Description
Verify firmware compatibility with the installed 3500/22M TDI (typically 1.20 or later) and configuration software version in the OEM datasheet before installation.
Product Introduction
On a running 3500 rack the vibration, position, and status data stay local until a gateway moves them out. The Bently Nevada 3500/91 with 161204-01 main board and 161216-01 copper Ethernet I/O does exactly that over EGD, giving controllers such as GE Mark VIe deterministic access to the values they need for protection and supervisory logic.
Typical power draw sits at 7.4 W and the module pair occupies one front and one rear full-height slot. Update rates under one second keep the data fresh enough for most closed-loop or alarm-handling applications; always confirm the exact EGD exchange map against the plant controller configuration before the swap.
Key Selling Points & Differentiators
- Deterministic EGD v2.01 producer/consumer exchanges deliver rack status, float values, and setpoints with response times suited to controller use; copper 10/100BASE-TX interface is standard on the 161216-01.
- 7.4 W typical draw and −30 °C to +65 °C operating range fit the same thermal and power envelope as other 3500 modules.
- Direct difference versus a 3500/92: this unit is purpose-built for EGD (Mark VIe and similar), while the /92 family handles Modbus serial or TCP; choose according to the target protocol, not convenience.
- Not recommended when the plant standard is already Modbus TCP/IP or when fiber is required (use the 161216-02 I/O option instead).
- Every unit passes incoming visual and label checks, live power-up on a 3500 test rack, Ethernet link and EGD handshake verification, and final ESD packaging with dated QC label. Test report available on request.
- Supports the data-transfer expectations of API 670 machinery-protection installations when the rest of the rack and configuration remain compliant.





