PEPPERL+FUCHS LB6116E P:263862 Product Description

Overview

PEPPERL+FUCHS LB6116E (part number 263862) is a 2-channel Ex ia digital output module with independent shutdown input for the Pepperl+Fuchs LB remote I/O system, supporting PROFIBUS DP. It is designed to drive intrinsically safe field devices such as solenoid valves, alarm horns and indicator lights in hazardous areas. The module can be installed in Zone 2 / Class I Div.2 or safe zones, and supports hot-swap replacement under voltage for process plant MRO maintenance.

Features

PEPPERL+FUCHS LB6116E provides two galvanically isolated Ex ia output channels with configurable line fault detection for open circuit and short circuit monitoring. Positive or negative logic can be selected via configuration software. It has a bus-independent safety shutdown input to force outputs off regardless of fieldbus communication status, which is critical for safety interlock sequences. Simulation mode is available for on-site commissioning and channel forcing. Integrated watchdog and continuous self-diagnosis improve system reliability. It carries ATEX and IECEx approvals Ex nA [ia Ga] IIC T4 Gc, [Ex ia Da] IIIC, [Ex ia Ma] I. It connects to the LB rack backplane and exchanges data with the host controller over PROFIBUS DP.

Specs

Brand: PEPPERL+FUCHS Model: LB6116E Part ID: 263862 Product series: LB Remote I/O Product category: 2-channel Ex ia digital output module with shutdown input Fieldbus: PROFIBUS DP Channel count: 2 isolated output channels Open circuit voltage: 23 V Max current limit: 40 mA per channel, 80 mA combined Line fault detection: Configurable ON/OFF Safety feature: Bus-independent shutdown input Certification: ATEX EXA 16 ATEX 0025 X, IECEx EXA 16.0010 X Mounting: LB rack backplane, hot swap capable Protection: IP20 Operating temperature: -20℃ ~ +60℃ Weight: Approx. 150 g

Principle

PEPPERL+FUCHS LB6116E receives output commands from the PROFIBUS master controller via the backplane bus and drives the Ex ia limited-energy outputs to actuate field devices. The line fault circuit continuously checks wiring integrity and reports open/short faults to the PLC. The dedicated shutdown input overrides the bus command and de-energizes outputs immediately when an emergency interlock signal is triggered. The watchdog circuit monitors module health and cuts off outputs on internal failure.

Applications

PEPPERL+FUCHS LB6116E is used for intrinsically safe discrete control in hazardous process environments. Typical applications include chemical plants, refineries, gas processing, pharmaceutical batch systems, and spare replacement for existing Pepperl+Fuchs LB PROFIBUS remote I/O cabinets.