Description
ABB 3BUS208796-501 is a high-performance communication protocol gateway module from ABB’s industrial automation portfolio, dedicated to real-time data exchange and protocol conversion between heterogeneous industrial control systems. ABB 3BUS208796-501 supports bidirectional conversion among PROFINET, Modbus TCP/IP, EtherNet/IP, and Modbus RTU, enabling seamless communication between ABB AC800M controllers and third-party PLCs (e.g., Siemens S7-1500, Rockwell ControlLogix). ABB 3BUS208796-501 is equipped with dual redundant Gigabit Ethernet ports and RS-485/RS-232 serial interfaces, ensuring uninterrupted data transmission in high-availability industrial environments. ABB 3BUS208796-501 features 2500V AC channel isolation and 6kV surge protection, maintaining signal integrity in high-EMI settings without external safety barriers. ABB 3BUS208796-501 integrates a built-in web server for remote configuration and diagnostics, supporting firmware updates without system downtime. ABB 3BUS208796-501 has a wide operating temperature range of -40°C to 70°C and IP20 protection, making it suitable for harsh industrial sites like power plants and petrochemical facilities.
Technical Parameters ABB 3BUS208796-501
| Parameter | Value |
|---|---|
| Product Model | ABB 3BUS208796-501 (Industrial Protocol Gateway Module) |
| Supported Protocols | PROFINET IO RT, Modbus TCP/IP, EtherNet/IP, Modbus RTU |
| Communication Interfaces | 2 × Gigabit Ethernet (redundant), 2 × RS-485, 1 × RS-232 |
| Data Throughput | 100 Mbps (Ethernet), 115.2 kbps (serial) |
| Channel Isolation | 2500V AC (channel-to-channel, channel-to-ground) |
| Surge Protection | 6kV contact discharge |
| Configuration | Web server, ABB Control Builder Plus, Modbus configuration tool |
| Power Supply | 24V DC (20.4–28.8V DC) |
| Power Consumption | ≤ 15W |
| Operating Temperature | -40°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5–95% RH (non-condensing) |
| Dimensions | 150mm × 120mm × 50mm |
| Weight | 0.8 kg |
| Certifications | CE, RoHS, UL 508 |
Advantages and Features ABB 3BUS208796-501
- Multi-Protocol Conversion: ABB 3BUS208796-501 supports four mainstream industrial protocols, eliminating communication barriers between cross-brand automation devices.
- Redundant Communication Design: Dual Gigabit Ethernet ports ensure 24/7 data transmission stability, reducing the risk of unplanned downtime in critical processes.
- Robust Anti-Interference Capability: Channel isolation and surge protection ensure reliable operation in high-EMI industrial environments, improving data transmission accuracy.
- Remote Management: Built-in web server enables remote configuration, monitoring, and firmware updates, minimizing on-site maintenance costs.
- Wide Environmental Adaptability: Broad temperature range and IP20 protection adapt to harsh industrial conditions, suitable for diverse outdoor and indoor applications.
Application Cases
- Power Generation: A thermal power plant deployed ABB 3BUS208796-501 to connect ABB AC800M controllers with Siemens S7-1500 PLCs for turbine control. Its redundant Ethernet design withstood grid fluctuations, reducing communication failures by 40% and ensuring stable power generation.
- Petrochemical Industry: An oil refinery used ABB 3BUS208796-501 for process control system integration, converting Modbus RTU signals from field sensors to PROFINET for ABB DCS. Hot configuration capability allowed protocol adjustments without production halts, cutting downtime costs by 35%.
- Metallurgy: A steel mill integrated ABB 3BUS208796-501 into its blast furnace automation system, enabling data exchange between legacy Modbus RTU devices and new EtherNet/IP-based SCADA. Its surge protection prevented damage from electrical surges, extending system lifespan by 5+ years.
Comparison with Competitors
| Parameter | ABB 3BUS208796-501 | Siemens SCALANCE M874-3 | Rockwell 1783-US8T |
|---|---|---|---|
| Supported Protocols | PROFINET/Modbus TCP/EtherNet/IP/Modbus RTU | PROFINET/Modbus TCP/EtherNet/IP | EtherNet/IP/Modbus TCP |
| Redundant Ethernet | Standard (dual Gigabit) | Optional | Optional |
| Channel Isolation | 2500V AC | 1500V AC | 1000V AC |
| Surge Protection | 6kV | 4kV | 4kV |
| Remote Configuration | Web server (standard) | Optional license | Optional license |
| Key Advantage | Multi-protocol support, high isolation, built-in redundancy | Siemens native integration | Rockwell ControlLogix compatibility |
Selection Recommendations
- Choose ABB 3BUS208796-501 for cross-brand system integration requiring bidirectional conversion between PROFINET, Modbus, and EtherNet/IP protocols.
- Prefer ABB 3BUS208796-501 in high-availability applications (power, petrochemical) that demand redundant Ethernet and robust anti-interference performance.
- Use ABB 3BUS208796-501 for remote monitoring setups, as its web-based configuration reduces on-site maintenance time.
- Opt for ABB 3BUS208796-501 in harsh industrial environments, leveraging its wide temperature range and surge protection to ensure reliable operation.
Precautions
- Ensure ABB 3BUS208796-501 is powered with 24V DC within the 20.4–28.8V range to avoid unstable operation or damage.
- Configure redundant Ethernet ports properly to maximize communication reliability and prevent single-point failures.
- Use shielded cables and proper grounding to enhance ABB 3BUS208796-501’s anti-interference performance in high-EMI environments.
- Update firmware regularly via the web server to maintain compatibility with new protocols and security patches.
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