Bently Nevada 125736-01
Bently Nevada 125736-01
Bently Nevada 125736-01
Bently Nevada 125736-01
Bently Nevada 125736-01
Bently Nevada 125736-01
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125736-01

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The Bently Nevada 125736-01 is a high-performance Modbus RS232/RS422 I/O module that enables reliable serial communication between 3500 monitoring racks and external control systems. It integrates seamlessly with the 3500/92 Communication Gateway for real-time process monitoring.
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Technical specifications for 125736-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    125736-01
  • Product Family:
    3500 System
  • Power Consumption:
    5.0 Watts typical with ModbusRS232/ RS422 I/O Module
  • Modbu Protocols:
    Based on AEG Modicon PI-MBUS-300 Reference Manual. Uses Remote Terminal Unit (RTU) transmission mode.
  • Communication Link:
    Ethernet, 10Mbps, and conforms to IEEE802.3
  • Connection:
    RJ-45 (telephone jack style) for 10BASE-T Ethernet cabling
  • Rack Space Requirements:
    1 full-height rear slot
  • Operating Temperature:
    -30°C to +65°C (-22°F to +149°F)
  • Storage Temperature:
    -40°C to +85°C (-40°F to +185°F)
  • Humidity:
    95%, non-condensing
  • Weight:
    0.44 kg
  • Estimated shipping dimensions:
    2.5x11.2x24.2cm
  • Tariff Code:
    6602000090
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Operating Environment Monitoring Application

Features:

  • Provides Reliable Modbus RS232/RS422 Communication For 3500 Rack Modules
  • Enables Data Transmission Between Rack Monitored Values And External Systems
  • Supports Both Serial And Ethernet Interfaces With Configurable Protocol Options
The Bently Nevada 125736-01 I/O Module serves as a dedicated communication interface for 3500 rack systems. It enables seamless data exchange between monitored values in the rack and external process control or data acquisition systems. The module supports both RS232 and RS422 serial communication, allowing flexibility for various industrial network setups.

Equipped with configurable Modbus protocol settings, the 125736-01 allows precise mapping of monitored values to external systems, simplifying integration with SCADA and automation platforms. It also provides stable and low-latency communication, ensuring that critical machine condition data is accurately transmitted for analysis and monitoring.

Compact and reliable, this module supports efficient deployment in existing 3500 rack configurations and offers robust performance for continuous industrial operation.

The 125736-01 Bently Nevada Modbus RS232/RS422 I/O Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 125736-01 Modbus RS232/RS422 I/O Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 125736-01 Modbus RS232/RS422 I/O Module Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 125736-01
  • Condition New Original ready stock
  • Product Family 125720-01,135031-01,125768-01
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Extreme Temperature Adaptability: Designed for harsh industrial environments, this module operates within a temperature range of -30°C to +65°C (-22°F to +149°F), ensuring stable operation in both frigid and high-temperature machine rooms.
  • High Humidity Tolerance: Capable of withstanding up to 95% non-condensing relative humidity, effectively addressing the risk of electronic corrosion in high-humidity environments such as chemical plants or offshore platforms.
  • Industrial-Grade Electromagnetic Compatibility (EMC): Complies with stringent electromagnetic interference shielding standards, maintaining the integrity of serial communication signals without errors even in strong electromagnetic fields such as those from large motors and frequency converters.
  • Vibration and Shock Resistance: As a component of a mechanical protection system, its physical structure is reinforced to withstand continuous micro-vibrations from the back of industrial frames, ensuring secure mechanical connections at the terminals.
  • Modbus RTU Protocol Support: This interface allows real-time export of all static monitoring data (such as vibration, displacement, and temperature values) within the 3500 frame, enabling continuous remote monitoring of the rotating machinery's status.
  • Communication Link Diagnostics: Working with the 3500/92 main module, it can monitor serial link traffic and error rates, supporting real-time viewing of communication interruptions or data conflicts in the host computer software.
  • Configuration Verification and Protection: This module supports write protection via hardware wiring, monitoring and preventing unauthorized remote parameter modifications, ensuring the security of the system's monitoring logic.
  • Alarm and Status Synchronization: Real-time transmission of the framework's alarm and hazard statuses, as well as the module's OK status, ensures control room personnel can immediately grasp the health status of the field protection system.
  • DCS/PLC Data Integration: The most typical application is integrating the Bently Nevada monitoring system with factory control systems such as Yokogawa, Honeywell, or Siemens, achieving data fusion between process control and mechanical protection.
  • Long-distance serial communication: Utilizing the differential signal characteristics of its RS422 interface, it achieves interference-resistant data transmission up to 1200 meters, suitable for factory layouts with large spans between the central control room and field cabinets.
  • Local HMI display: Connects to field touchscreens or human-machine interfaces (HMIs) to provide maintenance personnel with real-time unit operation curves and numerical displays, allowing them to view status without connecting to a configuration computer.
  • Centralized management of multiple units: In pump stations or compressor groups, multiple 3500 frames can be connected in series via RS485 daisy-chaining (using RS422 port configuration) to achieve centralized data acquisition from multiple devices.
Description
The Bently Nevada 125736-01 is engineered for precision serial data transfer in industrial monitoring environments. Designed for installation on the rear of 3500 monitoring frames, it serves as the critical interface for connecting racks to process control and automation systems. With typical power consumption of 5.0 Watts, it delivers reliable performance while maintaining energy efficiency.

This module supports a range of communication protocols, including Modicon Modbus via serial interfaces and Modbus/TCP for Ethernet-based communications, ensuring flexible integration across legacy and modern systems. Its adherence to the AEG Modicon PI-MBUS-300 standard and RTU transmission mode guarantees consistent, accurate data exchange.

The physical connection is made through an RJ-45 interface compatible with 10BASE-T Ethernet cabling, providing a secure and standardized communication link. The module occupies a single full-height rear slot in the 3500 rack, simplifying installation and maintenance.

Designed for harsh industrial conditions, the 125736-01 operates within a temperature range of -30°C to +65°C and can withstand storage conditions from -40°C to +85°C. It also tolerates up to 95% non-condensing humidity, making it suitable for a wide variety of industrial environments.

When paired with the Bently Nevada™ 3500/92 Communication Gateway, this module facilitates comprehensive communication of monitored values and rack statuses, enabling integration with both process control and data acquisition software. Its compatibility with proprietary Bently Nevada protocols ensures seamless interaction with 3500 Rack Configuration Software.
Alternative Names
133323-01 136188-01 136188-02 136180-01 149986-01
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary function of the 125736-01 module?
The 125736-01 is a Modbus RS232/RS422 I/O module that enables serial communication between 3500 monitoring racks and external control systems.
How does it ensure accurate data transfer?
It uses the RTU transmission mode based on the AEG Modicon PI-MBUS-300 standard, ensuring consistent and reliable communication with process control and automation systems.
How does the module integrate with the 3500/92 Communication Gateway?
It provides the serial interface for the Gateway to relay rack-monitored values to external systems, supporting both RS232/RS422 and Ethernet connections.
What software benefits from this integration?
Bently Nevada 3500 Rack Configuration Software and Data Acquisition Software can access monitored data directly, enabling easy configuration, real-time monitoring, and historical data analysis.

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