Бренд: Бентли Невада (Бейкер Хьюз), part of the 3500 Series TSI Machinery Protection System, full-height rack card, base part number: 138629-01; Official Name: Communication Gateway (commonly referred to as communication module in the industry). It collects all monitoring data within the 3500 rack and transmits it externally to DCS/PLC or host computer.
- Пояснение кода модели: 3500/92-A04-B01-C00
3500: 3500 Machinery Protection TSI System
/92: Communication Gateway Module (replaces legacy 3500/90; compared with 3500/91M, it supports custom Modbus register configuration)
A04: Segment A = Serial Submodule Option, 04 = RS485 Modbus RTU Interface
B01: Segment B = Certification Option, 01 = With CSA NRTL/C Safety Certification
C00: Segment C = Additional Option, 00 = No extra options
Key Distinctions
3500/91М: EGD protocol gateway, focused on Ethernet broadcast
3500/92: Supports custom Modbus register mapping, the most widely used TSI external communication card for projects
3500/92-A04: RS485 serial port only; A01 = RS232; A02 = RS422
- Основные технические характеристики
| Элемент | Спецификация |
| Установка | Full-height card for 3500 стойка, installed in the right-hand rack slot; hot-swappable (remove interlock before operation) |
| On-board Ethernet Port | RJ45, 10БЕЙС-Т (10М Ethernet), TCP/IP, Modbus/TCP, BNC host protocol (for configuration software communication) |
| Serial Port (A04) | RS485, Модбус РТУ, baud rate adjustable from 1200~38400 |
| Поддерживаемые протоколы | Модбус РТУ (сериал), Modbus/TCP, Bently Nevada proprietary protocol (Конфигурация стойки, System1) |
| Data Acquisition | Reads data of all cards via high-speed backplane bus of rack: вибрация, gap, axial displacement, скорость, температура, alarm status, events, 1X/2X/Smax, и т. д.. |
| Data Refresh | Full rack data refresh ≤1s |
| Потребляемая мощность | Typical 5.0~5.6W, powered by rack backplane |
| Рабочая температура | -30℃ ~ +65 ℃ (cabinet environment); Температура хранения: -40~+85℃ |
| Влажность | 95% неконденсирующийся |
| Status Indicators | ХОРОШО (module healthy); TX/RX (backplane rack communication); Ethernet/serial port transmit & receive indicators |
| Key Feature | Customizable Modbus register map. Users can freely select measurement points to upload to DCS without fixed address mapping (наследие 3500/90 does not support this function) |
III. Основные функции
- Rack data aggregation and forwarding: Collect real-time values, alarm status and module fault information of all monitoring cards (вибрация, displacement, температура, и т. д.) in the rack and output externally.
- Dual communication interfaces: RJ45 Ethernet + RS485 serial port can work simultaneously. Ethernet is used for PC configuration / System1; RS485 Modbus RTU connects to DCS.
- Flexible Modbus register configuration: Custom register allocation, select measurement points, set range scaling to adapt to DCS address planning, support uploading alarm bits, channel status and rack trip signals.
- Event & timestamp upload: Alarm trigger and card fault come with timestamps for unit event recording on host computer.
- Module self-diagnosis: Backplane communication fault, Ethernet/serial link fault, card self-check abnormality. OK indicator triggers alarm and writes information into rack event log.
- Типичные сценарии применения

16-канальный релейный модуль Bently Nevada 3500/33-A01-B00
TSI protection systems for steam turbines, компрессоры, fans and large pumps; applied in petrochemical, thermal power and coal chemical industries.
Цель: Serve as the data interface between TSI system and DCS, transmit shaft vibration, axial displacement, differential expansion, rotating speed, temperature and other process & protection measurement points to DCS graphics and history database.
Примечание: 3500/92 only transmits data and does NOT participate in protection trip logic. Hardwired trip contacts rely on 3500/33 relay card.
- Установка & Рекомендации по настройке
- Rack Slot: Right-hand slot of RIM. Single or multiple 92 gateways can be configured in one rack. Communicate via backplane; verify rack version compatibility before installation.
- Спецификация проводки
Ethernet: Shielded twisted pair cable, industrial switch, isolated independent network. Do not mix with DCS control network.
RS485 Modbus: Shielded twisted pair cable, match terminal resistor at bus end, single-point grounding to reduce interference.
- Configuration Procedure
Connect rack via Rack Configuration software;
Входить 3500/92 модуль, enable Modbus, configure serial parameters (адрес, скорость передачи данных, паритет);
Open Modbus register mapping tool, select measurement points, set range scaling and generate custom register table;
Download configuration to rack; test register reading with Modbus simulator, verify values and alarm bits.
- ввод в эксплуатацию: Confirm OK indicator steady on, TX/RX lights blink for backplane communication; then test Modbus polling on DCS side.
- Common Troubleshooting Checklist
- OK indicator off / flashing: Hardware fault of card, abnormal rack backplane communication. Re-seat the card and inspect RIM module.
- Ethernet connection failure: Поврежденный кабель, mismatched IP subnet, firewall interception. Check PC IP and 3500/92 port IP.
- DCS cannot read RS485 Modbus data: Mismatched Modbus slave address, скорость передачи данных, parity check; terminal resistor not enabled; multi-point grounding of bus; register map not downloaded.
- Value deviation: Incorrect range scaling parameters during configuration.
- No data for partial measurement points: Corresponding channel measurement points are not added to register mapping table.
VII. Сравнение серий & Выбор модели
| Модель | Интерфейс | Modbus Register | Сертификация |
| 3500/92-A04-B01-C00 | RJ45+RS485 | Настраиваемый | CSA Certified |
| 3500/92-A04-B00-C00 | RJ45+RS485 | Настраиваемый | No CSA Certification |
| 3500/92-A01-B01-C00 | RJ45+RS232 | Настраиваемый | CSA Certified |
| 3500/91М | RJ45 | Fixed register, EGD protocol | CSA Certified |
| 3500/90 | RJ45+Serial | Fixed register, non-customizable | Legacy discontinued model |
Контактор,автоматический выключатель,датчик,Кодер,ПЛК,Конвертер


