Overview

The Yokogawa ALR111-S51 Serial Communication Module is designed to provide reliable and flexible serial communication for the FA-M3 PLC platform. It enables seamless data exchange between PLC systems and external devices such as sensors, controllers, and monitoring equipment. Its robust design ensures stable performance in demanding industrial environments. Engineers appreciate its compatibility with multiple communication protocols, while operators benefit from simplified configuration and diagnostic functions. In addition, the module’s compact form factor allows easy installation and integration into existing automation systems.

Technical Data

Typical Applications

• Integration of PLC systems with external sensors and controllers.

• Manufacturing plants requiring serial communication with legacy equipment.

• Energy facilities connecting monitoring devices to central control systems.

• Water treatment plants exchanging data with distributed instrumentation.

• Building automation systems requiring reliable serial communication links.

For instance, the ALR111-S51 is often deployed in production lines where PLCs must communicate with specialized instruments using RS-485. Its flexibility and reliability directly contribute to improved system efficiency and reduced downtime.

FAQ

Q1: Which PLC series is this module compatible with?
A1: It is designed for the Yokogawa FA-M3 PLC platform, ensuring seamless integration.

Q2: What communication protocols are supported?
A2: It supports RS-232C, RS-422A, and RS-485 serial communication standards.

Q3: How many communication ports are available?
A3: The module provides multiple serial channels for flexible connectivity.

Q4: Can it operate in high-temperature environments?
A4: It operates reliably between 0–55 °C, suitable for most industrial conditions.

Q5: Which industries commonly use this module?
A5: It is widely applied in manufacturing, energy, water treatment, and building automation sectors.