GE IC697BEM741RR

Description

Detailed Parameter Table

GE IC697RCM711

Product Introduction

The GE IC697BEM741RR is a redundant Genius Bus Expansion Module for GE’s Series 90-70 PLC systems, engineered to solve scalability challenges in large-scale distributed automation by extending redundant Genius Bus networks. As a key complement to GE’s fault-tolerant fieldbus ecosystem, the GE IC697BEM741RR acts as a “redundant bridge” between the central Genius Bus Controller (e.g., IC697CGR772) and remote I/O modules—enabling the expansion of bus networks to cover large facilities while maintaining zero single points of failure.

Designed for mission-critical connectivity, the GE IC697BEM741RR features four Genius Bus ports (2 input, 2 output) configured for redundant chaining: if one bus path fails (e.g., damaged cable), the module automatically routes communication through the backup path, ensuring uninterrupted data flow to devices like IC697ADC701 analog input modules or IC697VAL348 analog output modules. Its auto-sensing speed (156 kbps–2.5 Mbps) eliminates manual speed matching, while its ability to extend bus segments by 1,500 meters makes it ideal for industries like automotive manufacturing campuses, chemical plants, or municipal water treatment networks—where devices may be spread across multiple buildings or sites.

Core Advantages and Technical Highlights

Redundant Bus Chaining for Fault-Tolerant Expansion: The GE IC697BEM741RR’s 4-port redundant design (2 input/2 output) enables “loop” or “dual-chain” bus topologies—critical for large systems where a single bus break could disconnect entire device clusters. For example, in a 2-kilometer-long chemical plant, the module can chain two redundant bus segments: one connecting the central IC697CGR772 to the GE IC697BEM741RR, and another linking the module to remote IC697IOL131 digital input modules. If one segment’s cable is cut during maintenance, the module switches to the backup segment in <10 ms, ensuring no loss of sensor data from reactor pressure monitors.

Auto-Sensing Speed and Plug-and-Play Integration: Unlike fixed-speed bus expansion modules, the GE IC697BEM741RR auto-senses the communication speed of the upstream bus (156 kbps, 625 kbps, 2.5 Mbps) and matches it automatically—eliminating manual configuration errors that cause bus desynchronization. When paired with the IC697CGR772 controller, the module is detected instantly via Proficy Machine Edition, and no additional software drivers are required. This plug-and-play functionality reduces commissioning time by 50% compared to third-party expansion modules, critical for time-sensitive projects like factory line expansions.

Extended Bus Reach and High Device Density: The GE IC697BEM741RR extends Genius Bus segments by up to 1,500 meters (at 156 kbps) and supports up to 64 devices per segment—far more than basic expansion modules (typically 32 devices). This is transformative for large facilities: a municipal water treatment network can use two GE IC697BEM741RR modules to connect 128 remote flow sensors across 3 kilometers, all while maintaining redundant communication. The module also supports bus termination (via external 24V DC) to preserve signal integrity over long distances, eliminating the need for costly signal repeaters.

Industrial-Grade Ruggedness for Harsh Environments: Built to withstand industrial stress, the GE IC697BEM741RR includes ESD protection (±15kV air) to shield against static discharge from equipment or personnel, and overvoltage protection (±30V DC) to prevent damage from accidental wiring errors (e.g., connecting a 24V DC actuator to a bus port). Its short-circuit isolation feature quarantines faulty devices (e.g., a damaged IC697ADC701 module) so they do not disrupt the entire bus—critical for avoiding cascading failures in safety-critical systems. With a -5°C to 65°C operating range and conformal-coated circuit boards, the module resists dust, moisture, and temperature fluctuations, ensuring 10+ years of reliable operation in typical industrial conditions.

Typical Application Scenarios

The GE IC697BEM741RR excels in large-scale, fault-tolerant distributed automation. In automotive manufacturing campuses, for example, the GE IC697BEM741RR is paired with IC697CGR772 and IC697CPM924RR to expand a redundant Genius Bus network across three assembly buildings: the central controller connects to the GE IC697BEM741RR via two redundant cables, and the module links to 50+ IC697VAL348 modules controlling robotic welders in the remote buildings. If one cable between the controller and module is damaged by forklift traffic, the module switches to the backup cable in <10 ms, preventing production halts. Its auto-sensing speed (2.5 Mbps) ensures real-time torque data transfer from welders to the central CPU.

In chemical plants with multiple production units, the GE IC697BEM741RR extends redundant bus networks to remote storage tanks: the module connects to the central IC697CGR772 via 1,200-meter cables (156 kbps speed) and links to IC697ADC701 modules monitoring tank level and temperature. Redundant bus paths ensure no data loss if a cable is corroded by chemical vapors, while short-circuit isolation prevents a faulty level sensor from taking down the entire bus. The module’s ATEX Zone 2 certification allows installation near flammable solvent tanks, ensuring compliance with safety standards.

