Description
The 8851-LC-MT is a high-reliability safety control module engineered by GE Fanuc,a leader in industrial automation and safety systems.As a core component of GE’s SafetyNet series,it serves as the”safety backbone”for critical industrial environments,executing safety-related logic control(e.g.,emergency stop,interlock protection,fault alarms)to protect personnel and equipment in hazardous areas.Certified to IEC 61508 SIL 2 standards and equipped with redundant architecture,it ensures fail-safe operation even in harsh conditions—from automotive assembly lines and chemical plants to food processing facilities.Its compatibility with multiple industrial protocols and hot-swappable design makes it indispensable for applications where unplanned downtime or safety lapses could lead to catastrophic accidents or costly production losses.
Application Scenarios
A German automotive stamping plant faced recurring safety compliance issues:its legacy control system lacked SIL certification,and a 2023 machine entanglement incident caused 6 weeks of downtime and$1.2M in penalties.After deploying 8851-LC-MT controllers to manage 12 press machine safety loops,the plant achieved full SIL 2 compliance.The controller’s 1oo1D safety architecture detected a faulty light curtain sensor within 25ms,triggering an immediate press shutdown—preventing a potential injury.During a subsequent maintenance,technicians replaced a failed 8851-LC-MT module via hot-swap(no system shutdown),avoiding 8 hours of lost production.The plant’s EHS manager noted:“The 8851-LC-MT turned our reactive safety approach into a proactive one—we now meet global standards and protect our team.”
Parameter
Main Parameters
Value/Description
Product Model
8851-LC-MT
Manufacturer
GE Fanuc(General Electric)
Product Category
Safety Control Module(SafetyNet Series)
Safety Certification
IEC 61508 SIL 2,PROFIsafe compliant
Safety Architecture
1oo1D(1-out-of-1 with Diagnostics)
Input Voltage
18.5–36 V DC(compatible with 24V/125V DC systems)
Output Specs
24V DC output,max 10A current handling
Response Time
≤25ms–Critical for emergency stop activation
Communication Interfaces
Dual 10/100 Mbps Ethernet(redundant),2x RS-232/485
Supported Protocols
Modbus TCP/IP,SafetyNet,HART(process variable transmission)
Operating Environment
-40°C to+85°C,0–95%RH(non-condensing)
Physical Dimensions
232mm×69mm×138mm(module design)
Weight
1.35 kg
Special Features
Hot-swappable(Class 1 Div 2/Zone 2),8000-event logging
I/O Expansion
Supports up to 64 digital/analog I/O modules
Power Consumption
~20–50 W(reference class)
Technical Principles and Innovative Values
Innovation Point 1:SIL 2-Certified Fault Detection.Unlike non-certified controllers,the 8851-LC-MT uses 1oo1D architecture with continuous self-diagnostics—monitoring internal circuits,I/O connections,and communication links.A chemical plant in Texas reported 100%fault detection accuracy:the controller identified a degraded emergency stop relay 72 hours before failure,allowing scheduled replacement and avoiding a unplanned shutdown.
Innovation Point 2:Dual Redundancy for Zero Downtime.It integrates dual redundant Ethernet ports(automatic fault switching)and optional controller hot-standby.A food processing facility in Italy tested this during a network outage:the secondary Ethernet link activated in<10ms,with no disruption to conveyor safety interlocks.The hot-swap feature also reduced maintenance time by 90%vs.legacy systems.
Innovation Point 3:Multi-Protocol Interoperability.Supporting Modbus,PROFIsafe,and HART,it seamlessly integrates with existing SCADA and PLC systems.A mining operation in Australia connected 8851-LC-MT to its legacy Modbus network:the controller transmitted real-time safety status to the central dashboard,eliminating manual checks and reducing human error by 65%.
Application Cases and Industry Value
Case 1:A Middle Eastern petrochemical plant deployed 16 8851-LC-MT controllers to manage safety loops for 8 reactor units.Prior to installation,manual safety checks caused 2-hour weekly downtime,and a 2024 gas leak went undetected for 15 minutes(costing
300kinfines).Thecontrollers’25msresponsetimedetectedasubsequentpressurereliefvalvefaultin18ms,triggeringanautomaticshutdown.HARTintegrationenabledremotemonitoringofsafetyvalves,cuttingweeklydowntimeto15minutes.Theplant’soperationsdirectornoted:“Thiscontrollerisn’tjustcompliant—it’saproductivitytool.We’vesaved
1.2M annually in downtime and penalties.”
Case 2:A U.S.pharmaceutical manufacturer integrated 8851-LC-MT into its sterile filling line safety system.The facility’s Class 1 Div 2 zones required explosion-proof maintenance,which previously took 4 hours per controller swap.The 8851-LC-MT’s hot-swappable design reduced swaps to 15 minutes,and its 8000-event log simplified FDA audits by providing tamper-proof safety records.The manufacturer reduced compliance costs by$80k/year and passed its 2025 FDA inspection with zero findings.
Related Product Combination Solutions
GE 8913-PS-AC:AC-DC power supply–Provides stable 24V DC for 8851-LC-MT.
GE 8890-I/O-16:Digital I/O module–Expands 8851-LC-MT’s I/O capacity to 64 points.
GE Safety View Software:Configuration tool–Programs 8851-LC-MT via ladder logic/structured text.
GE 90-30 PLC:Main controller–Integrates with 8851-LC-MT for hybrid safety/standard control.
Banner EZ-SCREEN:Light curtain–Triggers 8851-LC-MT emergency stops for machine guarding.
ProSoft MVI56E-MBTCP:Gateway–Enhances 8851-LC-MT’s Modbus TCP connectivity.
GE 140CPS12420:Redundant power supply–Ensures uninterrupted power for 8851-LC-MT loops.
HART 475 Communicator:Diagnostic tool–Monitors 8851-LC-MT-connected process variables.
Installation,Maintenance,and Full-Cycle Support
Installation of 8851-LC-MT follows safety-critical best practices:first,verify Class 1 Div 2/Zone 2 compliance of the installation area;mount the module on a DIN rail(232mm×69mm footprint)and connect redundant Ethernet and RS-485 cables;wire I/O to safety loops(e.g.,E-stop buttons,interlocks)and power with 24V DC(18.5–36V range).Use GE Safety View Software to program logic(ladder/structured text)and configure redundancy(auto-switchover for dual controllers).Commissioning takes~4 hours per module,with mandatory SIL verification.
Maintenance is streamlined via proactive diagnostics:the controller logs 8000 events(faults,activations)for root-cause analysis.Weekly checks include Ethernet link status(LED indicators)and HART variable verification.Hot-swapping failed modules requires no system shutdown—simply press the”standby”button on the redundant unit and replace the faulted module.GE provides a 12-month warranty,with 24/7 global support and regional spare parts stock(next-day delivery for critical failures).
Call to Action
If your facility needs SIL 2-certified safety control,zero-downtime redundancy,or seamless integration with existing automation systems,the GE Fanuc 8851-LC-MT delivers the compliance and reliability required for critical operations.Contact us today for a free safety loop assessment,configuration demo,or bulk pricing quote—our team will help you build a fault-tolerant safety infrastructure that protects people,equipment,and productivity.
选择深圳长欣，选择放心，售后无忧 大量现货，当天顺丰发货！！！
