Description
Bentley Nevada 136188-02 Ethernet/RS232 Modbus I/O Module
The
Bentley Nevada 136188-02 is a high-performance
Ethernet/RS232 Modbus I/O module designed for the
3500 Series Machinery Protection System, enabling seamless integration of rotating equipment health data into industrial automation networks. It supports real-time monitoring of critical parameters like vibration, displacement, and speed, while offering advanced communication capabilities (Modbus RTU, Ethernet TCP/IP) to interface with process control systems and Bentley’s System 1™ software. With built-in redundancy and configurable alarm thresholds, this module ensures reliable operation in harsh industrial environments.
Parameter |
Specification |
Communication Protocols |
Modbus RTU (RS-485/RS-232), Ethernet TCP/IP |
Input/Output |
8 digital inputs/outputs, 4 analog inputs |
Power Supply |
24 VDC ±10% |
Operating Temperature |
-30°C to +65°C (-22°F to +149°F) |
Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
Dimensions |
241 mm × 24.4 mm × 99.1 mm (9.5 × 0.96 × 3.9 in) |
Weight |
0.44 kg (0.97 lb) |
Firmware |
Upgradable via Bentley’s System 1™ software |

- Multi-Protocol Connectivity: Bridges Modbus and Ethernet networks for flexible integration with PLCs, SCADA systems, and cloud platforms.
- Real-Time Data Processing: Transmits vibration and displacement data at high speeds (up to 50 kHz sampling rate) for predictive maintenance.
- Rugged Design: EMI/EMC protection and industrial-grade components ensure durability in high-vibration or corrosive environments.
- Redundancy Support: Built-in fault isolation and dual Ethernet ports for continuous operation in critical applications.
- Easy Configuration: Front-panel USB port for local system setup and remote access via web interface.
Industries:
- Power generation (turbines, generators)
- Oil and gas (pumps, compressors)
- Manufacturing (rotating machinery)
Case Study:
A North American refinery deployed the 136188-02 to monitor compressor vibrations. By detecting early-stage bearing wear through real-time data analytics, the plant reduced unplanned downtime by 40% and saved $300,000 annually in maintenance costs.
The 136188-02 outperforms standard I/O modules with:
- Dual Communication Layers: Simultaneous Modbus and Ethernet support vs. single-protocol competitors.
- Integrated Safety Features: Trip inhibit and reset functions built into the module for safety-critical systems.
- Lower Latency: Faster data transmission (≤10 ms) compared to legacy I/O solutions.

- System Compatibility: Verify compatibility with the 3500 Rack and System 1™ software.
- Communication Needs: Choose this module for facilities requiring both Modbus and Ethernet connectivity.
- Environmental Conditions: Opt for external terminal blocks if exposed to extreme temperatures or moisture.
- Grounding: Ensure proper grounding to prevent signal interference.
- Firmware Updates: Regularly update firmware to access new features and security patches.
- Sensor Calibration: Use Bentley’s Proximitor® sensors and follow factory calibration procedures.
Shanxi Xinyeda International Trade Co., Ltd. provides the
Bentley Nevada 136188-02 module and comprehensive automation solutions. Visit
www.xydcontrol.com or contact us for sales, technical support, and customized machinery protection systems.
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