Description

ROCKWELL T8850 is a Trusted product®Field Termination Assembly FTA(Field Termination Assembly FTA)for 40 channel analog or digital output.It is Rockwell Automation Trusted®A key component of the Triple Modular Redundancy(TMR)system,designed specifically for the highest requirements of industrial safety and control applications.

The core function of T8850 is to serve as an interface between the output module of the Trusted TMR system(especially the T8451 analog output module or compatible digital output module)and the field devices that receive output signals(such as control valves,motor starters,indicator lights,alarms,etc.).It provides sturdy and safe wiring terminals for up to 40 output circuits.

This FTA aims to simplify on-site wiring and ensure that control signals can be accurately and safely transmitted from the highly redundant Trusted TMR system to the final control components through its reliable connection mechanism and diagnostic functions.T8850 supports DIN rail installation,with compact size and easy maintenance,suitable for various harsh industrial environments,and is crucial for ensuring the reliability of safety critical operations.

ROCKWELL T8850

technical specifications

Product model:T8850

Manufacturer:Rockwell Automation(ICS Triplex Trusted)®Series)

Product type:Analog or Digital Output Field Termination Assembly FTA

Number of output channels:40 output channels

Compatible module:Rockwell Automation Trusted TMR Analog Output Module T8451(or other compatible digital output modules)

Connection type:2-wire industrial standard field equipment connection

Installation method:Standard DIN rail(TS32 or TS35),can be installed horizontally or vertically

Power Supply:Dual 24 VDC on-site power supply(shared through diodes)

Channel grouping:40 channels are divided into 5 groups,with 8 independent channels in each group

Communication:Communicate with output module through SmartSlot connector

Indicator light:onboard green LED indicator light,displaying the on-site power status of each power pack

Output signal type:analog(such as 4-20mA)or digital(depending on the connected output module)

Working temperature:0°C to 60°C(32°F to 140°F)

Non operating temperature:-25°C to+70°C(-13°F to+158°F)

Relative humidity:5%to 95%RH(non condensing)

Anti vibration:IEC 60068-2-6:2008(Test Fc,Operating)5 to 8.4 Hz,3.5 mm;8.4 to 150 Hz,1g

Impact resistance:IEC 60068-2-27:2009(Test Ea,Operating)15 g,11 ms

Electromagnetic compatibility(EMC):Complies with CISPR 11 Class A(radiated and conducted emissions),IEC 61000-4-2/3/4/5/6(immunity)

Certification:CE,UL

Main features and advantages

The ROCKWELL T8850 40 channel analog or digital output FTA module,as an important component of the Trusted TMR system,has the following significant characteristics and advantages:

High density output channels:Provides 40 output channels,enabling control of a large number of field devices on a single compact module,effectively saving control cabinet space and optimizing system wiring.

High flexibility(analog/digital):It can support both analog output(such as controlling valve opening)and digital output(such as switch actuators and indicator lights),providing high flexibility for various industrial control needs.

Enhanced system reliability and security:As part of the Trusted TMR system,T8850 works in conjunction with the TMR output module to provide a reliable output interface for high integrity security systems.The redundant on-site power input and internal isolation design further enhance the robustness and fault tolerance of the system.

Simplify on-site wiring and maintenance:FTA design allows on-site devices to be directly connected to terminal boards,greatly simplifying the on-site wiring process.The standard DIN rail installation and modular design make installation,debugging,and daily maintenance more convenient.

Intelligent connection and hot plug support:Through SmartSlot connection,T8850 supports”one to many”hot plug replacement of its matching output modules,which means that modules can be replaced while the system is running,minimizing production downtime.

Clear diagnostic indicators:The onboard LED indicator lights can visually display the integrity of the on-site power supply,helping operators quickly identify power issues and facilitate troubleshooting.

Adapting to harsh industrial environments:The module design is sturdy and durable,with a wide operating temperature range and high resistance to vibration,impact,and electromagnetic interference,ensuring long-term stable operation even in harsh industrial environments.

ROCKWELL T8850

application area

ROCKWELL T8850 40 channel analog or digital output FTA is widely used in industrial fields with extremely high requirements for safety,reliability,and availability.As a key component of the Rockwell Automation Trusted TMR system:

ESD Emergency Shutdown Systems:Used in industries such as oil and gas,chemical,and petrochemical to safely execute emergency shutdown instructions,such as closing safety valves,cutting off power,etc.,to prevent accidents from escalating.

F&G-Fire&Gas Systems:receive instructions from the safety controller,activate the fire pump,foam extinguishing system,alarm,etc.to deal with fire or gas leakage.

Critical Process Control System(PCS):sends precise analog control signals to actuators such as control valves,pumps,and fans to achieve precise control of key process parameters such as flow rate,pressure,and temperature.

