ABB LDGRB-01 (Order Number 3AFE61320954P0001) Bus Communication Interface Module
I. Basic Information
Module Model: LDGRB-01
Original Factory Complete Material Code: 3AFE61320954P0001 (3AFE61320954 is the base part number, P0001 represents the production batch/firmware version)
System Affiliated: ABB Advant Master / Advant OCS Older Generation DCS Control System (The platform used by early thermal power, papermaking, and metallurgical large-scale units, which has been discontinued)
Module Category: Backplane Bus Communication Interface Card (Bus Interface Module), which is the core communication board inside the control station, responsible for data interaction between the CPU and the I/O sub-rack, and not an external Ethernet communication card.
Core Communication Function
Internal High-Speed Bus Data Forwarding
Connects the main control processor unit with the local / remote I/O racks, collects DI/AI on-site measurement points, and issues DO/AO control instructions, serving as the “communication bridge” for the entire station’s I/O data exchange.
Bus Signal Isolation and Anti-Interference
Built-in photoelectric isolation circuit, isolates on-site surges and electromagnetic interference, preventing interference from entering the main control CPU and causing system freeze or logical misoperation.
Communication Self-Diagnosis
Real-time monitoring of bus communication status. Once there is bus packet loss, communication interruption, or poor contact on the backplane, it will report a fault alarm to the upper-level operation station, facilitating rapid troubleshooting.
Supports Redundant Communication Architecture
Can be used in conjunction with control station redundancy configuration. When the main communication board fails, it can switch to the backup link to ensure uninterrupted unit control.
Hardware and Electrical Parameters
Power Supply Method: Powered by the backplane of the DCS rack (internal + 5V, +24V power supply), no need for external separate wiring power supply
Operating Temperature: -25℃ ~ +70℃, capable of long-term operation in the high-temperature environment of power plant cabinets and strong electromagnetic environment for 7×24 hours
Installation Method: European-style card cage backplane plug-and-unplug installation, redundant configuration supports hot-swappable replacement while powered on
Built-in Status Indicators: Includes power, bus communication, and fault indicators, allowing for intuitive judgment of communication status
Origin: Produced by the original factory in Europe, spare parts in stock are mainly based on disassembly testing, refurbishment, and inventory items
Model Code Interpretation
LDGRB-01: General model name of the board card
3AFE61320954: ABB original factory base part number
3AFE61320954P0001: Complete order code, purchasing spare parts must verify the complete part number + PCB hardware version and firmware version. Inconsistent versions may result in bus incompatibility and complete I/O disconnection.
Typical Application Scenarios
Boiler and steam turbine auxiliary equipment of thermal power plants, Advant older DCS control station I/O bus communication
Local I/O expansion communication for old production lines in papermaking, metallurgy, and chemical industries
Internal communication of ABB DCS rack for excitation equipment of power generation units
Replacement of old equipment parts and DCS system expansion maintenance for old units
There are no reviews yet.