Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Bently Nevada 3500/20 Rack Interface Module (RIM), part number 125744-02 + 125760-01, is a critical component of the Bently Nevada 3500 Machinery Protection System, designed to provide a direct interface between the 3500 rack and external communication systems. It serves as the primary communication gateway for configuration, data transfer, and system health monitoring within the rack-based vibration and condition monitoring platform.
The 3500/20 RIM consolidates data from all modules within the rack, such as vibration monitors, temperature monitors, and relay modules, and makes this data available to external systems like the System 1 Condition Monitoring software, DCS (Distributed Control System), or PLC (Programmable Logic Controller).
This module is engineered with dual communication ports, supporting redundant configurations for maximum system reliability. It handles configuration uploads, alarm status reporting, system diagnostics, and event logs. Designed for industrial environments, the RIM uses advanced EMI shielding and is built to operate reliably under high temperature, vibration, and electrical noise conditions.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 3500/20 125744-02 + 125760-01 |
| Product Type | Rack Interface Module (RIM) |
| System Compatibility | Bently Nevada 3500 Series Machinery Protection System |
| Primary Function | Communication and interface between rack modules and external systems |
| Communication Protocols | Proprietary 3500 configuration interface, Modbus, and TDI-compatible data link |
| Inputs | Serial data from 3500 monitoring modules |
| Outputs | RS232, RS485, or Ethernet link for external communication |
| Power Supply | From 3500 rack backplane |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% to 95% non-condensing |
| Mounting Location | Left-most slot of the 3500 rack |
| Redundancy Support | Dual RIM configuration for fault-tolerant communication |
| Dimensions (H × W × D) | 241.3 x 24.4 x 241.8 mm |
| Weight | 0.91 kg |
| LED Indicators | Power, Module OK, TX/RX Communication, System Alarm |
| Compliance | CE, UL, CSA, RoHS |
| Material | Industrial-grade composite and aluminum front panel |
Product Applications
The Bently Nevada 3500/20 RIM is used across a wide range of rotating machinery monitoring systems, enabling seamless data exchange between the protection rack and external supervisory control systems. Common application areas include:
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Turbomachinery Protection Systems – Providing communication between turbine monitoring modules and DCS/SCADA systems.
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Compressor and Pump Systems – Enabling real-time monitoring data transfer to control and diagnostic systems.
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Generator Condition Monitoring – Facilitating vibration and temperature data sharing for predictive maintenance.
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Oil and Gas Refineries – Integration with plant-wide systems for centralized machine health management.
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Power Generation Facilities – Coordinating alarm and event data from turbines and auxiliary machines.
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Industrial Manufacturing Plants – Supporting continuous machine performance monitoring and safety control.
Product Advantages
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Centralized Communication Hub: Integrates data from all modules within the 3500 rack and provides unified output to external systems.
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Dual Redundant Capability: Supports primary and secondary RIM configurations for uninterrupted operation.
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Real-Time Monitoring: Enables continuous communication of vibration, speed, temperature, and alarm conditions.
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Comprehensive System Diagnostics: Monitors rack health and module communication status with visual LED indicators.
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High EMI Resistance: Designed with industrial-grade shielding to perform reliably in electrically noisy environments.
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Seamless Integration: Fully compatible with System 1, DCS, and other plant monitoring software platforms.
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Modular Design: Simplifies installation, replacement, and configuration without affecting other rack modules.
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Rugged Construction: Built for harsh industrial environments with extended temperature and humidity tolerance.
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Low Maintenance: Requires minimal service while providing long-term stable operation.
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Trusted Reliability: Proven performance in critical applications across energy, petrochemical, and manufacturing industries.
FAQ
1. What is the main function of the 3500/20 Rack Interface Module?
The RIM provides communication between the 3500 rack and external systems such as DCS or System 1, transferring configuration and monitoring data.
2. Where is the RIM installed in the 3500 rack?
It is installed in the left-most slot of the rack and interfaces with the backplane for communication and power.
3. Does the RIM support redundant operation?
Yes, it can operate in dual RIM configurations, ensuring communication continuity if one module fails.
4. What types of communication interfaces are available?
It supports RS232, RS485, and Ethernet communication interfaces for flexible system integration.
5. Can the RIM transmit alarm and event data to external systems?
Yes, it transmits alarm, event, and system status information in real time to control and monitoring software.
6. How does the RIM handle configuration uploads and downloads?
Configuration data can be uploaded and downloaded via the RIM using Bently Nevada configuration software.
7. What happens if the RIM fails during operation?
If redundancy is configured, the secondary RIM automatically assumes communication responsibilities without system downtime.
8. Is the module hot-swappable?
Yes, the RIM is hot-swappable, allowing replacement without powering down the rack.
9. How does the RIM communicate with System 1 software?
It uses the Bently Nevada proprietary communication protocol through Ethernet or serial links to send vibration and condition data to System 1.
10. What indicators are provided for status monitoring?
The front panel includes LED indicators for Power, Module OK, TX/RX communication, and System Alarm status.
Related Models (Same Series)
| Model | Description |
|---|---|
| 3500/22M | Transient Data Interface Module for detailed event recording |
| 3500/32M | 4-Channel Relay Module for alarm and shutdown control |
| 3500/42M | Vibration Monitor for shaft and bearing measurement |
| 3500/50M | Tachometer Module for speed and phase monitoring |
| 3500/60 | Temperature Monitor for thermocouple and RTD inputs |
| 3500/93 | System Power Supply Module for primary and redundant configurations |
Popular Bently Nevada Models
| Model | Description |
|---|---|
| 3300 XL 8mm Proximity Probe | Standard probe for vibration and position measurement |
| 3300 XL Proximitor Sensor | Signal conditioning module for 3300 series probes |
| 3500/15 Power Supply | Provides power for 3500 monitoring racks |
| 3500/40M Proximitor Monitor | Measures vibration and axial displacement |
| 3500/45 Position Monitor | Monitors shaft position and keyphasor signals |
| 1900/65A General Machinery Monitor | Compact solution for general rotating machinery applications |
