Description
Overview
The Bently Nevada 3500/91-01-02-00 is a fiber-optic Ethernet Global Data (EGD) communication gateway designed for integration within the 3500 Machinery Protection System. This module provides a high-reliability digital interface between the 3500 rack and external automation platforms such as GE Mark VI/VIe turbine control systems, DCS, and SCADA networks.
This configuration is engineered for extended-distance communication using fiber-optic media, improving immunity to electromagnetic interference in harsh industrial environments. It enables continuous exchange of machinery protection data, alarm states, and system diagnostics in real time.
The module occupies one front slot and one rear I/O slot within the 3500 rack architecture.
Core Functions
- Real-time Ethernet Global Data (EGD) communication
- Fiber-optic industrial Ethernet data transmission
- Continuous monitoring of rack and module status
- Transfer of alarm, setpoint, and channel measurement data
- Integration with GE turbine control platforms
- Support for remote reset and alarm control commands
- High electromagnetic noise immunity for harsh environments
- Hot-swappable rack module design
Technical Specifications
| ParameterSpecification |
|
| Model |
3500/91-01-02-00 |
| Product Type |
EGD Communication Gateway Module |
| System Platform |
Bently Nevada 3500 Series |
| Communication Protocol |
Ethernet Global Data (EGD) v2.01 |
| Transport Layer |
UDP/IP |
| Ethernet Standard |
IEEE 802.3u |
| Network Medium |
Fiber optic (100BASE-FX) |
| Connector Type |
MT-RJ fiber interface |
| Data Transmission Type |
Real-time producer/consumer model |
| Power Consumption |
7.4 W typical |
| Power Source |
3500 rack backplane |
Data Communication Structure
Producer Data
- Channel measurement values
- Rack and module status signals
- Alarm and warning states
- System health diagnostics
- Configuration and setpoint data
Consumer Commands
- Group Reset
- Alarm Inhibit functions
- Trip Multiply control
- Special Alarm Inhibit commands
Physical Characteristics
| ItemSpecification |
|
| Dimensions |
241.3 × 24.4 × 241.8 mm |
| Weight |
0.79 kg |
| Installation Requirement |
1 front slot + 1 rear I/O slot |
| Form Factor |
Full-height 3500 rack module |
Environmental Specifications
| ParameterValue |
|
| Operating Temperature |
-30°C to +65°C |
| Storage Temperature |
-40°C to +85°C |
| Relative Humidity |
Up to 95% non-condensing |
| EMC Compliance |
EN 61000-6-2 / EN 61000-6-4 |
Key Features
- Fiber-optic 100BASE-FX Ethernet communication interface
- Extended-distance transmission capability
- High immunity to electrical noise and interference
- Real-time EGD data exchange architecture
- Hot-swappable design for maintenance flexibility
- Compatible with GE Mark VI/VIe control systems
- Reliable industrial-grade communication performance
Application Areas
- Gas turbine control and monitoring systems
- Steam turbine protection platforms
- Compressor station monitoring
- Offshore oil and gas machinery systems
- Pipeline pumping and transport systems
- Power generation plant integration
- Industrial SCADA and DCS communication networks
FAQ
What is the advantage of the fiber-optic version of the 3500/91?
The fiber-optic interface provides improved signal integrity and allows long-distance communication with strong resistance to electromagnetic interference.
Can this module work with GE Mark VIe systems?
Yes. It is designed specifically for EGD communication environments commonly used in GE turbine control systems.
Does the module support remote control commands?
Yes. It supports consumer-side commands such as reset, trip multiply, and alarm inhibit functions.
