Description
The Bently Nevada 3500/92 (main card part number 136180-01) is a high-speed Communication Gateway Module engineered for the Bently Nevada 3500 Series Machinery Protection System.
It provides extensive serial and Ethernet communication capabilities to export all 3500 rack-monitored values, alarm statuses, and channel diagnostics directly to plant Distributed Control Systems (DCS), Programmable Logic Controllers (PLCs), SCADA networks, and Bently Nevada System 1 / Rack Configuration software packages.
Technical Specifications
| Parameter | Specification |
| Manufacturer | Bently Nevada (Baker Hughes / GE) |
| System Platform | 3500 Series Machinery Protection System |
| Model / Part Number | 3500/92 / 136180-01 (Main Processing Board) |
| Device Type | Communication Gateway / Modbus Interface Module |
| Supported Protocols | Modbus RTU / ASCII (Serial), Modbus/TCP (Ethernet), Proprietary Bently Nevada Protocol |
| Network Interfaces | 10/100Base-T Ethernet (RJ45), RS-232, RS-422, RS-485 (via rear I/O module) |
| Slot Compatibility | Standard 3500 Rack Slot (Full-height slot, any slot except Slot 1) |
| Power Consumption | 5.6 Watts nominal |
| Operating Temperature | -30°C to +65°C (-22°F to +149°F) |
Core Features & Operating Capabilities
- High-Density Data Export: Transmits real-time overall vibration levels, thrust position, gap voltage, shaft speed, and channel alarm states to host control platforms without burdening primary protection loops.
- Configurable Modbus Register Utility: Includes a customizable Modbus register mapping tool within 3500 Rack Configuration Software, enabling custom register table layouts to match DCS/PLC requirements.
- Multi-Master Communication: Supports simultaneous Ethernet communication with 3500 Rack Configuration / System 1 software alongside active Modbus/TCP or serial Modbus polling to plant automation hosts.
- Backward Compatibility: Replaces legacy 3500/90 gateway modules while enhancing data throughput, register flexibility, and protocol support.
- Onboard LED Diagnostics: Front-panel LEDs (OK and TX/RX) provide immediate visual feedback regarding module hardware status and active communications traffic.
Associated 3500/92 Rear I/O Modules & Cabling
- 136188-01 — Ethernet (10Base-T / 100Base-TX) & RS-232 Modbus I/O Module.
- 136188-02 — Ethernet (10Base-T / 100Base-TX) & RS-485 Modbus I/O Module.
- 125736-01 — Modbus RS-232 / RS-422 Serial I/O Module.
- 133323-01 — Modbus RS-485 Serial I/O Module.
- 3500/22M (138607-01) — Transient Data Interface (TDI) Module.
