Description

The ABB EL813F is a high-reliability digital output (DO) module designed for integration into ABB’s Symphony® Plus (S+) process automation system, formerly known as Advant OCS. This module provides 16 isolated relay outputs used to control discrete field devices such as solenoid valves, motor starters, alarm horns, pumps, and indicator lights in critical industrial processes. Engineered for robust performance in demanding environments—including power plants, oil & gas facilities, chemical processing, and water treatment plants—the ABB EL813F ensures safe, precise, and fail-safe actuation of final control elements.

Mounted in an RX32xx series I/O chassis, the ABB EL813F connects to the central controller (e.g., AC 800M) via the redundant S+ I/O bus, supporting high-availability system architectures. Each of the 16 output channels is equipped with Form C (SPDT) relay contacts capable of switching AC or DC loads up to 250 V and 5 A, making it suitable for both low-energy signal control and higher-power applications. The module features galvanic isolation between channels and the backplane, protecting the control system from electrical transients, ground loops, and surges. Built-in diagnostics continuously monitor output status and relay health, enabling predictive maintenance and reducing unplanned downtime.

EI813F ABB

Technical Specifications

Main Features and Advantages

The ABB EL813F delivers robust switching performance and system integrity, making it ideal for safety-critical and process-critical applications. Its 16-channel relay output design allows direct control of both AC and DC loads without requiring external interface relays, simplifying system design and reducing panel space.

Key advantages include:

• Galvanic Isolation: Prevents noise and fault propagation from field circuits to the control system.
• Fail-Safe Operation: Relay contacts default to a safe state upon power loss, supporting safety system requirements.
• Integrated Diagnostics: Monitors output status, coil integrity, and short-circuit conditions; reports faults to the DCS for operator awareness.
• Hot-Swappable: Can be replaced online in redundant configurations without shutting down the process.
• HART-Compatible Wiring: Can interface with HART-enabled final elements when used with appropriate signal conditioning.
• Seamless Integration: Fully supported in ABB 800xA engineering and operations environment with automatic module recognition and tag configuration.

Application Field

The ABB EL813F is deployed in a wide range of industrial automation applications:

• Power Generation: Tripping turbine valves, starting emergency oil pumps, activating fire suppression systems.
• Oil & Gas: Controlling ESD (Emergency Shutdown) valves, actuating blowdown systems, enabling pump interlocks.
• Chemical Processing: Initiating batch sequences, enabling reactor isolation, triggering alarm systems.
• Water/Wastewater: Starting pumps, opening/closing valves, activating high-level alarms.
• HVAC & Building Automation: Managing large motor loads and safety interlocks in industrial facilities.

Its ability to switch mixed AC/DC loads and operate reliably in harsh electrical environments makes the ABB EL813F a preferred choice for critical discrete control tasks.

EI813F ABB

Related Products

• ABB EL1801: Digital input module (24 VDC) – often paired with EL813F for status feedback.
• ABB EL2008: Relay output module with different contact configuration.
• ABB EL3020 / EL3040: Analog input modules for process signal acquisition.
• ABB RX3210: I/O chassis for mounting EL813F.
• ABB RX3i32: Power supply unit for RX32xx series.
• ABB RX3i12: S+ I/O Bus Coupler.
• ABB AC 800M: Central controller.
• ABB 800xA: Operator interface and engineering suite.
• ABB SCIL: Signal conditioning and isolation modules.
• ABB Asset Optimization Suite: For predictive maintenance using diagnostic data.