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Bently Nevada 3500/92 136180-01｜Communication Gateway Module｜
Technical Specifications
Supported protocols
Modbus RTU (serial) and Modbus TCP (Ethernet)
Compatible with standard Modbus master/slave request–response communication
Communication interfaces
Ethernet: RJ45, 10BASE-T, IEEE 802.3
Serial: RS-485 (two-wire), supports RS-232 / RS-422 switching
RS-485 communication parameters
Baud rate: 1,200–230,400 bps, configurable
Maximum number of slave stations: 31
Maximum communication distance: 1,200 m (shielded twisted pair)
Data capacity
Supports up to 256 Modbus register mappings, covering measurement values, alarm states, and diagnostic information
Power supply
24 V DC (wide range 19.2–30 V DC), compatible with 3500 rack power supply
Power consumption
Typical: 5.6 W (with RS-485 I/O module)
Gateway base consumption: 5.0 W
Environmental conditions
Operating temperature: –30 °C to +65 °C
Storage temperature: –40 °C to +85 °C
Humidity: ≤ 95%, non-condensing
Core Functions and Technical Advantages
Dual-protocol Modbus communication
Supports Modbus RTU (serial) and Modbus TCP (Ethernet), meeting communication requirements of different external systems such as DCS, PLC, and SCADA.
Flexible data mapping
Modbus register addresses and data content are fully configurable. Measurement values, alarm states, and diagnostic information from all modules within the 3500 rack can be uploaded as required.
Multi-interface adaptation
Ethernet: high-speed data upload and remote configuration
RS-485: fieldbus integration and long-distance communication in industrial environments
Industrial-grade reliability
Designed for wide temperature and voltage ranges with strong electromagnetic interference immunity. Suitable for harsh industrial environments, with MTBF > 100,000 hours.
Convenient configuration and maintenance
Supports remote parameter configuration via 3500 rack configuration software. Front-panel LED indicators enable rapid identification of communication and operational faults, with support for online diagnostics.
System-level integration capability
Aggregates the global operating status of the 3500 system, enabling centralized monitoring and linkage control with DCS/PLC systems, including ESD emergency shutdown applications.
Bently Nevada 3500/92 136180-01｜Communication Gateway Module｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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