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SKU:1734-485ASC

Allen-Bradley 1734-485ASC RS485 Communication Module 24VDC

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  • Manufacturer: Allen-Bradley

  • Product No.: 1734-485ASC

  • Product Type: Communication Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 100g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Penerangan

Allen-Bradley 1734-485ASC POINT I/O Serial Interface Module

The Allen-Bradley 1734-485ASC is a POINT I/O serial interface module supporting RS-485 and RS-422 industrial networks. Designed for connecting ASCII devices, this module provides reliable serial communication in industrial automation systems. Operating on 10-28.8 V DC (nominal 24 V DC), it draws 15 mA supply current. Weighing approximately 0.1 kg (0.22 lbs), it features keyswitch position 2 for wiring base compatibility.

Technical Specifications

Parameter Value
Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number 1734-485ASC
Product Family 1734 POINT I/O
Module Type Serial Interface Module
Network Support RS-485 (2-wire) or RS-422 (4-wire)
Keyswitch Position 2
External DC Voltage 10-28.8 V DC (Nominal 24 V DC)
Supply Current 15 mA @ 24 V DC
Weight Approx. 0.1 kg (0.22 lbs)
UPC 10612598283702

Network Wiring & Grounding Guide

  • Use shielded cables to reduce electrical noise. Ground the shield at one end only (DIN rail side).
  • Chassis ground connection is not available on the 1734-485ASC terminal block. Ground at the DIN rail instead.
  • For RS-485: Use 2-wire connection (Data A, Data B) with termination resistors at both ends.
  • For RS-422: Use 4-wire connection (TX+, TX-, RX+, RX-) for full-duplex communication.

Installation & Field Application Guide

  • Mount the module on a compatible wiring base (1734-TB series).
  • Set keyswitch position to 2 before installation.
  • Connect RS-485 or RS-422 devices using the appropriate terminal block connections.
  • Configure buffer sizes (default 20/20 bytes) and I/O message size as required.

Why Choose the 1734-485ASC

  • Supports both RS-485 and RS-422 networks for flexible integration.
  • Compact POINT I/O form factor saves panel space.
  • Designed for ASCII device communication in industrial environments.
  • Easy DIN rail mounting with removable terminal block.

Field Engineer FAQs

Q1: What is the difference between RS-485 and RS-422 support on this module?

A1: The module supports RS-485 (2-wire, half-duplex) and RS-422 (4-wire, full-duplex) networks. Select the appropriate mode based on your device requirements.

Q2: Where should I ground the cable shield?

A2: Ground the shield at one end only. Connect to the DIN rail (chassis ground) as the terminal block does not provide a ground connection.

Q3: How do I configure buffer sizes for the module?

A3: Default buffer sizes are 20 bytes for both transmit and receive. Modify these in the configuration file if more than 20 bytes is required.

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🏷️ Tags: Communication Module

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