1794-ASB2 Allen-Bradley Flex I/O Remote Adapter 24V DC 2-Module

1794-ASB2 Allen-Bradley Flex I/O Remote Adapter – 2-Module Capacity, 24V DC

Technical Specifications

• Brand: Allen Bradley
• Model: 1794-ASB2
• Category: PLCs
• Product Line: Flex I/O 1794
• UPC: 612598170890
• Weight: 0.44 lbs (0.20 kg)
• Voltage: 24V DC
• I/O Capacity: 2 Modules
• Input Voltage Range: 19.2–31.2V DC (including 5% AC ripple)
• Communication Rates: 57.6 Kbps, 115.2 Kbps, 230.4 Kbps
• Current Load: 175 mA at 24V DC
• Maximum Current Draws: 450 mA and 330 mA at 24V DC
• Power Consumption: 4.2 W at 24V DC
• Maximum Power Dissipation: 3.4 W at 19.2V DC
• Thermal Dissipation: 11.6 BTU/hr at 19.2V DC
• FlexBus Output Current: 640 mA maximum at 5V DC
• Isolation Voltage: Continuous 50V; type-tested at 750V DC for 60 seconds
• Inrush Surge Current: 23 A for 2 ms per adapter
• Status Indicators: Red/green for power, adapter, and local connection
• Enclosure: Open type; DIN rail or panel mount
• Dimensions: 3.4 x 2.7 x 2.7 inches
• Rating: IP20

Installation Guide

• Mount the adapter on a DIN rail or panel using the open enclosure design.
• Connect a 24V DC power supply that provides 23 A inrush surge current for 2 ms.
• Verify the input voltage stays within 19.2–31.2V DC during operation.
• Attach up to two Flex I/O modules to the adapter's FlexBus output.
• Check red/green status indicators to confirm power, adapter, and local connection states.
• Avoid using this adapter with classic PLC-5/15 and PLC-5/25 processors to prevent remote I/O damage.
• Maintain an IP20 environment free from dust and moisture during installation.

Package Contents

• One Allen-Bradley 1794-ASB2 Flex I/O Remote Adapter
• User documentation for wiring and setup reference
• Protective packaging for safe transit

Shipping Methods

• FedEx for express and standard delivery options
• UPS for reliable domestic and international service
• DHL for global shipping with tracking support

Frequently Asked Questions

• Q: What is the condition of this product?
  A: Every unit is brand new and original from Allen Bradley.
• Q: Do you have stock available?
  A: Yes, we keep this item in stock for immediate order processing.
• Q: How fast do you ship orders?
  A: We dispatch within 5 days after receiving your order confirmation.
• Q: Which logistics carriers do you use?
  A: We ship via common carriers such as DHL, FedEx, and UPS.
• Q: Can I return the product?
  A: Yes, we support returns within 30 days of delivery.
• Q: How many I/O modules does the 1794-ASB2 support?
  A: This adapter supports a maximum of 2 Flex I/O modules only.
• Q: What communication rates does this adapter offer?
  A: It operates at 57.6 Kbps, 115.2 Kbps, and 230.4 Kbps.
• Q: What is the input voltage range?
  A: The range is 19.2–31.2V DC, including 5% AC ripple.
• Q: How much power does this adapter consume?
  A: It consumes 4.2 W at 24V DC with a current load of 175 mA.
• Q: Can I use this with a PLC-5/15 processor?
  A: No, using it with classic PLC-5/15 or PLC-5/25 processors may damage the remote I/O.

Contact Information

• Inquiries: sales@nex-auto.com
• WhatsApp: +86 153 9242 9628
• Partner NexAuto Technology Limited: https://www.nex-auto.com/