The Bently Nevada 3500/22M (Part No. 161580-01) is an advanced Transient Data Interface (TDI) Module used within the Bently Nevada 3500 Machinery Protection System. It serves as both the Rack Interface Module (RIM) and a data communication gateway, providing high-speed transfer of both steady-state and transient machinery data to the System 1® Condition Monitoring software.

This module enables powerful event diagnostics by capturing high-resolution data during critical events like startups, shutdowns, and machine trips. As the enhanced version of the 3500/22, the 22M supports Ethernet communications, advanced configuration management, and improved diagnostic tools, all from Slot 1 of the rack.

Its combination of real-time data acquisition, support for redundant configurations, and hot-swappable design makes the 3500/22M ideal for high-reliability and mission-critical industrial environments.

Technical Specifications

Applications

The 3500/22M TDI Module is widely used in advanced machinery monitoring systems, particularly in industries requiring high availability and condition-based maintenance strategies:

• Turbomachinery (Gas and Steam Turbines)

  For capturing dynamic machine behavior during operation.

• Compressors and Expanders

  Real-time monitoring during pressure surges and load changes.

• Industrial Generators and Motors

  For vibration diagnostics and alignment checks.

• Critical Pumps and Blowers

  Enables early detection of faults like cavitation or imbalance.

• Refineries and Petrochemical Facilities

  For asset protection in hazardous or continuous operations.

• Power Generation Plants

  Seamless integration with DCS and plant automation systems.

Product Advantages

• All-in-One Communication Solution

  Combines configuration control and transient data interface in one module, saving space and simplifying setup.

• System 1® Integration

  Provides reliable data transfer to condition monitoring software for detailed diagnostics.

• Enhanced Memory and Performance

  Compared to 3500/22, the 22M offers improved memory and processor capacity for faster data handling.

• Supports Redundant Operation

  Dual TDIs ensure fault tolerance and continuous operation in critical systems.

• Modbus TCP/IP and Serial Support

  Flexible communication options for integration with control systems and SCADA networks.

• User-Friendly Diagnostics

  Onboard LED indicators allow quick status verification and troubleshooting.

• Hot-Swappable Design

  Field serviceable without shutting down the entire rack.

Frequently Asked Questions (FAQ)

1. What is the role of the 3500/22M module in the 3500 rack system?

   It serves as the rack’s communication interface and transient data handler.

2. Can it be installed in any rack slot?

   No, it must be installed in Slot 1 of the rack.

3. Is it compatible with System 1® software?

   Yes, it is fully compatible and optimized for System 1® integration.

4. What’s the difference between 3500/22 and 3500/22M?

   The 22M version has improved processing power and memory for better transient data performance.

5. Is the module redundant-ready?

   Yes, it supports dual installation for redundancy and failover.

6. Does the TDI replace the older Rack Interface Module (RIM)?

   Yes, it combines RIM and transient data functionality.

7. What types of communication ports are included?

   It includes Ethernet, RS-232, and RS-422/485 ports.

8. Can it be removed while the system is powered?

   Yes, it is hot-swappable for maintenance without system shutdown.

9. What does it monitor during machine startup or shutdown?

   It captures high-resolution transient vibration and position data.

10. Does it have LED indicators for diagnostics?

    Yes, it has multiple LEDs showing communication and status conditions.