Allen Bradley 1791-24A8 Remote I/O compatible module

The 1791-24A8 is a Remote I/O compatible module. This module is a Discrete I/O block that is manufactured by Allen-Bradley. It has a compact and self-contained assembly with built-in Remote I/O interface in adapter mode, Power supply and embedded input and output channels.

The 1794-24A8 connects to a PLC2, PLC3 and PLC5 controller family via the embedded RIO interface. This built-in interface must be configured as a Remote I/O scanner. Similarly, the 1791-24A8 may be used with SLC500 controller via the 1747-SN Remote I/O scanner.

This module features embedded channels composed of Twenty-Four (24) 120VAC input channels with input voltage range of 79-132VAC. It also has Eight (8) 120VAC output channels with output voltage range of 20-132VAC.

Th 1791-24A8 supports standard Remote I/O baud rates such as 57.6K, 115.2K and 230.4K baud rate while remote I/O distance that can be covered based on the configured baud rate are10,000 cable-feet for 57.6k; 5000 cable-feet for 115.2K and 2500 cable-feet for 230.4 K.

Technical specifications for 1791-24A8

ManufacturerRockwell Automation

Output Voltage Range20-123VAC

BrandAllen-Bradley

Product Type:Block I/O

No. of Inputs:Twenty-Four (24)

No. of Groups:3 groups of 8

On-state Voltage range:79-132VAC

No of outputs:Eight (8

No. of output Groups:1 group of 8

External Power, Voltage:85-132VAC

External Power, Current:150 mA

Mounting:Vertical / Horizontal

Power Dissipation, maximum:18.76 Watts

Thermal Dissipation, maximum:63.97 BTU/Hr

Part Number/Catalog No.1791-24A8

Voltage120V ac

Inputs per Block24

Input On-state Voltage Range79-132V ac

Input On-state Current12.3mA @ 132V max.

Input Off-state Voltage35V max.

Input Off-state Current2.3mA min.

Outputs per Block8

External Power85-132V ac

Dimensions6.95 x 4.35 x 3.85 in.

UPC10612598124777

Product Lifecycle Status*Discontinued/Obsolete