Bently Nevada 3500/70 125720-01 Communication gateway module

Specific Parameters

Electrical Parameters
Supply Voltage: 24V DC ±10%, uniformly powered by 3500 system rack
Communication Interfaces: 1×Ethernet (TCP/IP), 1×RS232, 1×RS422/RS485 (switchable)
Supported Protocols: Modbus RTU, Modbus TCP, Bently Nevada proprietary protocol
Data Transmission Rate: Up to 100Mbps for Ethernet, up to 115200bps for serial interface
Isolation Level: 2kV AC between communication interfaces and system (1 minute), 1kV AC between serial interfaces (1 minute)
Protection Functions: Overvoltage protection (≤30V DC), surge protection (compliant with IEC 61000-4-5)
Power Consumption: ≤8W under normal operation
Environmental Parameters
Operating Temperature: -30°C to 65°C (in-frame installation environment)
Storage Temperature: -40°C to 85°C
Relative Humidity: 5% to 95% (non-condensing, no dew formation)
EMC Immunity: Compliant with EN 61326-1 standard, common mode rejection ratio ≥120dB
Vibration Resistance: 5-500Hz, 1g acceleration (compliant with IEC 60068-2-6)
Protection Class: IP20 (module itself, dependent on 3500 frame protection)
Certification Standards: API 670, CE, ATEX Zone 2 (optional)
Mechanical Parameters
Dimensions: 24.4mm (W) × 241mm (H) × 99.1mm (D) (fits 3500 standard frame slot)
Weight: Approximately 0.4kg
Mounting Method: 3500 series standard frame slot mounting (compatible with 19-inch cabinets)
Housing Material: Flame-retardant engineering plastic (UL 94 V-0 grade)
Terminal Type: Plug-in terminals, compatible with 18-24 AWG wires
Indicators: Power, Ethernet communication, serial communication, fault status LEDs

Product Performance

The module adopts dual-protocol parallel processing technology with protocol conversion response time <10ms, which can synchronize all monitoring data in the 3500 frame in real time, including vibration peaks, shaft displacement, temperature values and equipment status information. It supports custom Modbus register mapping, which can filter transmitted data on demand to reduce network bandwidth occupation.

Equipped with link redundancy function, when the main communication link fails, it automatically switches to the backup link with switching time <50ms, ensuring the continuity of data transmission. Integrated online self-test module monitors communication interface status and protocol operation integrity in real time, with fault diagnosis coverage ≥99%, and fault information can be alarmed through both indicators and system bus.

Fully compatible with Bently Nevada System 1® equipment health management software, it supports remote configuration and parameter modification, enabling protocol configuration and link debugging without shutdown. The mean time between failures (MTBF) is ≥500,000 hours, meeting the requirements of industrial-grade 24/7 continuous operation.

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