Overview
The Bently Nevada 161204-01, also cataloged as the 3500/91 EGD Gateway Module, operates as a dedicated communication hardware component for Ethernet Global Data exchange within the Bently Nevada 3500 Machinery Protection System.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 161204-01 |
| Brand | Bently Nevada (Baker Hughes) |
| Origin | USA |
| Product Series | 3500/91 EGD Gateway Module |
| Product Type | Ethernet Communication Gateway Modules |
| Communication Protocol | EGD Version 2.01, Ethernet UDP/IP |
| Ethernet Standard | IEEE 802.3 10BASE-T and IEEE 802.3u 100BASE-TX |
| Network Speed | 10 Mbps and 100 Mbps |
| Connector Interface | RJ-45 for copper Ethernet, MT-RJ for 100BASE-FX fiber connection |
| Data Exchange Function | Producer: Rack, Module, Channel Status, Float Data Values; Consumer: Group Reset, Trip Multiply, Alarm Inhibit |
| Power Consumption | 7.4 Watts typical |
| Weight | 0.79 kg |
| Dimensions | 241.3 mm x 24.4 mm x 241.8 mm |
| Operating Temp | -30 deg C to +65 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Relative Humidity | Up to 95%, non-condensing |
| Front Panel Indicators | OK LED, TX/RX Communication LED |
Rotor Dynamics Data Communication and Signal Integrity
The Bently Nevada 3500/91 EGD Gateway Module transfers machinery monitoring values from the 3500 rack to external control platforms through Ethernet communication channels. Therefore, the module maintains consistent transmission of vibration, status, and alarm information generated by monitoring modules.
The 3500 platform processes signals from eddy-current probes, velocity sensors, and other machinery monitoring devices. Additionally, the gateway architecture supports data availability for rotor dynamics analysis by transferring processed channel values without modifying the original measurement calculations.
The module supports communication functions associated with machinery protection systems, including status transmission and control commands. Furthermore, the Ethernet interface design reduces dependence on point-to-point wiring between the protection rack and supervisory systems.
Frequently Asked Questions
Q: What communication protocol does the 161204-01 support?
A: The 161204-01 supports EGD Version 2.01 communication over Ethernet UDP/IP networks.
Q: Can the 161204-01 connect to standard Ethernet infrastructure?
A: Yes. The module supports IEEE 802.3 10BASE-T and IEEE 802.3u 100BASE-TX Ethernet standards through compatible network interfaces.
Q: What data does the gateway module exchange with external systems?
A: The module transfers rack data, module status, channel status, and float-format measurement values. It also receives commands such as Group Reset, Trip Multiply, and Alarm Inhibit.
Field Installation Guidelines
Install the 161204-01 module in the designated slot position of the Bently Nevada 3500 rack according to the rack configuration requirements.
Verify that the rack backplane connection is fully seated before applying power. Ensure Ethernet cables maintain proper separation from high-voltage power conductors and high-current switching circuits to reduce electrical interference.
Use shielded communication cabling where required by the plant network design. Connect cable shields according to the site grounding practice and avoid multiple uncontrolled grounding points.
Before commissioning, confirm Ethernet network addressing, EGD configuration parameters, and communication status indicators. Check the OK LED and TX/RX LEDs to verify module operation and network activity.
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