Product Description

The ALE111 is a specialized Ethernet communication interface developed by Yokogawa Electric Corporation to bridge Yokogawa control systems with third-party industrial subsystems.

Optimized for the FIO (Field network I/O) architecture, the ALE111 enables reliable Modbus/TCP data exchange between Field Control Stations and devices such as gas chromatographs, PLCs, and power monitors. It meets the ISA G3 environmental standard, featuring a conformal coating that protects against corrosive atmospheric contaminants for long-term stability in harsh processing plants.

The module supports point-to-point or networked connections over TCP/IP, providing deterministic and robust communication in mission-critical industrial applications.

Technical Specifications

Application Scenarios

The ALE111 is ideal for:

• Linking analytical instruments (e.g., GC8000 Gas Chromatographs) to CENTUM VP or STARDOM systems

• Power management systems using Modbus-enabled meters

• Industrial facilities where multiple specialized subsystems require integration under a centralized DCS

It ensures reliable data aggregation and deterministic communication for process monitoring and control.

Industrial FAQ

Does the ALE111 support 100 Mbps or 1 Gbps speeds?
No. The ALE111 is a dedicated 10BASE-T (10 Mbps) module. For higher bandwidth, consider ALE111-S50 or Vnet/IP-compatible modules.

Can the ALE111 be configured for redundancy?
Yes. Two ALE111 units can be installed to provide redundant communication paths within the CENTUM or STARDOM framework, improving system fault tolerance.

Is shielded cable required?
Unshielded twisted-pair (UTP) Cat5 or higher is acceptable, but in high-EMI environments, using quality Cat5e or Cat6 cables is recommended to maintain signal integrity.