Introduction to ABB GRBTU 3BSE013175R1
The ABB GRBTU 3BSE013175R1 is a high-reliability bus terminal unit, renowned as the “intelligent communication hub” in industrial automation systems. As a key component of ABB’s S800 I/O series, it specializes in realizing seamless data exchange between PROFIBUS DP networks and distributed I/O stations, while undertaking signal isolation and processing tasks to prevent electrical interference between devices. This module excels in deterministic communication with cycle times below 1ms, ensuring precise synchronization between control commands and field equipment—making it a staple in automotive welding lines, water treatment distributed control systems, and chemical process control. Its industrial-grade design features 1500V AC galvanic isolation and advanced EMC protection, maintaining stable operation in harsh environments with strong electromagnetic noise. The modular structure supports hot-swapping and automatic baud rate detection (9.6 Kbps to 12 Mbps), simplifying on-site configuration and maintenance, and significantly reducing system downtime.
3BSE013175R1 Key Technical Specifications
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Device Type: Industrial bus terminal unit for PROFIBUS DP communication and signal processing
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Core Function: Data transmission between distributed I/O stations and main controller; signal isolation and conditioning
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Communication Protocols: Supports Modbus TCP/IP, EtherCAT, PROFIBUS DP; communication rate 10/100 Mbps
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Data Handling Capacity: Up to 244 bytes of I/O data per direction; error rate below 10⁻⁹
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Power Supply: 24V DC (nominal); input current 0.5A; output current 0.5A
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Isolation Performance: 1500V AC galvanic isolation between network and I/O; 500V AC between channels
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Operating Environment: Temperature -20°C to +70°C; humidity 5-95% (non-condensing)
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Storage Environment: Temperature -40°C to +85°C; suitable for long-term storage in harsh conditions
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Physical Specifications: 125mm × 115mm × 120mm; weight approximately 0.5kg; DIN rail mounting
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Protection Features: EMC compliant with IEC 61000-4; overcurrent protection; short-circuit prevention
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Mechanical Design: Aluminum alloy housing; IP20 protection level; bus terminal auto-identification
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Certifications: CE, RoHS compliant; meets industrial communication safety standards
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