Yokogawa ALF111-S01 Foundation Fieldbus Link Active Scheduler

The Yokogawa ALF111-S01 is a critical component designed for seamless communication between field control stations (FCS) and FOUNDATION Fieldbus (H1) compliant devices. It serves as a Link Active Scheduler (LAS), ensuring efficient data exchange in industrial automation systems. This module is essential for maintaining high-speed communication, contributing to the reliability and scalability of process control systems across industries.

Key Specifications of the Yokogawa ALF111-S01 Module

Model: ALF111-S01
Manufacturer: Yokogawa Electric
Power Supply: 24 VDC ±10%
Power Consumption: 4.5 W (max)
Communication Speed: 31.25 kbit/s
Number of H1 Segments: 1
Maximum Number of Fieldbus Devices: 32
Dimensions: 88 mm x 58 mm x 23 mm (W x H x D)
Weight: 150 g

Technical Specifications

Specification	Details
Model Number	ALF111-S01
Manufacturer	Yokogawa Electric
Power Supply	24 VDC ±10%
Power Consumption	4.5 W (max)
Communication Speed	31.25 kbit/s
Number of H1 Segments	1
Max Fieldbus Devices	32
Dimensions	88 mm x 58 mm x 23 mm (W x H x D)
Weight	150 g

Features and Benefits

The Yokogawa is designed with several advanced features that enhance system performance and reliability:

High Reliability: This module ensures stable and efficient communication between field devices and control stations, even in complex industrial environments.
Compact Design: The features a small form factor (88 mm x 58 mm x 23 mm), which simplifies installation and integration into existing control systems.
Dual-Redundancy Support: The supports dual-redundancy, allowing the use of two modules within the same node. This increases system reliability and prevents data loss due to potential device failures.
Compliant with Industry Standards: The ALF111-S01 fully complies with FOUNDATION Fieldbus standards, ensuring compatibility with other H1-compliant devices in industrial automation setups.

Applications

The Yokogawa ALF111-S01 is widely used in a variety of industries, including:

Oil & Gas: For reliable data transmission between remote field devices and control systems in harsh environments.
Chemical and Petrochemical: Ensures robust communication in critical process control systems.
Power Generation: Facilitates high-speed communication in energy production and distribution systems.
Water & Wastewater Treatment: Provides stable and reliable communication for large-scale treatment facilities.
Factory Automation: Connects multiple control devices and sensors to improve operational efficiency.

Installation and Integration

The ALF111-S01 is easy to install, thanks to its compact dimensions and support for FOUNDATION Fieldbus. Its 24 VDC power supply and low power consumption (4.5 W max) make it energy-efficient, ideal for continuous operation in demanding industrial settings.