3500/91-01-01-01 | Bently Nevada 3500 Series EGD Communication Gateway Module

Product Overview

The Bently Nevada 3500/91-01-01-01 functions as a specialized high-speed communication bridge that exports critical machinery data using the Ethernet Global Data (EGD) protocol. This module integrates the 3500 Machinery Protection System directly into GE control networks and other EGD-compatible systems. By consolidating vibration, position, and status data into deterministic digital packets, it provides plant operators with real-time diagnostic capabilities. We provide this unit in 100% brand new, original condition, ensuring long-term hardware availability for systems where the manufacturer has issued a discontinuance notice.

Part Number Breakdown: 3500/91-01-01-01

• 3500/91: Ethernet Global Data (EGD) Communication Gateway Module

• -01: Single Ethernet / Single Serial I/O Module

• -01: Full-height Internal Termination I/O Module

• -01: CSA/NRTL/C (Class 1, Division 2) Agency Approvals

Technical Specifications

• Brand: Bently Nevada (Baker Hughes)

• Protocol Support: Ethernet Global Data (EGD)

• Power Consumption: 7.4 Watts

• Category: PLC Module / Rack-mount Communication Gateway

• I/O Interface: Ethernet TCP/IP and Serial RS232/RS422/RS485

• Shipping Weight: 6.82 kg (Approx. 15.03 lbs including protective industrial packaging)

• Condition: Brand New, Factory Original

• Warranty: 1 Year

Engineering Advantages

The 3500/91-01-01-01 resolves complex integration challenges through high-speed digital architecture:

• Deterministic Data Broadcast: The EGD protocol allows this module to push data pages at fixed intervals. This ensures your DCS receives machinery protection updates without the overhead or latency typical of request-response protocols.

• Hazardous Area Compliance: The "-01" approval suffix denotes CSA/NRTL/C certification. This allows engineers to safely install the module in Class 1, Division 2 environments common in petrochemical and gas processing facilities.

• Reduced Wiring Complexity: A single Ethernet cable replaces dozens of analog 4-20mA loops. This saves significant cabinet space and reduces potential points of failure within the termination assembly.

• Legacy System Support: As a discontinued hardware revision, our brand-new stock allows plants to maintain existing 3500 rack configurations without undergoing expensive and time-consuming system-wide upgrades.

FAQs

• Can this module coexist with a 3500/92 Modbus Gateway in the same rack?

  Yes. The 3500 rack backplane supports multiple communication gateways. You can install the 3500/91 specifically for EGD-based control while using a 3500/92 for separate Modbus-based plant historian access.

• How does this module handle power loss?

  The module stores its configuration in non-volatile memory. Upon restoration of rack power, the 3500/91 immediately resumes its EGD broadcast cycles without requiring manual technician intervention.

• What is the significance of the "Discontinued by Manufacturer" status?

  While the manufacturer has ceased active production of this specific revision, we provide original, brand-new surplus units. This enables you to replace failed modules with an exact match, avoiding the need for firmware re-mapping associated with newer gateway versions.

• Does this unit include the rear I/O module?

  Yes. Our 3500/91-01-01-01 kit includes both the front-facing monitor module and the corresponding rear I/O termination module required for physical Ethernet and Serial connectivity.