3500/20-01-02-00 Bently Nevada RIM RS232/RS422 I/O Module

3500/20-01-02-00 | Bently Nevada Rack Interface Module

The 3500/20-01-02-00 is the primary communication gateway for the Bently Nevada™ 3500 monitoring system. This Rack Interface Module (RIM) resides in slot 1 and enables configuration, data acquisition, and host software integration. It does not affect critical monitoring paths, ensuring high system availability.

Product Overview

• Type: Standard RIM (01) with RS232/RS422 I/O (02).
• Agency Approval: None (00).
• Position: Slot 1, next to power supplies.
• Compatibility: TDXnet, TDIX, DDIX, and 3500 Host Software.
• TMR Support: Optional TMR version for channel comparison.
• Protocol: Bently Nevada proprietary (auto-baud capable).

Key Technical Specifications

Environmental & Mechanical

• Wide temperature range: -30°C to +65°C for reliable operation.
• Storage: -40°C to +85°C.
• Humidity tolerance: 95% non-condensing.
• Rack slots: 1 full-height front slot (RIM) + 1 rear slot (I/O).

Diagnostics & Indicators

• OK LED – confirms proper RIM operation.
• TX/RX LED – active communication with rack modules.
• TM LED – indicates Trip Multiply mode.
• CONFIG OK LED – valid rack configuration.
• I/O Module OK Relay – normally energized; selectable OPEN/CLOSED for fault annunciation.
• Rack Reset Button – clears latched alarms and Timed OK Channel Defeat.

Installation & Commissioning

• Slot 1 mounting – mandatory location next to power supplies.
• Address switch – set 1 of 63 possible rack addresses.
• RS232/RS422 switch – select interface type for host software.
• Cable lengths: RS232 up to 30 m; RS422 up to 1200 m.
• Modem cable: 2.1 m max (to phone jack).
• Data Manager I/O: 3 m cable max.

Compatibility & Integration

• Supports TDXnet, TDIX, and DDIX processors.
• Works with Bently Nevada Host Software for configuration and data collection.
• For TMR systems, use the TMR RIM version for channel voting and comparison.
• Modem I/O supports Hayes AT commands (14.4 kbaud).
• Data Manager I/O provides static/dynamic data to TDIs and DDIX.

Certifications & Warranty

• Agency Approval: None (00).
• Warranty: 12 months from shipment.
• Quality: Tested for industrial surplus/refurbished reliability.
• Shipping: FedEx, UPS, DHL (global).

Typical Applications

• Machinery condition monitoring in oil & gas, power generation, and heavy industry.
• Interface to SCADA and DCS systems via RS232/RS422.
• Data aggregation for predictive maintenance and diagnostics.

Diagnostic Capabilities

• Channel comparison (TMR) – detects deviations > configured threshold.
• System event logging – flags monitor errors and rack faults.
• OK relay indicates normal or fault condition for external monitoring.

Frequently Asked Questions

• What is the default protocol? Bently Nevada proprietary (auto-baud).
• Can I use a standard modem? Yes, with Hayes AT-compatible modem I/O.
• Is the RIM required for each rack? Yes, one per rack.
• How do I reset alarms? Use the front panel reset button or I/O module contact.
• What is the maximum cable length for RS422? 1200 metres.
• Does the RIM affect monitoring path? No, it is not in the critical path.

Why Buy From Oiltech Controls?

• 15+ years of expertise in industrial automation spare parts.
• Global shipment via FedEx, UPS, DHL.
• Tested industrial surplus and refurbished options with full functionality.
• 12-month warranty on every product.
• Technical verification before shipment to ensure performance.
• Support for obsolete control systems and legacy parts.

Contact us: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp)

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