I/O modules

Product Overview

The Yokogawa ALE111-S51 Ethernet Communication Module provides high-speed data connectivity between a Field Control Station (FCS) and subsystems such as FA-M3, Modbus, MELSEC, YFGW, and other controllers. It is designed for use with Yokogawa’s Field I/O (FIO) system, enabling efficient Ethernet-based communication for distributed control systems (DCS).

Moreover, the module ensures stable 10BASE-T Ethernet communication with consistent data integrity across critical industrial networks. It can be mounted on various field control and bus node units, including AFV30, AFV40, AFV10, AFF50, ANB10, ANB11, and ANR10, offering broad system compatibility and flexibility.

Functional Highlights

• Stable Ethernet Connectivity: Supports IEEE 802.3 10BASE-T half-duplex transmission for consistent data exchange.
• Flexible Integration: Compatible with multiple FCS models in the AFV, AFS, AFG, and AFF series.
• Robust Communication Protocols: Interfaces with Modbus, FA-M3, MELSEC, YFGW, DARWIN/DAQSTATION, and PLC-5/SLC500.
• Long-Distance Transmission: Up to 100 meters over 100-ohm unshielded twisted-pair cables ensures reliable subsystem connections.
• Low Power Consumption: Requires only 0.5 A, reducing system energy demand and heat generation.

In addition, the ALE111-S51 is designed for single-function operation, meaning it performs one communication protocol at a time, ensuring maximum stability and predictable network performance.

Technical Data

The ALE111-S51 supports seamless integration with LFS1700, LFS1500, LFS1300, LFS1330, and LFS1350 control software, ensuring compatibility across Yokogawa’s CENTUM VP and STARDOM control platforms.

System Integration & Applications

The ALE111-S51 module is widely used in distributed control environments where stable and secure communication between field devices and control systems is essential.

Typical Applications Include:

• Integration of FA-M3 PLCs with Yokogawa FCS systems.
• Ethernet communication between process controllers and data acquisition systems.
• Power generation and petrochemical plants requiring high-speed subsystem communication.
• Factory automation and remote monitoring networks over Modbus or MELSEC protocols.

Therefore, the ALE111-S51 enhances network performance, ensures flexible protocol communication, and minimizes engineering effort in multi-protocol control setups.

FAQ

Q1: Can the Yokogawa ALE111-S51 support multiple communication protocols simultaneously?
No. Each module handles one communication function at a time for stability. However, multiple ALE111-S51 modules can be installed to handle different protocols in parallel.

Q2: What is the maximum cable length between the FCS and subsystem?
The maximum distance is 100 meters when using a 100-ohm unshielded twisted-pair cable, ensuring reliable Ethernet communication.

Q3: What are the availability and warranty details?
All Yokogawa ALE111-S51 modules are 100% brand-new and original, in stock, and ship via DHL, FedEx, or UPS within 3 days to 2 weeks, depending on order size. Each unit includes a 30-day return policy for verified quality issues.

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