Description
Bently Nevada 3500/20-01-02-01
Technical Specifications:
- Power Consumption: 4.75 watts typical
- Front Panel Communication: RS-232 serial, maximum 38.4K baud rate
- I/O Module Communication: RS-232/RS-422 serial, maximum 38.4K baud rate; internal modem communication at 14.4K baud
- RS-232 Maximum Cable Length: 30 meters (100 feet)
- RS-422 Maximum Cable Length: 1200 meters (4000 feet)
- Operating Temperature: -30°C to +65°C (-22°F to +150°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 95% non-condensing
- Dimensions: Approximately 114 × 89 × 38 mm
- Weight: Approximately 0.23 kg (module only)
- Protection Class: IP20
- Power Supply: 24V DC from rack backplane
Functional Features:
- Provides the primary configuration and data retrieval interface for the entire 3500 rack
- Supports connection to Bently Nevada communication processors (TDXnet, TDIX, DDIX) via RS-232/RS-422
- Front panel LEDs indicate module status (OK), communication activity (TX/RX), trip multiplier state (TM), and configuration validity
- OK relay output (SPDT, normally energized) indicates rack health to external systems
- Auto-baud rate detection for simplified communication setup
- Supports daisy-chain connection of multiple 3500 racks via RS-422
- 63 selectable rack addresses via address switches
Application Scenarios:
- Every 3500 rack installation requires one RIM for configuration and data access
- Systems connected to System1 condition monitoring software
- Multi-rack installations using daisy-chain RS-422 communication
- Remote monitoring via modem connection
- Integration with plant DCS/SCADA systems through communication processors
Performance Parameters:
- Communication baud rate: up to 38.4K (auto-baud capable)
- RS-232 maximum cable length: 30 meters
- RS-422 maximum cable length: 1200 meters
- Modem communication: up to 14.4K baud
- Power consumption: 4.75 watts typical
Material Composition:
- Industrial-grade electronic components on multi-layer PCB
- Metal module enclosure with conformal coating
- Gold-plated backplane edge connectors
Structural Features:
- Full-height module form factor
- Front panel with LED indicators and RS-232 configuration port
- Rear I/O module connector for RS-232/RS-422 communication processors
- Plug-in design for 3500 rack slot 1
Working Principle:
The RIM acts as the communication gateway between the 3500 rack’s internal backplane bus and external configuration/data acquisition systems. It reads and writes configuration data to all modules in the rack via the backplane, and translates this data into the Bently Nevada proprietary protocol for transmission over RS-232 or RS-422 to external hosts. The RIM also monitors the OK status of all rack modules and drives the OK relay accordingly.
Installation Requirements:
- Install in rack slot 1 (immediately to the right of the power supply modules)
- Connect the RS-232 configuration cable to the front panel port for local configuration
- Connect the appropriate I/O module (RS-232, RS-422, or modem) to the rear connector for remote communication
- Set the rack address using the address switches on the RIM (63 selectable addresses)
- Set the configuration key lock to RUN mode for normal operation or PROGRAM mode for configuration changes
