ALR111-S51

Overview

ALR111-S51 is a Yokogawa serial communication module for N-IO/FIO systems, providing 2 RS-232C ports with half-duplex communication, start-stop synchronization, and multiple transmission speeds.

Identity

• Model: ALR111

• Type: Serial Communication Module

• Suffix Codes:

  • –S: Standard type

  • 5: With no explosion protection

  • 1: With ISA Standard G3

Communication Characteristics

• Interface: RS-232C (2 ports)

• Connection Method: Point-to-point

• Function: Half-duplex

• Synchronization: Start-stop

• Transmission Speed: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 bps

• Transmission Code: Binary

• Character Length: 8 bits (fixed for Modbus slave and subsystem communication)

• Stop Bit Length: 1 or 2 bits (fixed to 1 bit for subsystem communication)

• Parity Check: None / Even / Odd

• Lag Time After Transmission: 1 ms

• Transmission Distance: Max. 15 m

Mechanical Characteristics

• Weight: Approx. 0.3 kg

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