DSBC176: Product OverviewThe DSBC176 is a communication module designed for ABB’s Triconex Safety Instrumented System (SIS) platform. This module serves as the interface between the triple modular redundant (TMR) safety controller and external devices or systems using serial communication protocols. Installed in a Triconex chassis, it enables data exchange with host systems, operator workstations, and other control systems while maintaining the integrity and security of the safety system. The module facilitates the transmission of process data, system diagnostics, and event records to higher-level systems for monitoring and analysis.The module’s design incorporates the TMR architecture characteristic of the Triconex system, ensuring that communication integrity is maintained even in the event of a component failure. It supports various serial protocols that allow integration with distributed control systems (DCS), supervisory control and data acquisition (SCADA) systems, and asset management solutions. This enables comprehensive system monitoring and facilitates condition-based maintenance strategies for the safety system.
DSBC176 3BSE019216R1
DSBC176: Technical Specifications
•• Model Number: DSBC176
•• Order Number: 3BSE019216R1
•• Manufacturer: ABB (Triconex)
•• Product Type: Communication Module
•• Architecture: Triple Modular Redundant (TMR)
•• Communication Interface: Serial communication ports
•• Protocols: Supports industry-standard serial protocols
•• Data Rate: Programmable baud rates up to 115.2 kbps
•• Isolation: 1500V RMS port-to-port and port-to-ground isolation
•• Power Supply: 5VDC from Triconex backplane
•• Power Consumption: < 5W
•• Operating Temperature: 0°C to 60°C (32°F to 140°F)
•• Safety Certification: Suitable for use in SIL 3 applications
•• Status Indicators: LED indicators for power, activity, and fault status
DSBC176 3BSE019216R1
Core Features & Customer ValueThe TMR architecture ensures communication reliability by employing three independent communication circuits that are continuously compared. If a discrepancy is detected, the system can continue operation using the two healthy circuits while alerting operators to the need for maintenance. This design prevents single points of failure from compromising communication integrity, which is critical for safety system monitoring and data collection.The module’s support for multiple serial protocols enables flexible integration with various host systems and peripheral devices. This allows safety system data to be incorporated into plant-wide monitoring and control strategies without compromising the safety system’s integrity. The module maintains physical and electrical isolation between the safety system and external networks, providing an additional layer of security.Hot-swappable capability allows for module replacement without system shutdown, minimizing maintenance-related downtime. The module’s comprehensive diagnostic capabilities provide early warning of potential issues, enabling proactive maintenance during planned outages rather than emergency repairs.Typical ApplicationsIn hydrocarbon processing facilities, the DSBC176 is used to interface the Emergency Shutdown System (ESD) with the distributed control system (DCS). This allows operators to monitor safety system status and process variables from the main control room while maintaining complete separation between the basic process control system and the safety instrumented system.In power generation applications, particularly in turbine control systems, the module facilitates data exchange between the safety system and the plant computer system. This enables long-term trending of safety system parameters and supports predictive maintenance programs by providing access to detailed diagnostic information.
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Full 12-month warranty on all components
Full 12-month warranty on all components
