Our Products

Comprehensive industrial automation solutions for global industries

Home / Yokogawa / Yokogawa ALR121
Product Categories
Product Categories

Contact us

If you are interested in our products and want to know more details,please Contact us,we will reply you as soon as we can.

Contact Support
Yokogawa ALR121 Serial Communication Module
Yokogawa ALR121 Serial Communication Module
Yokogawa ALR121 Serial Communication Module
Yokogawa ALR121 Serial Communication Module
Popular Product

Yokogawa ALR121 Serial Communication Module


Manufacturer:Yokogawa

Product Number:ALR121

Product Type:Serial Communication Module

Origin:Japan

Dimensions:126.7 × 32.8 × 130 mm

Weight:0.3kg

Views:56

Payment Methods:T/T, PayPal, Western Union

Condition:New & In Stock

Warranty:1 Year

Lead Time:1-3 Working Days

Certificate:COO

Courier partners:DHL, UPS, TNT, FedEx and EMS.

Business hours:7*24

Product Description

The Yokogawa ALR121 Serial Communication Module is a high-performance module designed for field control stations (FCS) to establish serial communication with subsystems like FA-M3, YS series, and PLCs. It supports RS-422 and RS-485 interfaces and provides reliable, half-duplex, start-stop synchronized communication, making it suitable for industrial automation environments.

Technical Specifications

Parameter Specification
Model ALR121
Interface RS-422 / RS-485
Communication Method Point-to-point (RS-422) / Multipoint (RS-485)
Transmission Speed 1200–38400 bps (depending on subsystem)
Communication Function Half-duplex, start-stop synchronization
Transmission Distance Up to 1200 m
Dimensions 126.7 × 32.8 × 130 mm
Weight 0.3 kg
Power Consumption 0.5 A
Mounting ANB10, ANB11, ANR10, AFF50, AFV10, AFV30, AFV40
Ports 2 ports (same function per module)
Supported Protocols FA-M3, Modbus, MELSEC-A, YS, SLC500, PLC-5
Synchronization Start-stop

Applications

  • Integration of FCS with FA-M3 PLC systems

  • Communication with YS1000 and YS100 series controllers

  • Modbus-compatible subsystem integration

  • Data exchange with MELSEC-A series PLCs

  • Connection to Rockwell SLC500 and PLC-5 systems

  • Ideal for process automation and distributed control systems

Advantages

  • Supports both RS-422 and RS-485 for flexible connections

  • Long transmission distance up to 1200 m

  • Dual-redundant operation capability for enhanced reliability

  • Supports a wide range of industrial protocols

  • Compact and lightweight design

  • Easy installation on various Yokogawa node units

FAQs

Q1: What interfaces does the ALR121 support?

A1: The ALR121 supports RS-422 and RS-485 interfaces.

Q2: Can the ALR121 operate in a redundant configuration?

A2: Yes, it supports dual-redundant configurations for high reliability.

Q3: What is the maximum transmission distance?

A3: The maximum transmission distance is 1200 meters.

Q4: How many ports are available on the ALR121?

A4: It has two ports, both configured with the same communication function.

Q5: Which protocols are compatible with the ALR121?

A5: It supports FA-M3, Modbus, MELSEC-A, YS series, SLC500, and PLC-5 protocols.

Q6: What is the power consumption of the ALR121?

A6: The ALR121 consumes 0.5 A of current.

Q7: Which Yokogawa units can the ALR121 be installed on?

A7: It can be mounted on ANB10, ANB11, ANR10, AFF50, AFV10, AFV30, and AFV40.

Q8: What is the weight of the ALR121?

A8: The module weighs 0.3 kg.

Q9: What is the size of the ALR121?

A9: Its dimensions are 126.7 × 32.8 × 130 mm.

Q10: Does it support multipoint communication?

A10: Yes, it supports multipoint communication in RS-485 mode.

Popular Product

Yokogawa ALR121 Serial Communication Module

Manufacturer:Yokogawa

Product Number:ALR121

Product Type:Serial Communication Module

Origin:Japan

Dimensions:126.7 × 32.8 × 130 mm

Weight:0.3kg

Views:56

Payment Methods:T/T, PayPal, Western Union

Condition:New & In Stock

Warranty:1 Year

Lead Time:1-3 Working Days

Certificate:COO

Courier partners:DHL, UPS, TNT, FedEx and EMS.

Business hours:7*24

Product Description

The Yokogawa ALR121 Serial Communication Module is a high-performance module designed for field control stations (FCS) to establish serial communication with subsystems like FA-M3, YS series, and PLCs. It supports RS-422 and RS-485 interfaces and provides reliable, half-duplex, start-stop synchronized communication, making it suitable for industrial automation environments.

Technical Specifications

Parameter Specification
Model ALR121
Interface RS-422 / RS-485
Communication Method Point-to-point (RS-422) / Multipoint (RS-485)
Transmission Speed 1200–38400 bps (depending on subsystem)
Communication Function Half-duplex, start-stop synchronization
Transmission Distance Up to 1200 m
Dimensions 126.7 × 32.8 × 130 mm
Weight 0.3 kg
Power Consumption 0.5 A
Mounting ANB10, ANB11, ANR10, AFF50, AFV10, AFV30, AFV40
Ports 2 ports (same function per module)
Supported Protocols FA-M3, Modbus, MELSEC-A, YS, SLC500, PLC-5
Synchronization Start-stop

Applications

  • Integration of FCS with FA-M3 PLC systems

  • Communication with YS1000 and YS100 series controllers

  • Modbus-compatible subsystem integration

  • Data exchange with MELSEC-A series PLCs

  • Connection to Rockwell SLC500 and PLC-5 systems

  • Ideal for process automation and distributed control systems

Advantages

  • Supports both RS-422 and RS-485 for flexible connections

  • Long transmission distance up to 1200 m

  • Dual-redundant operation capability for enhanced reliability

  • Supports a wide range of industrial protocols

  • Compact and lightweight design

  • Easy installation on various Yokogawa node units

FAQs

Q1: What interfaces does the ALR121 support?

A1: The ALR121 supports RS-422 and RS-485 interfaces.

Q2: Can the ALR121 operate in a redundant configuration?

A2: Yes, it supports dual-redundant configurations for high reliability.

Q3: What is the maximum transmission distance?

A3: The maximum transmission distance is 1200 meters.

Q4: How many ports are available on the ALR121?

A4: It has two ports, both configured with the same communication function.

Q5: Which protocols are compatible with the ALR121?

A5: It supports FA-M3, Modbus, MELSEC-A, YS series, SLC500, and PLC-5 protocols.

Q6: What is the power consumption of the ALR121?

A6: The ALR121 consumes 0.5 A of current.

Q7: Which Yokogawa units can the ALR121 be installed on?

A7: It can be mounted on ANB10, ANB11, ANR10, AFF50, AFV10, AFV30, and AFV40.

Q8: What is the weight of the ALR121?

A8: The module weighs 0.3 kg.

Q9: What is the size of the ALR121?

A9: Its dimensions are 126.7 × 32.8 × 130 mm.

Q10: Does it support multipoint communication?

A10: Yes, it supports multipoint communication in RS-485 mode.

Related Products

Need a Custom Automation Solution?

Our team of experts can design and implement a tailored automation system to meet your specific requirements.