Description
Bently Nevada 3500/91 (161204‑01) EGD Gateway Main Module
Product Overview
161204‑01 is the main CPU board of 3500/91 EGD (Ethernet Global Data) Communication Gateway for the 3500 machinery‑protection systemBaker Hugh…. It is dedicated for high‑speed real‑time data exchange between the 3500 rack and GE Mark VIe / EGD‑compatible controllers via UDP‑based EGD protocol. This main board cannot work standalone; must be paired with a daughter I/O module (161216‑01 copper Ethernet or 161216‑02 fiber‑optic Ethernet) to complete the full gateway assembly.
Important distinction:
- 3500/91‑01‑01 = 161204‑01 + 161216‑01: Copper RJ45 EGD gateway (most common)
- 3500/91‑01‑02 = 161204‑01 + 161216‑02: Fiber MT‑RJ EGD gateway
- 3500/92: Modbus‑TCP / Modbus‑RTU gateway (different product, for DCS/SCADA, not EGD)
161204-01
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 161204‑01 (3500/91 Main Gateway Board) |
| Matching Daughter I/O | 161216‑01 (10/100BASE‑TX RJ45); 161216‑02 (100BASE‑FX Fiber MT‑RJ) |
| Primary Protocol | EGD v2.01 (Ethernet Global Data over UDP/IP)Baker Hugh… |
| Function | Producer / Consumer EGD exchanges |
| Power Consumption | 7.4 W typical, powered by 3500 rack backplane bus |
| Operating Temperature | ‑30 ℃ ~ +65 ℃ (rack); Storage:‑40 ℃ ~ +85 ℃ |
| Humidity | 5‑95 % RH, non‑condensing |
| Form Factor | Single‑slot plug‑in for 3500/05 rack |
| Weight | Approx. 0.78 kg |
| Front‑panel LED | OK, TX/RX status indicators |
| Configuration | 3500 Rack Configuration Software; define EGD producer/consumer data tables |
| Hot‑swap | Supported, follow official service procedure |
Key Features
- EGD high‑speed controller‑oriented communication: Optimized for real‑time transmission of monitor values, alarm status, rack health status to GE Mark VIe and other EGD‑capable controllers; low‑latency for turbine/compressor control‑system integration.
- Producer‑Consumer data model:
- Producer: Publish 3500 rack channel values, alarm status, module health to external controller.
- Consumer: Accept external controller commands: group reset, alarm inhibit, trip multiply commands back into 3500 rackBaker Hugh….
- Daughter‑card modular design: Main board 161204‑01 is universal; swap 161216‑01(copper) / 161216‑02(fiber) for different plant network topologies.
- Rack‑wide data access: Reads all monitor module data across the 3500 backplane; supports mixed rotating‑machinery and reciprocating‑compressor monitors (3500/42M, 3500/70M, 3500/72M etc).
- No Modbus support: 3500/91 only runs EGD. For Modbus‑TCP / Modbus‑RTU to DCS/SCADA select 3500/92 instead.
- Hot‑swap capable: Online replacement without powering down the 3500 rack.
3500/91 vs 3500/92 comparison
| Model | Part Set | Protocol | Typical Usage |
|---|---|---|---|
| 3500/91 | 161204‑01+161216‑xx | EGD UDP | Interface to GE Mark VIe turbine/compressor controller |
| 3500/92 | complete assembled unit | Modbus‑TCP / Modbus‑RTU | Interface to DCS, SCADA, HMI, System 1 host |
161204-01
Typical Applications & Scenarios
Main Applications
- Real‑time bidirectional communication link between 3500 machinery‑protection rack and GE Mark VIe turbine / compressor controller.
- Transmit vibration, temperature, position values, Alert/Danger alarms, rack‑module health status to the controller.
- Receive controller commands for alarm inhibit, group reset, trip multiply into the 3500 system.
Industry Scenarios
- Power generation: steam‑turbine, gas‑turbine generator sets with Mark VIe control system.
- Oil & gas: refinery centrifugal compressors, pipeline compressors controlled by Mark VIe.
Supporting / Matching Components
- Mandatory daughter I/O module:
- Copper: 161216‑01 (RJ45 10/100BASE‑TX)
- Fiber: 161216‑02 (MT‑RJ 100BASE‑FX)
- Host rack: 3500/05 instrument rack
- Rack power supply: 3500/15 series power‑supply modules
- Configuration software: Bently Nevada 3500 Rack Configuration Software (setup EGD producer/consumer tables)
- Peer controller: GE Mark VIe or other EGD‑compliant controller
Related & Reference Part Numbers
- 161216‑01: Copper Ethernet daughter card for 3500/91
- 161216‑02: Fiber‑optic Ethernet daughter card for 3500/91
- 3500/91‑01‑01: Complete assembly (161204‑01 +161216‑01 copper)
- 3500/91‑01‑02: Complete assembly (161204‑01 +161216‑02 fiber)
- 3500/92: Modbus‑TCP / RTU communication gateway for DCS/SCADA
Installation & Maintenance Notes
- 161204‑01 main gateway board must be fitted with matching 161216‑xx daughter I/O module before insertion into rack slot; cannot operate without daughter‑card.
- Configure EGD producer and consumer exchange tables inside 3500 configuration software, match IP addresses and exchange IDs with Mark VIe controller.
- Separate control‑system Ethernet from plant office network; follow control‑system network security best‑practice.
- After installation verify OK LED status, EGD link status and data consistency between rack and peer controller.
- Hot‑swap replacement strictly follow Bently Nevada official service manual.
Start Chat
