Industrial functional safety critical component: GE 8851-LC-MT, providing the highest level of protection for your assets!

The GE 8851-LC-MT is a high-performance dual-port Ethernet communication module engineered for GE’s PACSystems RX3i and RX7i controllers, serving as the backbone for industrial IoT connectivity in mission-critical applications. Designed for deterministic data exchange, this module enables real-time control coordination across distributed systems through simultaneous support of Ethernet Global Data (EGD), Modbus TCP, and SRTP protocols. The GE 8851-LC-MT features hardware-level cybersecurity with IEEE 802.1X authentication and MAC address filtering, while its integrated switch functionality allows daisy-chained topologies that reduce infrastructure costs by 30%. With a wide operating temperature range (-40°C to +85°C) and 1.5kV port-to-backplane isolation, this module delivers robust performance in substations, manufacturing cells, and process skids where network resilience and low-latency communication are paramount. Its non-volatile memory ensures configuration retention during power cycles, making the GE 8851-LC-MT indispensable for modern automation architectures.

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Description

The GE 8851-LC-MT is a high-performance dual-port Ethernet communication module engineered for GE’s PACSystems RX3i and RX7i controllers, serving as the backbone for industrial IoT connectivity in mission-critical applications. Designed for deterministic data exchange, this module enables real-time control coordination across distributed systems through simultaneous support of Ethernet Global Data (EGD), Modbus TCP, and SRTP protocols. The GE 8851-LC-MT features hardware-level cybersecurity with IEEE 802.1X authentication and MAC address filtering, while its integrated switch functionality allows daisy-chained topologies that reduce infrastructure costs by 30%. With a wide operating temperature range (-40°C to +85°C) and 1.5kV port-to-backplane isolation, this module delivers robust performance in substations, manufacturing cells, and process skids where network resilience and low-latency communication are paramount. Its non-volatile memory ensures configuration retention during power cycles, making the GE 8851-LC-MT indispensable for modern automation architectures.

GE 8851-LC-MT

GE 8851-LC-MT

Technical Specifications

Parameter Name Parameter Value
Product Model 8851-LC-MT
Manufacturer GE (Emerson)
Product Type Dual-Port Ethernet Communication Module
Protocol Support EGD, Modbus TCP, SRTP, FTP, SNMPv3
Data Rate 2× 10/100BASE-TX (auto-negotiating)
Switching Capacity 1 Gbps non-blocking
Maximum Connections 128 concurrent TCP sessions
Isolation 1500V AC port-to-backplane
Configuration Proficy Machine Edition software
Network Services VLAN (802.1Q), RSTP (802.1w), QoS (802.1p)
Power Requirement 5V DC @ 400mA (backplane)
Operating Temperature -40°C to +85°C
Certifications UL 61800-3, CE, IEC 61131-2, DNV GL
Shock Resistance 30g @ 11ms (IEC 60068-2-27)

Main Features and Advantages

Deterministic Networking: Achieves <1ms EGD update times for real-time control synchronization across multiple PLCs. Hardware timestamping ensures precise event sequencing for grid synchronization and motion control.

Cybersecurity Architecture: Implements port-based authentication (802.1X) and MAC address lockdown to prevent unauthorized access. Signed firmware updates and role-based access control meet NERC CIP-007 standards.

High Availability: Dual redundant ports support self-healing ring topologies with <10ms failover via RSTP. Non-stop forwarding maintains data flow during module firmware updates.

Unified Engineering: Seamless integration with PACSystems controllers using Proficy Machine Edition. Embedded web server provides diagnostics without proprietary tools.

Application Field

The GE 8851-LC-MT enables secure industrial networking across critical sectors:

Energy Infrastructure:

 

Substation automation (IEC 61850-8-1 GOOSE messaging)

 

Wind turbine farm controller synchronization

 

Solar inverters performance monitoring

 

Water Management:

 

Regional SCADA system integration

 

Pump station control via Modbus TCP

 

Water quality analyzer data aggregation

 

Discrete Manufacturing:

 

Automotive body shop robot coordination

 

Pharmaceutical batch process synchronization

 

Electronics SMT line machine-to-machine communication

 

Transportation:

 

Tunnel ventilation control networks

 

Airport baggage handling system integration

 

Rail signaling system data backbone

 

Related Products

 

IC695ETM001: Single-port RX3i Ethernet module

 

DS200DCFBG1B: Profibus DP gateway

 

RX7i CHS110T: Fiber-optic communication module

 

IC698CPE010: RX7i CPU for high-end control

 

PACSystems RSTi-EP CPE301: Compact controller

 

QuickPanel QP-C1MM: Operator interface

 

VME77xx Series: Rugged computing platforms

GE 8851-LC-MT

GE 8851-LC-MT

Installation and Maintenance

Pre-installation preparation: Verify RX3i/RX7i backplane compatibility (IC695/IC698 chassis), configure IP settings via Proficy Machine Edition, and ensure shielded CAT6 cabling with proper grounding (<0.1Ω resistance).

Maintenance recommendations: Monitor network load via SNMP traps. Update GE 8851-LC-MT firmware annually using Emerson SecureLoader. Clean RJ45 ports quarterly with contact enhancer in corrosive environments. Replace after 10 years of continuous operation.

 

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