Description

Yokogawa ALE111-S53 Ethernet Communication Module

The Yokogawa ALE111-S53, also cataloged as the ALE111 Ethernet Communication Module, operates as a dedicated hardware component for Modbus and DNP3 slave communication within CENTUM VP and CENTUM CS 3000 platforms.

Hardware Specifications

Parameter	Specification
ModelBrand	ALE111-S53
Origin	Yokogawa, Japan
Weight	Approx. 0.3 kg
Dimensions	Module compatible with SSC60, SSC50, SSC57, SNB10D racks
OperatingTemp	0 to 55 degC (standard industrial range)
PowerConsumption	0.5 A at 5 VDC
Interface	IEEE 802.3 10BASE-T, Half-duplex
Connector	RJ-45 (1 port)
TransmissionSpeed	10 Mbps
TransmissionDistance	100 m over 100 ohm twisted pair cable (unshielded)
ConnectionMethod	Point-to-point
MediaAccessControl	CSMA/CD
CommunicationFunctions	Modbus slave, DNP3 slave
NumberOfPorts	1

Channel-to-Channel Isolation

The ALE111-S53 incorporates channel-to-channel isolation to prevent cross-interference between digital communication paths. Isolation is designed to withstand up to 500 V AC, maintaining signal integrity in environments with potential ground loops or EMI from adjacent modules. Cold-junction compensation (CJC) is included for temperature-sensitive devices connected via the module, ensuring accurate analog signal interpretation when used with DCS analog input/output expansions.

Frequently Asked Questions

Q: Can the ALE111-S53 be replaced while the FCS is online?
A: Yes, the module supports hot-swap replacement. Ensure the FCS is in a stable state and communication cables are secured to prevent transient errors during replacement.

Q: What is the maximum segment distance for 10BASE-T communication?
A: The module supports a maximum of 100 m per segment over 100 ohm unshielded twisted pair cable between the module and hub or other network devices.

Q: How many devices can be connected per ALE111-S53 module?
A: Up to 32 subsystem devices can be addressed per module, with a maximum of 4000 words for data input/output.

Field Installation Guidelines

• Mount the ALE111-S53 on approved rack positions (SSC60, SSC50, SSC57, SNB10D) with secure locking.
• Ensure RJ-45 cabling maintains twisted-pair integrity; avoid sharp bends and excessive tension.
• Maintain separation from high-voltage power lines and grounding loops to reduce EMI.
• For redundant configurations, connect identical modules to separate network switches to avoid single points of failure.
• Confirm module insertion orientation and locking mechanism engagement before powering the FCS.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems