GE IC694BEM331 PACSystems RX3i Genius Bus Controller Module

Description

Technical Specifications

• Manufacturer: Emerson Automation Solutions (formerly GE Fanuc Automation)
• Series: PACSystems RX3i
• Model: IC694BEM331
• Module Type: Genius Bus Controller (GBC), Single‑slot
• Protocol: Genius Serial Bus (proprietary GE fieldbus)
• CPU Compatibility: RX3i CPUs with firmware v2.9 or higher
• Software Requirement: Proficy Machine Edition v5.00 SP1A or later (Logic Developer‑PLC)
• Data Exchange Capacity:
  • Per Device: 128 bytes (input/output)
  • Global Data: 128 bytes (send/receive per bus scan)
• Baud Rates (Software Configurable):
  • 153.5 Kbaud (standard/extended)
  • 76.8 Kbaud
  • 38.4 Kbaud
• Max Bus Devices:
  • 32 devices (153.5K / 76.8K baud)
  • 16 devices (38.4K baud)
• Max Modules per RX3i System: 8 modules
• Bus Topology: Daisy‑chain (linear)
• Cable Types:
  • Shielded twisted pair
  • Twinax (150Ω nominal)
  • Fiber optic (with modems)
• Bus Termination: 75Ω, 100Ω, 120Ω, or 150Ω resistors (both ends)
• Max Bus Length (Cable‑Dependent):
  • 38.4 Kbaud: 7800 ft (2377 m)
  • 76.8 Kbaud: 4500 ft (1372 m)
  • 153.5 Kbaud (extended): 3500 ft (1067 m)
  • 153.5 Kbaud (standard): 2000 ft (610 m)
• Electrical Isolation:
  • 2000VAC Hi‑Pot (input‑to‑bus)
  • 1500V transient common‑mode rejection
• Power Consumption: 300mA @ 5VDC (from RX3i backplane)
• LED Indicators:
  • OK (Green): Module power and diagnostics pass
  • COM (Green): Genius bus communication active
• Dimensions (H×W×D): 133 mm × 26 mm × 122 mm (5.24 in × 1.02 in × 4.80 in)
• Weight: 0.18 kg (0.40 lbs)
• Operating Temperature: 0°C to +60°C (32°F to 140°F)
• Storage Temperature: -40°C to +85°C (-40°F to 185°F)
• Relative Humidity: 5%–95%, non‑condensing
• Certifications: CE, UL 508, CSA C22.2 No. 142, RoHS compliant

Key Features

1. Legacy System Integration: Connects modern RX3i PACSystems to existing Genius I/O networks, protecting investments in legacy GE automation hardware.
2. High‑Speed Communication: Configurable baud rates up to 153.5 Kbaud support fast, deterministic data exchange for real‑time control applications.
3. Large Data Capacity: Transfers up to 128 bytes of I/O data per device and 128 bytes of global data per scan, accommodating complex control strategies.
4. Multi‑Device Support: Manages up to 32 Genius bus devices, including I/O blocks, remote drops, VersaMax stations, and PLCs with Genius interfaces.
5. Flexible Cabling: Works with twisted pair, Twinax, or fiber optic cables to suit various installation environments and distance requirements.
6. Advanced Diagnostics: Automatic fault reporting from Genius devices to the controller, with LED indicators for quick status assessment and troubleshooting.
7. System Scalability: Up to 8 modules can be installed in a single RX3i system, enabling expansion of Genius bus networks across multiple racks.
8. Robust Electrical Protection: 2000VAC isolation and 1500V transient rejection safeguard the module and connected equipment from electrical noise and voltage spikes.
9. Plug‑and‑Play Installation: Slides into any RX3i I/O slot, powered directly from the backplane with no external power supply required.
10. Seamless Data Sharing: Exchanges global data with other Genius bus controllers and RX3i CPUs, supporting coordinated control across distributed systems.

Applications

• Legacy System Upgrades: Integrates new RX3i PLCs into existing Genius‑based control systems in manufacturing, process, and industrial infrastructure.
• Distributed I/O Architectures: Connects remote Genius I/O stations to central RX3i controllers in large facilities, reducing wiring complexity and cost.
• Factory Automation: Controls assembly lines, material handling systems, and packaging machinery with mixed RX3i and Genius I/O components.
• Process Control: Monitors and regulates pumps, valves, sensors, and actuators in water treatment, food & beverage, and chemical processing plants.
• Power and Energy: Manages I/O for power generation, distribution, and renewable energy systems using legacy Genius field devices.
• Building Automation: Integrates HVAC, lighting, and security system I/O in large commercial and industrial buildings with existing Genius networks.

Compatibility

• PLC Series: PACSystems RX3i (all CPU models: IC695CPU310, IC695CPU320, IC695CPU350, IC695CPU364, IC695CPU374).
• Legacy I/O: Genius I/O blocks (IC660 series), VersaMax I/O stations, Field Control I/O stations.
• Other Controllers: GE Series 90‑30, Series 6 PLCs (with Genius bus interfaces).
• Programming Software: Proficy Machine Edition (PME), Logic Developer‑PLC.