Electricity production and power plants:safety control and protection systems used for gas turbines,steam turbines,boilers,and other auxiliary equipment,executing various switch and analog control commands.

Chemical and petrochemical industries:Control valves,pumps,heaters,etc.in complex chemical production processes to ensure safe operation of the process flow and product quality.

Pharmaceutical and Life Sciences:Used for precise output control of key process parameters in production environments that comply with GMP(Good Manufacturing Practice)and FDA(Food and Drug Administration)requirements.

Rail transit:In railway signaling and control systems,it is used to control safety related actuators such as turnouts,signal lights,and train braking.

Other high-risk and critical infrastructure:Any field that requires high integrity safety systems to monitor and precisely control on-site outputs,such as water treatment,nuclear facilities,large machinery safety,etc.

Related products

The products closely related to the ROCKWELL T8850 40 channel analog or digital output FTA are mainly other core components of the Rockwell Automation Trusted TMR system,as well as the field devices used in conjunction with it:

Trusted TMR Analog Output Module(T8451):This is an analog output module directly connected to T8850,responsible for receiving instructions from the TMR controller and outputting analog signals to T8850 FTA.

Trusted TMR Digital Output Module(T8461):If T8850 is used for digital output,it will be used in conjunction with T8461 or other compatible digital output modules.

Trusted TMR Processor:such as T8110,T8151B,etc.,they are the core of the Trusted TMR system,executing redundant control logic and generating output instructions.

Trusted TMR System Rack and Power Supply:A rack and power supply module used for installing Trusted TMR modules and providing system power.

Trusted special cables(FTA cables):such as TC-201,TC-203,TC-501 or TC-503,used to connect T8850 FTA with its matching output module.

Trusted programming and diagnostic software:a specialized software tool used for configuring,programming,diagnosing,and maintaining Trusted TMR systems.

On site actuators and control equipment:various devices that receive analog signals(such as pneumatic valve positioners,frequency converters)or digital signals(such as contactors,relays,solenoid valves,indicator lights,alarms).

ROCKWELL T8850

Installation and maintenance

Preparation before installation:

Refer to the official manual:Before installing the ROCKWELL T8850,be sure to carefully read the product manual(PD-T8850)provided by Rockwell Automation and the relevant installation guide for the Trusted TMR system.Understand its physical dimensions,installation requirements,electrical connection diagram,environmental restrictions,and safety precautions.

Safe power outage:Ensure that all relevant equipment and power sources are completely disconnected,and strictly follow the lockout/tagout(LOTO)procedure to prevent accidental electric shock or equipment start-up.

ESD protection:T8850 is an electrostatic sensitive component.When handling modules,be sure to wear anti-static wristbands and gloves,and operate on an anti-static workbench to avoid direct contact with the conductive areas of the module.

Environmental conditions:Confirm that the temperature,humidity,vibration,and electromagnetic compatibility of the installation environment meet the technical specifications of the module.Ensure that there is sufficient space for heat dissipation inside the control cabinet and avoid direct sunlight,humidity,corrosive gases,or strong electromagnetic interference.

Physical installation and wiring:

Securely install T8850 FTA on TS32 or TS35 DIN rail.

According to the wiring diagram in the manual,correctly connect the 40 output circuits(2-wire system)from the on-site actuator.

Connect the dual 24 VDC on-site power supply to the FTA power terminal block.

Use a dedicated SmartSlot cable to connect the T8850 FTA to its matching output module(such as T8451 or T8461).

Ensure that all wiring is secure and reliable,and comply with cable management and grounding standards.

Maintenance suggestion:

Regular inspection:Regularly inspect the physical condition of the T8850 module,including connection terminals,cables,and housing,to ensure that there is no looseness,corrosion,or physical damage.

Cleaning:Keep FTA and control cabinet interior clean,remove dust and pollutants to prevent poor heat dissipation and electrical faults.

LED indicator light monitoring:Regularly observe the LED indicator lights on T8850,which will display the status of the on-site power supply and help quickly identify power supply issues.

System diagnosis:Utilize the diagnostic tools and software of the Trusted TMR system to regularly check the status and alarm information of the output channels related to T8850,in order to promptly identify and resolve potential on-site equipment or wiring issues.

Functional testing:According to safety standards and manufacturer recommendations,regularly conduct proof tests on the safety functions connected to T8850 to verify the integrity of the entire safety circuit.

Spare parts management:Maintain appropriate spare parts inventory,such as spare T8850 FTA or related cables,for quick replacement when needed,reducing downtime.

Professional maintenance:Any repair,replacement,or complex fault diagnosis involving internal components of modules should be carried out by technicians authorized or professionally trained by Rockwell Automation to ensure the correctness of operations and the safety and reliability of the system.

Product Guarantee

We provide a solid product guarantee for the excellent quality and reliable performance of the ROCKWELL T8850 40 channel analog or digital output FTA in safety critical applications.