Yokogawa ALE111-SE1 Ethernet Communication Module
A one-port Ethernet communication module for exchanging data between a CENTUM field control station and supported subsystems.
Overview
ALE111-SE1 is a Yokogawa Ethernet communication module used with a subsystem communication package to exchange data between the field control station and devices such as PLCs.
The module installs in documented ESB Bus Node Units, ER Bus Node Units or Compact Field Control Units for FIO. Its Ethernet hardware is 10BASE-T point-to-point, while the actual subsystem protocol and data mapping are established by the installed software package.
Specs
| Manufacturer | Yokogawa Electric Corporation |
|---|---|
| Model | ALE111-SE1 |
| Product Type | Ethernet communication module |
| Network Standard | IEEE 802.3 10BASE-T |
| Topology | Point-to-point |
| Connector | RJ45 |
| Transmission Speed | 10 Mbps |
| Maximum Segment Length | 100 m |
| Cable | 100-ohm unshielded twisted pair |
| Ports | 1 |
| Access Method | CSMA/CD |
| Installation Platforms | Documented ESB Bus Node Unit, ER Bus Node Unit or Compact FCS for FIO |
| Redundancy | Redundant configuration supported under the documented system arrangement |
| Current Consumption | 0.5 A |
| Protocol Boundary | Subsystem communication package is required; protocol capability is not determined by hardware alone |
Features
Dedicated 10BASE-T subsystem link inside the CENTUM FIO architecture.
Single RJ45 point-to-point port with a 100 m segment limit.
Supports redundant module arrangements where the system design permits.
Separates Ethernet hardware identity from the licensed subsystem protocol package.
Applications
- PLC and subsystem integration with a CENTUM field control station.
- ControlLogix or EtherNet/IP communication when the matching Yokogawa package and engineering are installed.
- Replacement of an existing ALE111-SE1 while preserving node, address and mapping records.
Lifecycle
- Export subsystem communication definitions, device maps, polling settings and alarm handling.
- Record slot, partner address, switch or direct-cable arrangement and the exact software package.
- Confirm cable category, 100 m segment limit and redundancy wiring before exchange.
- After installation, verify link state, module diagnostics, data quality, update behavior and failover where configured.
FAQ
Does ALE111-SE1 determine the PLC protocol by itself?
No. The module provides the Ethernet path; the installed Yokogawa subsystem communication package defines the supported protocol and mapping.
What information prevents an ALE111-SE1 integration mismatch?
Provide the FCS and node-unit models, slot, CENTUM release, protocol package, partner device and exported communication definition.
Can ALE111-SE1 connect through any long plant Ethernet route?
The documented interface is 10BASE-T point-to-point with a 100 m segment limit, so the engineered network path must be checked.
How should redundant ALE111-SE1 modules be accepted?
Test both communication paths, switchover behavior, data freshness, alarms and recovery without disturbing the control application.
What should be checked when ALE111-SE1 has link but no useful data?
Review the subsystem package, device addressing, data map, partner configuration and FCS diagnostics rather than replacing hardware immediately.
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