Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/90 |
| Brand | Bently Nevada |
| Product Type | Communication Gateway Module |
| Origin | USA |
| Manufacturer | Bently Nevada |
| Weight | 0.8 kg |
| Dimensions | 2.6 x 25.3 x 24 cm (estimated shipping size) |
| Operating Temp | -40 deg C to +70 deg C |
| Humidity | 5-95% RH, non-condensing |
| Communication Protocols | Modicon Modbus, Modbus/TCP, proprietary Bently Nevada protocol |
| Data Throughput | Up to 10,000 tags/sec |
| EtherNet/IP Latency | <5 ms |
| Maximum Concurrent Clients | 32 |
Communication and Machinery Monitoring Characteristics
The 3500/90 handles data exchange between the 3500 monitoring rack and external communication systems. Modbus and Modbus/TCP provide standardized access to monitored values, while the proprietary Bently Nevada protocol supports compatible system-level communication.
For machinery monitoring applications, data mapping should preserve the relationship between measurement values, channel status, alarm states, and rack status. Therefore, external systems should use the gateway data according to the configured 3500 rack addressing and tag assignments.
The supplied specification lists throughput of up to 10,000 tags/sec. It also specifies less than 5 ms latency for EtherNet/IP communication and supports up to 32 concurrent clients.
Frequently Asked Questions
Q: Which communication protocols does the 3500/90 support?
A: The supplied specifications identify Modicon Modbus, Modbus/TCP, and the proprietary Bently Nevada protocol.
Q: How many concurrent clients can the module support?
A: The specified maximum is 32 concurrent clients.
Q: What communication performance is specified for the gateway?
A: The supplied data specifies throughput up to 10,000 tags/sec and EtherNet/IP latency below 5 ms.
Field Installation Guidelines
- Install the module in the designated 3500 rack position and verify mechanical engagement before applying power.
- Confirm that the rack backplane and communication interfaces are correctly seated.
- Route communication cables separately from high-voltage power and high-current switching conductors where practical.
- Maintain cable shielding and grounding according to the connected network and site electrical standards.
- Verify Modbus or Modbus/TCP addressing before connecting the gateway to the control network.
- Confirm tag mapping and data scaling against the configured 3500 rack before placing transmitted values into service.
- Check communication status and client connections after commissioning.
- Do not exceed the specified limit of 32 concurrent clients.
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