GE IC670GBI002 – A Reliable Genius Bus Interface for Field Control Systems
The GE IC670GBI002 is a Bus Interface Unit (BUI) from the Field Control series. It serves as the header module for each Field I/O system, managing the interface between a master PLC or computer over the Genius Bus. This unit exchanges up to 128 bytes of input and 128 bytes of output data, supporting up to eight Field Control I/O modules. Engineers value its robust design, hot insertion and removal capability, and diagnostic functions. Let’s explore its key specifications and practical benefits.
Key Technical Specifications
The IC670GBI002 operates with a nominal supply voltage of 24 VDC, within a range of 18–30 VDC. It also accepts nominal 115 VAC or 125 VDC, making it versatile for different plant power systems. Power consumption reaches 16.8 watts at full load, and the unit delivers 6.5 VDC output at up to 1.4 A to connected modules. Inrush current peaks at 15–50 A for up to 3 ms. The module holds up for 10 ms, ensuring stable operation during brief power dips.
Environmental Reliability
This BUI operates reliably in temperatures from 0 to 55 °C and stores safely from –40 to 85 °C. It handles non‑condensing humidity from 5 to 95%. With a mean time before failure (MTBF) of 183,000 hours, the IC670GBI002 offers long‑term dependability. The associated terminal block boasts a 600,000‑hour MTBF. It meets UL, CE, and FCC standards, and is intended for non‑hazardous locations.
Data Exchange and I/O Capacity
The IC670GBI002 exchanges data via the Genius Bus protocol. It accommodates up to 128 bytes of input and 128 bytes of output per scan. This capacity suits applications requiring moderate I/O counts, such as discrete control or basic analog monitoring. The unit supports hot insertion and removal, allowing you to replace modules without rewiring or reconfiguring the system. Redundant CPU assemblies are also supported, enhancing system availability.
Compatibility and Installation
This interface works with Series 90‑30, 90‑70, Series Six, and Series Five PLCs, as well as Genius handheld monitors version 4.6 or later. It mounts on a standard DIN rail (minimum 108 mm width) and accepts AWG #14 wire. The unit includes a terminal strip for power and communication connections. You can also daisy‑chain communication cables through the terminal block for multi‑drop networks.
Practical Value for Industrial Automation
The IC670GBI002 simplifies system integration by managing diagnostics for both itself and connected I/O modules. It relays diagnostic data to a host device or handheld monitor, speeding up troubleshooting. Its noise resistance meets typical industrial levels. For engineers upgrading or maintaining a GE Field Control system, this BUI provides a proven, reliable interface. Although now discontinued, it remains available through specialized suppliers like PLC Source PRO.
In summary, the GE IC670GBI002 delivers essential Genius Bus connectivity, flexible power options, and robust reliability. Its hot‑swap support and diagnostic capabilities make it a practical choice for demanding industrial environments.