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Bently Nevada 3500/92 Modbus RS485 I/O Communication Gateway Module
Technical Specifications:
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Protocols: Modbus RTU, Modbus TCP/IP, BACnet, OPC server option
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Serial Ports: RS232 / RS422 / RS485 isolated, configurable 1,200–230,400 baud
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Ethernet: 10/100BASE-T RJ45, auto-MDIX
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Modbus Capacity: 32 slaves, 256 registers, 64 I/O points
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Cable Distance: RS485 1,200 m at 38,400 baud
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Power: 24 VDC from rack backplane, 10 W max
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Isolation: 500 V channel-to-channel and channel-to-ground
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Operating Temperature: –40 °C to +70 °C
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Protection: IP67 front when door closed
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Dimensions: 230 × 89 × 32 mm
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Weight: 1.36 kg
Detailed content
Functional Features:
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Configurable Modbus register utility for custom data maps
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Simultaneous multi-master connections (serial + Ethernet)
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Alarm event packets with time stamp (1 ms resolution)
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Firmware flash via USB or Ethernet without rack shutdown
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SIL 2 suitable for safety-related data links
Application Scenarios:
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Exporting turbine shaft vibration to plant DCS for closed-loop load control
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Writing compressor suction temperature set-points from operator HMI
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Broadcasting fan motor current to plant-wide energy management system
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Interfacing 3500 alarms to safety PLC for emergency shutdown voting
