment.

Q2: What communication protocols does the DSSB-01C support, and how does it integrate with third-party PLC systems?
The DSSB-01C functions as an internal routing board that supports the drive’s native DDCS (Drive-to-Drive Communication System) optical fiber protocol and provides the internal interface for optional fieldbus adapter modules such as the NPBA-12 (PROFIBUS DP), NMBP-01 (Modbus), or NETA-21 (Ethernet). This allows the ACS drive to integrate with virtually any PLC or DCS platform that supports these standard industrial protocols, including ABB AC500, Siemens S7-300/400, Rockwell ControlLogix, and Schneider Modicon systems.

Q3: What does the warranty terms confirmed during quotation cover, and what is the recommended maintenance strategy for long-term deployment?
All DSSB-01C 68300746C boards supplied by ZYPLC are covered by a warranty terms confirmed during quotation against manufacturing defects and functional failure under normal operating conditions. Each board is tested prior to shipment to verify communication function and electrical integrity. For long-term deployment, we recommend maintaining a spare DSSB-01C in the site’s critical spare parts inventory, as communication board failure can result in complete drive communication loss. ZYPLC supports ongoing supply continuity for obsolete and legacy ABB drive components, ensuring that your system remains maintainable throughout its operational lifecycle.