3500/91 190782-01 single-frame interface module

The BENTLY 3500/91 190782-01 is a single-frame interface module (also referred to as a "Rack Interface Module") dedicated to Bently Nevada’s 3500 Series Rotating Machinery Protection & Monitoring System. As a core connectivity component for the 3500/10 single-frame rack, it serves two key roles: first, it enables data communication between the local 3500 rack and upper-level control/monitoring systems (e.g., DCS, SCADA, or Bently’s EnerVista software); second, it manages rack-level functions such as module status monitoring and power distribution coordination. The part number 190782-01 denotes a standardized configuration optimized for small-to-medium rotating machinery monitoring setups (e.g., single turbines or compressors) that require reliable, cost-effective single-frame integration. Below is its comprehensive detailed information:

I. Core Technical Parameters

Category	Specific Specifications
Basic Identification	- Model: 3500/91 (Single-Frame Interface Module)- Part Number: 190782-01- Applicable System: Exclusively compatible with BENTLY 3500/10 single-frame racks (supports up to 10 functional modules per rack)- Primary Role: Rack-level communication hub + local status management
Communication Capabilities	- Supported Protocols:- Modbus RTU (via RS-485 port, for legacy DCS/SCADA integration)- RS-232 (for local configuration/debugging via laptop or HMI)- Bently Proprietary Protocol (NetCon, for communication with EnerVista Machinery Health software)- Data Transfer Rate:- RS-485: Up to 115.2 kbps (half-duplex, multi-drop support for up to 32 devices)- RS-232: Up to 115.2 kbps (full-duplex, point-to-point)- Transmitted Data Types: Real-time measurement values (vibration, speed, temperature), alarm status (Warning/Danger), module fault codes, and rack power status
Rack Management Functions	- Module Status Monitoring: Scans the health status of all installed modules (e.g., 3500/42M vibration monitor, 3500/50 speed module) via the rack backplane; reports faults (e.g., sensor open, module overheating) to upper systems.- Power Coordination: Monitors the 3500/15 power supply module’s output voltage (+24V DC) and current; triggers a "Rack Power Fault" alert if voltage deviates beyond ±10% of nominal value.- Configuration Storage: Stores rack-level configuration data (e.g., module addressing, communication settings) in non-volatile memory (EEPROM), ensuring settings persist after power cycles.
Hardware Interface	- Communication Ports:- 1 x RS-485 port (terminal block, galvanically isolated to prevent ground loops)- 1 x RS-232 port (DB9 connector, for local laptop connection)- 1 x backplane interface (for data/power exchange with 3500/10 rack and installed modules)- Status LEDs: 4 front-panel LEDs for intuitive monitoring:- POWER (Green): Rack power is normal.- COMM (Green): Communication with upper systems is active.- ALARM (Yellow): Any module in the rack has an active warning.- FAULT (Red): Rack power fault or module critical failure.