ABB LD 810HSE EX 3BSE091722R1

It is a very important product in the field of industrial automation, especially in process control and safety systems. It is not a standalone device, but a highly complete, configurable loop controller and monitor module, typically used in ABB’s S800 I/O systems.

1. Core Product Overview

• Product Name: LD 810HSE EX Loop Controller

• Ordering Number / Material Code: 3BSE091722R1

• Manufacturer: ABB

• Product Line: Part of the S800 I/O series within the ABB Freelance and Symphony Plus DCS (Distributed Control System) families.

• Core Function: Serves as a high-reliability single-loop controller for implementing complex control strategies (e.g., PID control) and provides safety monitoring functions.

2. Key Features & Characteristics

• High Integrity & Fault Tolerance:

  • This is the module’s most prominent feature. Its “H” rating signifies High Integrity and Fault Tolerance. The module contains two independent processors running in a “hot standby” redundant configuration. If one processor fails, the other seamlessly takes over control, significantly enhancing system availability and safety.

• Intrinsically Safe Certification (EX):

  • The “EX” in the model name indicates it is designed for use in hazardous areas, complying with intrinsic safety standards. It can be installed in environments with potentially explosive atmospheres (e.g., oil & gas, chemical industries) and connect to intrinsically safe field sensors and actuators.

• Powerful Control Capabilities:

  • As a loop controller, it can independently execute complex control algorithms, most typically PID control. It can control field devices like valves, variable frequency drives, and heaters to maintain a process variable (e.g., temperature, pressure, flow) at a setpoint.

• Integration into S800 I/O System:

  • It must be installed in an ABB S800 I/O station (e.g., Base Module 3BSE091721R1). It communicates with higher-level controllers (like AC 800M) or engineering stations via fieldbus networks such as Profibus DP or Foundation Fieldbus HSE.

• Configurability:

  • Its control logic and functionality are not fixed. It requires configuration and programming using ABB’s engineering software (e.g., Control Builder M or Symphony Harmony) to meet specific application requirements.

3. Typical Applications

Due to its high reliability and intrinsic safety, the LD 810HSE EX is widely used in industries with stringent safety and continuity demands:

• Oil & Gas: Critical process control on offshore platforms, in refineries, and along pipelines.

• Chemical & Petrochemical: Reactor temperature control, pressure vessel safety monitoring, handling of flammable/explosive chemicals.

• Power Generation: Boiler control, turbine auxiliary system control.

• Pharmaceutical: Batch processes requiring high reliability and strict regulatory compliance.

• Other Process Industries: Any application requiring single-loop, high-reliability control in hazardous environments.

4. Role within a Control System

In a typical DCS hierarchy, its role is as follows:

1. Field Level: Sensors (e.g., thermocouples, pressure transmitters) and actuators (e.g., control valves) are connected to intrinsic safety barriers.

2. I/O Level: The safety barriers are wired to the S800 I/O station housing the LD 810HSE EX module.

3. Control Level: The LD 810HSE EX module executes the pre-configured control logic and exchanges data with a higher-level Process Controller (e.g., AC 800M) over a fieldbus network (e.g., Profibus).

4. Supervisory Level: Operators monitor and control the entire process from the control room via a Human-Machine Interface (HMI), with all data being acquired and output through I/O modules like the LD 810HSE EX.

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