Brand:Yokogawa Electric Item No.:ALF111-S01 Product Origin:Japan Product Dimensions:130 x 127.5 x 32.8 mm Product Weight:0.4 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The ALF111-S01 is part of Yokogawa’s field communication interface lineup, designed to bridge field-level instruments with central control systems through FOUNDATION Fieldbus technology. It plays a critical role in enabling digital communication between distributed field devices and the DCS.
By reducing wiring complexity and enabling intelligent field device communication, it improves system diagnostics, maintenance efficiency, and operational visibility. It is widely used in process industries where reliable and deterministic communication is essential for safe and efficient plant operation.
Technical Specifications
Parameter
Specification
Product Type
Field Communication Module
Model
ALF111-S01
Protocol
FOUNDATION Fieldbus H1
Communication Speed
31.25 kbps
Function
Field device communication interface
LAS Function
Supported
Redundancy
Supported (dual module configuration)
System Compatibility
Yokogawa FCS / FIO systems
Application
Industrial process automation
Operating Environment
Control systems in process industries
Dimensions
130 × 127.5 × 32.8 mm
Weight
0.4 kg
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Typical Industrial Applications
• Field device integration in FOUNDATION Fieldbus control systems
• Communication interface for transmitters and valve positioners
• Process control systems in chemical and petrochemical plants
• Power generation plant fieldbus communication networks
• Distributed control system (DCS) field-level data exchange
Key Engineering Advantages
• Supports FOUNDATION Fieldbus H1 protocol for standardized field communication
• Enables stable and deterministic real-time data transmission
• Dual-redundancy configuration support improves system availability
• Integrated LAS (Link Active Scheduler) function for network coordination
• High noise immunity ensures reliable operation in industrial environments
• Designed for seamless integration with Yokogawa FCS and FIO architecture
Technical FAQs
1. What is the main function of this module?
It enables communication between field devices and the control system using FOUNDATION Fieldbus.
2. Which protocol does it support?
It supports FOUNDATION Fieldbus H1 communication protocol.
3. What type of devices can it connect to?
It connects transmitters, actuators, and valve positioners.
4. Does it support redundancy?
Yes, it supports dual-redundant module configurations.
5. What is the role of LAS function?
It manages communication timing and scheduling on the fieldbus network.
6. Is it a control module?
No, it is a communication interface module, not a control logic module.
7. What systems is it compatible with?
It is used in Yokogawa FCS and FIO-based distributed control systems.
8. What ensures communication stability?
Deterministic fieldbus protocol and industrial-grade signal processing.
9. Can it operate continuously?
Yes, it is designed for 24/7 industrial operation.
10. Does it require field programming?
No, configuration is handled at system level within the control system.
