Yokogawa ALE111-S50 Ethernet Communication Module

Hardware Specifications

Process Control Communication Interface Characteristics

The ALE111-S50 S1 provides Ethernet communication between Yokogawa field control stations and external subsystems through IEEE802.3 10BASE-T physical interfaces. Moreover, the module supports point-to-point Ethernet connections using 100 ohm twisted-pair cables for data transmission within the control network.

The module integrates with CENTUM VP and FIO architectures to exchange process data, diagnostic information, and device communication signals. In addition, the dual Ethernet port configuration allows network topology flexibility for systems requiring separated communication paths.

For Yokogawa process control applications, the communication interface design supports integration with subsystem controllers, PLC devices, and intelligent field equipment. Therefore, the ALE111-S50 S1 functions as an Ethernet communication node between control stations and external automation equipment.

4-20 mA HART and Process Network Integration Features

The ALE111-S50 S1 belongs to Yokogawa process automation hardware platforms that commonly interface with industrial measurement networks and DCS architectures. Furthermore, Yokogawa control systems using this module family support integration with process instrumentation protocols, including 4-20 mA HART loop communication through compatible I/O interfaces.

The module itself provides Ethernet-based subsystem communication rather than direct analog signal conditioning. Therefore, channel isolation, cold junction compensation (CJC), and HART signal processing depend on the connected Yokogawa I/O modules and field interface components.

The Ethernet communication path allows the CENTUM VP system to exchange controller data with external devices while maintaining defined network communication parameters, including transmission speed, media access method, and cable specifications.

Frequently Asked Questions

Q: Does the ALE111-S50 S1 support Ethernet communication redundancy?
A: The module provides dual Ethernet ports that can be configured according to the applicable Yokogawa system architecture. The actual redundancy operation depends on the control system configuration and network design.

Q: What Ethernet physical interface does the ALE111-S50 S1 use?
A: The module uses IEEE802.3 10BASE-T Ethernet with a 100 ohm twisted-pair cable transmission route.

Q: Can the ALE111-S50 S1 be installed on Yokogawa FIO hardware?
A: Yes. The module supports installation on compatible FIO-related units, including AFV series field control units, ANB10 ESB bus node units, ANB11 optical ESB bus node units, and ER bus node units.

Field Installation Guidelines

• Install the ALE111-S50 S1 in a compatible Yokogawa field control unit or bus node unit according to the system hardware configuration manual.
• Verify Ethernet cable routing before commissioning to avoid interference from high-voltage power cables and high-current switching devices.
• Use the specified 100 ohm twisted-pair Ethernet cable for network connections.
• Maintain proper cable shielding and grounding practices according to the plant network installation standard.
• Confirm module addressing, communication parameters, and network topology settings before connecting external subsystems.
• Check the controller and bus node power status before inserting or removing the communication module.