In municipal water treatment networks, the GE IC697BEM741RR connects remote pump stations to a central control room: two modules are deployed—one at the control room (paired with IC697CGR772) and another at the pump station—linked by two redundant 1,500-meter cables. The pump station module connects to IC697IOL131 modules monitoring pump status and IC697ADC701 modules tracking flow rates. If one cable is damaged by construction, the module switches to the backup, ensuring the central IC697CPU780 CPU retains control of pump operations—critical for avoiding untreated water discharge.

GE IC697RCM711

Related Model Recommendations

GE IC697CGR772: Genius Bus Controller Module, the primary partner of GE IC697BEM741RR—the module expands the controller’s bus network while maintaining redundancy.

GE IC697ADC701: 8-channel analog input module, a key device connected via GE IC697BEM741RR—sends temperature/pressure data to the central PLC.

GE IC697VAL348: 4-channel analog output module, controlled via GE IC697BEM741RR’s redundant bus—executes valve/pump adjustments in remote locations.

GE IC697IOL131: 8-channel digital input module, connects to GE IC697BEM741RR to monitor discrete signals (e.g., pump on/off status) in distributed sites.

GE IC697CPM924RR: Mid-to-high-performance redundant CPU, relies on GE IC697BEM741RR and IC697CGR772 for redundant I/O communication.

GE IC697PWR711: Series 90-70 power supply, provides stable 5V DC to GE IC697BEM741RR—ensures reliable bus expansion.

GE IC697MEM719: High-capacity memory module, pairs with IC697CPM924RR to store bus configuration logs from GE IC697BEM741RR.

GE IC754CBF15CTD: 15-inch fan-cooled HMI, displays GE IC697BEM741RR status (bus health, port activity) via data from the central CPU.

GE IC697RCM711: Redundant communication module, works with GE IC697BEM741RR to extend redundant bus connectivity to offshore or remote I/O racks.

GE Proficy Machine Edition 8.5+: Programming software, configures GE IC697BEM741RR (port roles, termination) and monitors bus redundancy.

Installation, Commissioning and Maintenance Instructions

Installation preparation: Before installing GE IC697BEM741RR, power off the Series 90-70 backplane and wear an ESD wrist strap (grounding resistance <1 MΩ) to protect the module’s bus circuitry. Verify the backplane is compatible (10-slot+ Series 90-70) and the upstream IC697CGR772 controller has firmware ≥8.5 (required for redundancy sync). Inspect the module’s backplane pins for bending/corrosion—damaged pins cause communication failures. Align GE IC697BEM741RR with an empty slot, push until it clicks, and secure with a locking screw. For redundant chaining, connect two twisted-pair cables from the upstream controller to the module’s input ports, and two cables from the module’s output ports to downstream devices. Terminate each bus segment with a 120Ω resistor (powered by 24V DC) to ensure signal integrity.

Maintenance suggestions: Conduct weekly checks of GE IC697BEM741RR’s status LEDs—green for active bus, amber for backup bus, red for faults (e.g., short circuit). Use Proficy Machine Edition to monitor bus metrics (data throughput, error rates) and isolate faulty segments. Every 3 months, inspect bus cables for damage (cuts, fraying) and clean the module’s vents with compressed air (40-60 PSI) to prevent overheating. Test redundancy quarterly by disconnecting one input cable—confirm the module switches to the backup in <10 ms. If the module fails, replace it with a genuine GE IC697BEM741RR (matching firmware) and restore configuration from a backup. Avoid exposing the module to direct chemicals or excessive moisture, even with its rugged design.

Service and Guarantee Commitment

The GE IC697BEM741RR comes with a 36-month warranty from purchase, covering defects in materials, redundant bus functionality, and compatibility with Series 90-70 systems. GE’s global technical support team provides 24/7 assistance via email, remote diagnostics, and phone—critical issues (e.g., bus failure causing production downtime) receive a 2-hour response, with on-site support within 48 hours in major regions (North America, Europe, Asia Pacific).

For customers in mission-critical sectors (chemical, automotive, water), GE offers customized “Redundant Bus Support Agreements” for GE IC697BEM741RR, including semi-annual on-site bus health checks (cable testing, termination verification), firmware updates, and expedited spare parts delivery (48-hour shipping). All genuine modules undergo rigorous testing—1,500+ hours of redundant bus stress tests, EMI immunity trials, and temperature cycling—to meet UL 508 and IEC 61131-2 standards. In warranty claims, GE provides a replacement module within 48 hours to restore redundancy, ensuring minimal disruption to your distributed automation system.