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Product Overview

The Yokogawa ALF111-S50 is a Foundation Fieldbus Communication Module that acts as a Link Active Scheduler (LAS).
It enables efficient data exchange with H1 protocol field devices for automation systems.

Key Features

• Supports 4 ports, each with 1 segment.

• Transmission speed: 31.25 kbps.

• Withstands 1500V AC between field and system.

• Handles up to 32 devices per segment (ALF111 counts as 1).

• Supports dual-redundancy for uninterrupted communication.

• Functions as clock master and LAS for stable performance.

• Supports up to 48 I/O points per segment.

Installation & Design

• Compatible with ANB10, ANB11, AFV30, AFV40, A2FV50, A2FV70 modules.

• Pressure clamp terminals with on/off terminators for easy wiring.

• Compact and lightweight: approx. 0.40 kg.

Power & Safety

• Current consumption: ≤0.5 A.

• 1500V AC isolation between channels and system.

• No explosion protection, designed for basic applications.

The ALF111-S50 ensures reliable and flexible communication for Foundation Fieldbus-based automation networks.

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