Brief Product Description

ABB CI626 (3BSE012868R1) is a high-performance AF100 industrial communication interface module designed for ABB legacy DCS and PLC automation systems. Serving as a critical network bridge, this module enables stable high-speed data exchange between controllers, I/O units, and upper monitoring systems via the AF100 fieldbus network. Supporting mainstream industrial protocols including PROFIBUS DP and Modbus, it delivers flexible and reliable signal transmission for distributed process control. Featuring built-in communication diagnostics, industrial-grade EMC immunity and compact rack-mounted design, the CI626 ensures 24/7 continuous operation in high-interference plant environments. Fully tested surplus and refurbished ABB CI626 3BSE012868R1 modules are available for legacy ABB system communication maintenance, network expansion and retrofit projects.

Core Product Functions

• Professional AF100 fieldbus communication interface for ABB DCS and PLC system network expansion
• Supports multiple industrial protocols such as PROFIBUS DP and Modbus with adjustable baud rates from 9.6 kbps to 12 Mbps
• Real-time bidirectional data transmission between main controllers, field I/O modules and HMI monitoring platforms
• Integrated communication fault self-diagnosis function to quickly locate network disconnection and signal anomalies
• Stabilizes network data interaction and reduces communication delay and packet loss in complex industrial networks
• Facilitates smooth migration from old ISA-based systems to modern AF100 network architecture
• High electromagnetic anti-interference performance adapts to harsh power and process plant environments
• Standard rack-mounted structure for fast installation and stable docking with ABB system backplanes

• Long-term stable operation capability to meet uninterrupted industrial automation production demands

Application Scenarios

• ABB legacy DCS and PLC AF100 fieldbus network communication systems
• Thermal power plant and substation automation control network architecture
• Petrochemical, chemical and oil & gas process industrial distributed control systems
• Factory automation production line multi-device networking and data interaction platforms
• Water treatment, pharmaceutical and renewable energy industrial control communication systems
• Legacy ABB system network upgrade, communication module replacement and system retrofits

FAQ (Frequently Asked Questions)

• Q: Frequent network disconnection after installing CI626 3BSE012868R1?
  A: Check AF100 bus wiring and terminal resistance, verify protocol and baud rate configuration consistency, inspect backplane contact status, and eliminate electromagnetic interference sources.
• Q: Does ABB CI626 support hot-swap replacement?
  A: Hot swap is not recommended. Power off the control rack and perform lockout-tagout procedures to avoid overall network communication interruption.
• Q: What communication protocols does 3BSE012868R1 support?
  A: It supports AF100 bus, PROFIBUS DP and Modbus protocols with flexible baud rate adjustment for diverse field devices.
• Q: What is the main advantage of the CI626 module?
  A: It provides stable AF100 network communication, supports multi-protocol adaptation, and enables seamless legacy system network migration and expansion.
• Q: Is ABB CI626 3BSE012868R1 available for new projects?
  A: This legacy communication interface module is end-of-life for new installations. Only fully tested surplus and refurbished units are supplied for existing system maintenance and retrofits.