OVERVIEW

Official designation: Allen-Bradley 1794-ASB2 (Flex I/O, Remote I/O Adapter)

Connects the Flex I/O system, capable of supporting up to 8 I/O modules, to a Remote I/O network for distributed control using 24V DC power.

KEY SPECS SUMMARY

Power: 330 mA @ 24V DC

Interfaces / Ports: RIO and FlexBus

Indicators: 3 status LEDs

Operating Temp: 0 to 55 degrees C

Platform / Compatibility: Flex I/O / RIO

Limit: 800 mA FlexBus capacity

Lifecycle: Active

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum 5V DC FlexBus current that the adapter supplies to the I/O modules?

A: The 1794-ASB2 module supplies a maximum of 800 mA to the attached Flex I/O modules.

Wiring & Installation:

Q: What type of connector is used on the adapter for connection to the Remote I/O network?

A: The RIO network connection utilizes a standard 9-pin D-shell connector.

Troubleshooting & Compatibility:

Q: How many I/O modules can the 1794-ASB2 adapter physically support on the FlexBus backplane?

A: The adapter has the physical capability to support a maximum of 8 adjacent I/O modules.

Replacement & Upgrades:

Q: Is the 1794-ASB2 adapter compatible with all 1794 series Digital and Analog modules?

A: Yes, it is compatible with all standard 1794 Digital, Analog, and Specialty I/O modules.