Product Overview

The GE IC687BEM731-AB​is a specialized Ethernet communication module designed for GE Fanuc’s Series 90-30 Programmable Logic Controller(PLC)platform,serving as a critical network bridge between the proprietary Genius bus architecture and standard Ethernet TCP/IP networks.This intelligent interface module occupies a niche but essential role in industrial automation modernization,enabling legacy GE control systems to participate in contemporary networked environments without requiring complete system replacement.The IC687BEM731-AB​functions as a protocol translator and data gateway,allowing Series 90-30 PLCs to communicate over Ethernet with supervisory systems,HMIs,other PLCs,and enterprise-level applications while maintaining their existing Genius I/O network infrastructure.For facilities with significant investments in Genius-based distributed I/O systems,this module represents a cost-effective pathway to digital integration,extending the operational life and functional relevance of established control architectures in an increasingly interconnected industrial landscape.

Technical Specifications

Parameter Name

Parameter Value

Product Model

IC687BEM731-AB

Manufacturer

GE Fanuc(GE Intelligent Platforms)

Product Type

Ethernet Communication Module

Compatible Platform

GE Series 90-30 PLC

Primary Function

Genius Bus to Ethernet TCP/IP Gateway

Genius Bus Interface

Integrated Genius bus controller supporting full bus protocol

Ethernet Interface

10/100BASE-TX RJ45 port with auto-negotiation

Network Protocols

TCP/IP,UDP,Modbus TCP Client/Server

Genius I/O Handling

Maps Genius I/O data blocks to Ethernet-accessible registers

Configuration

Configured via GE Proficy Machine Edition or Logic Developer software

PLC Backplane Interface

Direct connection to Series 90-30 backplane

Address Assignment

Configurable IP address via software or BOOTP/DHCP

Data Mapping

User-configurable mapping between Genius global data and TCP/UDP sockets

Status Indicators

Multiple LEDs for power,network status,Genius bus activity,module status

Power Requirements

Powered through Series 90-30 backplane

Operating Temperature

0°C to 60°C

Storage Temperature

-40°C to 85°C

Relative Humidity

5%to 95%non-condensing

Certifications

UL Listed,cUL Listed,CE Marked

Main Features and Advantages

The GE IC687BEM731-AB​module’s principal advantage lies in its ability to bridge two fundamentally different industrial network paradigms without disrupting existing control logic or I/O wiring.By transparently mapping Genius I/O data to Ethernet-accessible memory space,it allows modern SCADA systems,HMIs,and data historians using standard protocols like Modbus TCP to directly access field data from legacy Genius distributed I/O blocks.This eliminates the need for complex middleware or custom driver development,significantly reducing integration costs and project timelines.The module operates bidirectionally,enabling not only data collection from the field but also command transmission from Ethernet-connected devices to Genius actuators and devices,creating a cohesive control environment that leverages both legacy and modern technologies.

Implementation simplicity represents another significant benefit.The module installs directly into any available slot in a Series 90-30 rack,requiring no additional hardware or external power supplies.Configuration is performed entirely within the familiar GE programming environment,where engineers define the mapping relationships between Genius global data locations and Ethernet-accessible registers.Once configured,the module operates autonomously,continuously synchronizing data between the Genius bus and Ethernet network with minimal CPU overhead.This transparent operation preserves the deterministic performance of the Genius I/O system while adding enterprise connectivity.For maintenance personnel,the comprehensive status indicators provide immediate visual feedback on both network health and Genius bus operation,facilitating rapid troubleshooting when communication issues arise.

Network flexibility further enhances the module’s value proposition.Supporting both client and server Modbus TCP functionality allows the IC687BEM731-AB​to initiate communications to other devices or respond to requests from supervisory systems.The configurable IP addressing(static or dynamic)accommodates various IT policies,while the standard RJ45 interface simplifies cabling with conventional Ethernet infrastructure.This flexibility makes the module suitable for diverse deployment scenarios,from simple point-to-point connections to complex networked architectures involving multiple controllers and supervisory stations.For organizations pursuing digital transformation initiatives,this gateway capability enables data extraction from legacy control layers for analytics,dashboards,and condition monitoring applications that would otherwise be inaccessible.

Application Field

The GE IC687BEM731-AB​finds particular relevance in industrial facilities undergoing phased modernization,where complete control system replacement is neither economically feasible nor operationally desirable.In water and wastewater treatment plants with extensive existing Series 90-30 controls and Genius remote I/O,this module enables integration of new SCADA systems without rewiring thousands of field connections.Treatment processes continue uninterrupted while new visualization and reporting capabilities are added incrementally,allowing operators to monitor clarifier levels,pump status,and chemical dosing from modern HMIs or even web-based interfaces.

Manufacturing operations with dispersed production lines represent another key application area.Facilities with multiple standalone machines,each controlled by Series 90-30 PLCs with Genius I/O,can use the IC687BEM731-AB​to network these islands of automation into a cohesive production monitoring system.Real-time production data,machine status,and quality metrics become available to manufacturing execution systems(MES)for performance analysis and scheduling optimization.This networking capability transforms isolated equipment into connected assets,enabling lean manufacturing initiatives and overall equipment effectiveness(OEE)tracking without the capital expenditure of complete control system replacement.

