Yokogawa ALR121-S01 ALR121 Serial Communication Module — industrial automation module front view

Yokogawa

Yokogawa ALR121-S01 ALR121 Serial Communication Module

SKU: ALR121-S01 In Stock

Yokogawa

Genuine Yokogawa ALR121-S01. Communication Module. Factory-tested, 48h burn-in. 12-month warranty.

Technical Specifications

ALR121-S01	module offers two serial communication ports, one for RS-422 and one for RS-485, enabling Modbus communication. This allows data in the Safety Control Station (SCS) to be accessed or modified by a Modbus master system, which operates independently from the SCS.
Interface	RS-422/RS-485 (4-wire system)
Connection Method	:
Communication Function	Half-duplex
Synchronization Method	Start-stop synchronization
Transmission Speed	1200/2400/4800/9600/19200/38400 bps
Transmission Code	Binary
Character Length	8 bits (fixed on Modbus slave communication and subsystem communication functions)
Stop Bit Length	1/2 bits (fixed to 1 bit for subsystem communication)
Parity Check	None/even/odd
Lag Time After Data Transmission	1 ms
Transmission Distance	:
Installation Method	Mounted on S2SC70S, SSC60S, SSC50S, SSC57S, or SNB10D
I/O Wiring	:
Communication Functions	Modbus slave communication function, subsystem communication function
Current Consumption	0.5 A
Weight	Approx. 0.34 kg
Manufacturer	Yokogawa
Model / SKU	ALR121-S01

Request a Quote — ALR121-S01

Ships within 24 hours | 12-Month Warranty | Worldwide Delivery

Category: safety systems communication network modules all communication modules yokogawa

Yokogawa ALR121-S01 — Functionally Tested

This Yokogawa ALR121-S01 ALR121 Serial Communication Module is a communication module for Yokogawa systems. Interface: RS-422/RS-485 (4-wire system); Connection Method: :. Live-rack verified with 48h burn-in at 55°C. Printed test report. Genuine Yokogawa. 12-month warranty. Ships within 24h.

Compatible Parts — Same System

These modules share the same system family as the ALR121-S01. Commonly ordered together for complete rack builds or spare parts kits.

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