Yokogawa ALR121-S00 RS422 RS485 Transmitter Module

Price Negotiable

Price: negotiable

MOQ: 1pc

Delivery Time: on request

Brand: YOKOGAWA

Product Description

RS422 RS485 YOKOGAWA Transmitter Module ALR121-S00

Product Specifications

Manufacturers	Yokogawa
Interface	RS-422/RS-485 (4-wire system)
Connection method	Point-to-point (RS-422) Multipoint (RS-485)
Communication function	Half-duplex
Synchronization method	Start-stop synchronization
Transmission distance	Maximum 1200 m (total extended length)
Current consumption	0.5 A
Weight	Approx. 0.34 kg

Product Description

The YOKOGAWA RS422/RS485 Module ALR121-S00 is part of the ALR111 and ALR121 Serial Communication Modules series designed for use with safety control stations (SCS) to perform Modbus communication.

Key Features

Enables data setting and reference in SCS via Modbus master from separate systems
Allows subsystem data handling from sequencers using SCS's subsystem communication function
Compatible with safety control units and safety node units
Interference-free design that doesn't affect safety loops

Technical Specifications

Item	Specifications
Model	ALR121
Interface	RS-422/RS-485 (4-wire system)
Connection method	Point-to-point (RS-422) Multipoint (RS-485)
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 to 8 bit on the Modbus slave communication function and the subsystem communication function)
Stop bit length	1/2 bits (Fixed to 1 bit on the subsystem communication function)
Parity check	None/even/odd
Lag time after data transmission	1 ms
Transmission distance	Maximum 1200 m (total extended length)
Installation method	Mounted on S2SC70, SSC60, SSC50, SSC57, or SNB10D
I/O wiring	Cable with 3-pair shield, AKB161, or AKB162
Wiring connection	Clamped with terminal block's M4 screws (5 poles × 2 ports)
Communication function	Modbus slave communication function, subsystem communication function
Current consumption	0.5 A
Weight	Approx. 0.34 kg

Note: A unit of SCS is capable of handling multiple communication functions; however, different types of communication functions cannot be simultaneously performed on a serial communication module. Both ports must have identical communication functions.

Related Part Numbers

AAI135-S00

AAI143-H00

AAI143-H53

AAI143-S50

AAI543-S00

AAI835-H00

AAI835-H00/K4A00

AAI835-S00

AAI835-S50

AAM51

AAT145-S00