Power generation and distribution facilities benefit from the module’s ability to integrate legacy protective relaying and substation automation equipment with modern energy management systems.Genius-based I/O distributed across switchyards and generation buildings can report status and measurements to central control rooms via Ethernet backbones,enhancing situational awareness and operational efficiency.The module’s robust industrial design ensures reliable operation in electrically noisy environments typical of power infrastructure,maintaining communication integrity even during grid disturbances or equipment switching events.

Related Products

IC693CPU350:Series 90-30 CPU module that works in conjunction with the IC687BEM731-AB​for complete control system functionality.

IC693ACC726:Series 90-30 rack that houses the IC687BEM731-AB​and other modules in a cohesive hardware platform.

IC693PWR322:Power supply module providing stable power to the rack containing the IC687BEM731-AB.

IC693BEM331:Alternative Genius bus controller module without Ethernet functionality,highlighting the added value of the IC687BEM731-AB.

IC694MDL645:Digital I/O module example representing the types of Genius blocks that the IC687BEM731-AB​can interface with over Ethernet.

Proficy Machine Edition:Configuration software essential for programming and setting up the IC687BEM731-AB​module.

IC690GEN001:Genius bus repeater/extender that might be used in conjunction with the IC687BEM731-AB​in large distributed systems.

IC693CMM321:Communication module for Series 90-70 systems,illustrating the broader GE communication module ecosystem.

Installation and Maintenance

Pre-installation preparation:Successful deployment of the GE IC687BEM731-AB​begins with thorough planning of both the Genius bus and Ethernet network architectures.Document existing Genius bus device addresses and global data assignments to ensure proper mapping in the Ethernet gateway.Verify that the target Series 90-30 rack has an available slot and sufficient backplane power capacity for the additional module.Plan the Ethernet network parameters including IP addressing scheme,subnet configuration,and any necessary router/firewall rules to accommodate the new industrial device.Prepare the configuration in Proficy Machine Edition offline,defining the precise mapping between Genius data blocks and Modbus TCP registers before physical installation.

Physically installing the module requires powering down the PLC rack,inserting the IC687BEM731-AB​into the designated slot,and securing it properly.Connect the Genius bus cable to the dedicated port,ensuring proper termination if this module is at the end of the bus segment.Connect standard Ethernet cabling from the module’s RJ45 port to the plant network infrastructure.Before restoring power,double-check all connections and verify that the Ethernet switch port is configured appropriately(auto-negotiation typically suffices).Apply power and observe the module’s LED indicators during initialization to confirm proper startup sequence.

Maintenance recommendations:The solid-state design of the IC687BEM731-AB​requires minimal routine maintenance,but proactive monitoring ensures optimal performance.Regularly review the module’s status LEDs during routine inspections,noting any abnormal indications that might suggest communication issues.Monitor network performance metrics through connected systems,watching for increased latency or packet loss that could indicate network congestion or hardware degradation.Keep the module firmware updated according to GE’s recommendations,applying updates during planned maintenance windows to avoid disruption.Maintain backup copies of the configuration in multiple locations,including the module’s non-volatile memory if supported,the engineering workstation,and secure offsite storage.

When troubleshooting communication issues,systematically isolate potential failure points beginning with the most accessible components.Verify Ethernet connectivity using ping tests from connected devices,check Genius bus termination and cabling integrity,and confirm that configuration parameters match between the module and accessing systems.The module’s comprehensive diagnostic capabilities,accessible through both LED indicators and software tools,typically provide sufficient information to identify common issues like IP conflicts,Genius bus faults,or mapping errors.For persistent problems,consult the detailed diagnostic logs available through Proficy Machine Edition,which often reveal subtle issues not apparent through basic indicators.

Product Guarantee

We guarantee that every GE IC687BEM731-AB​Ethernet communication module is an authentic GE Intelligent Platforms product,manufactured to original specifications and sourced through authorized supply channels.Each module undergoes comprehensive testing prior to shipment,verifying all communication interfaces,protocol functionality,and hardware integrity to ensure reliable performance in industrial environments.Our quality verification process includes Genius bus protocol validation,Ethernet connectivity testing under various network conditions,and configuration persistence checks to confirm the module retains settings through power cycles.

Our commitment extends throughout the product lifecycle with a comprehensive warranty against defects in materials and workmanship.We provide technical support from automation specialists experienced with GE Series platforms,offering assistance with configuration,integration challenges,and troubleshooting guidance.For customers maintaining legacy control systems,we offer continuity of supply for discontinued components,helping extend the operational life of critical automation infrastructure.Our inventory management ensures availability of this essential connectivity module,with expedited logistics options to minimize operational disruption during urgent replacement scenarios.

Trust in our expertise as your industrial automation components partner,where product authenticity,technical knowledge,and reliable supply chain management converge to deliver solutions that bridge legacy systems with modern networking requirements.We understand the critical importance of maintaining operational continuity while implementing digital transformation initiatives,and we’re committed to providing the genuine components and expert support needed to achieve these objectives in your facility.

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