Description
Overview
The Bently Nevada 3500/91-01-01-00 is an Ethernet Global Data (EGD) communication module engineered for the 3500 Machinery Protection System. It establishes a high-speed Ethernet interface between the 3500 rack and external industrial control platforms, enabling deterministic data transfer for turbine control, process automation, and machinery monitoring applications.
Designed for integration with GE control environments and other EGD-compatible systems, the module exchanges rack measurements, alarm states, module diagnostics, and operational parameters using producer/consumer communication architecture over UDP/IP Ethernet networks.
The gateway supports real-time industrial communication where fast data acquisition and low-latency transmission are critical for rotating equipment protection systems.
Key Functions
- Real-time EGD data communication over Ethernet
- Rack-wide data acquisition from 3500 monitoring systems
- Producer/consumer data exchange architecture
- Integration with GE Mark VIe and compatible controllers
- Continuous transmission of dynamic and static machinery data
- Remote alarm handling and rack command support
- Dual-speed Ethernet network compatibility
- Industrial-grade environmental and EMC compliance
Technical Specifications
| ParameterSpecification |
|
| Model |
3500/91-01-01-00 |
| Product Type |
EGD Communication Gateway Module |
| System Platform |
Bently Nevada 3500 Series |
| Communication Protocol |
EGD v2.01 |
| Ethernet Protocol |
UDP/IP |
| Ethernet Standards |
IEEE 802.3, IEEE 802.3u |
| Ethernet Speed |
10 Mbps / 100 Mbps |
| Network Interfaces |
10BASE-T, 100BASE-TX, optional 100BASE-FX |
| Power Consumption |
7.4 W typical |
| Rack Power Source |
Supplied by 3500 rack |
| Module Installation |
Front module with rear I/O module |
Network Interfaces
| Interface TypeConnector |
|
| Copper Ethernet |
RJ-45 |
| Fiber Ethernet (optional) |
MT-RJ |
The optional fiber interface supports 100BASE-FX communication for installations requiring extended distance or enhanced electromagnetic noise immunity.
Data Exchange Capabilities
The module supports both producer and consumer communication functions within EGD-based control architectures.
Producer Data
- Rack operational status
- Module health information
- Channel condition monitoring
- Floating-point process variables
- Alarm setpoints
- Dynamic machinery measurements
Consumer Commands
- Group Reset
- Group Trip Multiply
- Group Alarm Inhibit
- Group Special Alarm Inhibit
Physical Specifications
| ItemValue |
|
| Dimensions |
241.3 × 24.4 × 241.8 mm |
| Weight |
0.79 kg |
| Front Slot Requirement |
1 full-height slot |
| Rear Slot Requirement |
1 full-height I/O slot |
Environmental Specifications
| ParameterSpecification |
|
| Operating Temperature |
-30°C to +65°C |
| Storage Temperature |
-40°C to +85°C |
| Relative Humidity |
95% non-condensing |
| EMC Compliance |
EN 61000-6-2 / EN 61000-6-4 |
Status Indicators
Integrated front-panel LEDs provide rapid diagnostics and communication monitoring.
| IndicatorDescription |
|
| OK |
Module operating status |
| TX/RX |
Ethernet activity indication |
Compliance and Certifications
| StandardCompliance |
|
| Electrical Safety |
EN 61010-1 |
| EMC |
EN 61000 Series |
| Marine Certifications |
ABS, DNV-GL |
| Hazardous Area Support |
CSA, ATEX, IECEx compatible systems |
Typical Applications
The Bently Nevada 3500/91-01-01-00 gateway module is commonly installed in critical machinery protection systems including:
- Gas turbine monitoring
- Steam turbine protection
- Pipeline compressor stations
- LNG processing facilities
- Refinery rotating equipment
- Offshore production systems
- Power generation plants
- High-speed compressor trains
Comparison: 3500/91 vs 3500/90
| Feature3500/913500/90 |
|
|
| Primary Communication |
EGD Ethernet |
Modbus TCP / Serial |
| Communication Architecture |
Producer/Consumer |
Polling-based |
| Typical Integration |
GE Mark VIe |
PLC / DCS / SCADA |
| Network Type |
Real-time Ethernet |
General industrial communication |
| Response Performance |
High-speed deterministic |
Standard monitoring communication |
FAQ
What is the main purpose of the 3500/91-01-01-00 module?
The module provides high-speed Ethernet communication between a 3500 monitoring rack and external control systems using the EGD protocol.
Does the module support fiber Ethernet connections?
Yes. Certain configurations support optional 100BASE-FX fiber-optic communication through an MT-RJ interface.
Which controllers are compatible with this gateway?
The module is widely integrated with GE Mark VIe turbine controllers and other EGD-compatible automation platforms.
Can the gateway receive external commands?
Yes. The module supports consumer functions including reset commands and alarm inhibit controls.
