1791-24A8 - In Stock | Allen Bradley PLC 1791 Block I/O

1791-24A8

Rated 4.5 with 27 reviews

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


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1791-24A8

Revisions: Ser A Ser B 
Description: The Allen-Bradley 1791-24A8 is a block I/O module. This module has Twenty-Four (24) 120VAC input channels and Eight (8) 120 VAC outputs. This module comes with a power supply, PLC interface, I/O connections and signal processing and conditioning circuitry. This device is ideally used for implementation of Remote I/O architecture.
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Description: The Allen-Bradley 1791-24A8 is a block I/O module. This module has Twenty-Four (24) 120VAC input channels and Eight (8) 120 VAC outputs. This module comes with a power supply, PLC interface, I/O connections and signal processing and conditioning circuitry. This device is ideally used for implementation of Remote I/O architecture.

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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Revisions: Ser A Ser B 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1791-24A8.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

To speak to a sales representative for pricing & lead time:


Rated 4.5 with 27 reviews

    Technical Specifications for 1791-24A8

ManufacturerRockwell Automation
Thermal Dissipation, maximum:63.97 BTU/Hr
Power Dissipation, maximum:18.76 Watts
Mounting:Vertical / Horizontal
External Power, Current:150 mA
External Power, Voltage:85-132VAC
No. of output Groups:1 group of 8
Output Voltage Range20-123VAC
No of outputs:Eight (8
On-state Voltage range:79-132VAC
BrandAllen-Bradley
No. of Groups:3 groups of 8
No. of Inputs:Twenty-Four (24)
Product Type:Block I/O
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

*The Allen Bradley 1791-24A8 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791-24A8 units instead of migration.

ManufacturerRockwell Automation
Thermal Dissipation, maximum:63.97 BTU/Hr
Power Dissipation, maximum:18.76 Watts
Mounting:Vertical / Horizontal
External Power, Current:150 mA
External Power, Voltage:85-132VAC
No. of output Groups:1 group of 8
Output Voltage Range20-123VAC
No of outputs:Eight (8
On-state Voltage range:79-132VAC
BrandAllen-Bradley
No. of Groups:3 groups of 8
No. of Inputs:Twenty-Four (24)
Product Type:Block I/O
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

*The Allen Bradley 1791-24A8 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791-24A8 units instead of migration.

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About 1791-24A8

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.

When connecting this module to the appropriate controller, recommended cable for use is Belden 9463 cable, a Three- wire cable with Blue, Clear and Shield wire. This cable is sometimes referred to as the Belden Blue Hose wire.

When connected in daisy-chain topology, the last node must be installed with a terminating resistor. This resistor closes the Remote I/O loop and signals the last node of the network. It not installed; intermittent communication can be experienced. Resistor values vary in Two (2) values, 82 Ohm and 150 Ohm terminating resistor.

FAQ for 1791-24A8

What is the voltage of the 1791-24A8 Discrete AC Block I/O Module?


The 1791-24A8 has a voltage of 120V ac.

How many inputs are there on the 1791-24A8?


There are 24 inputs on the 1791-24A8.

How many outputs are there on the 1791-24A8?


The 1791-24A8 has 8 outputs on it.

What is the price of a 1791-24A8 Allen Bradley Discrete I/O Block AC Module?


Submit quote request, send us an email, or call 800-730-0292 for our best price.

Does DO Supply offer repair services for the 1791-24A8 Allen Bradley Discrete I/O Block AC Module?


Yes, DO Supply offers repair services for a variety of Allen-Bradley products, such as the 1791-24A8. For more information or to request a repair quote, please click here.

How many Input and output channels does this Block I/O module have?


The 1791-24A8 has 24 120VAC input and 8 120 VAC output channels.

What are the controllers that I can use with the 1791-24A8?


Compatible controllers for use with the 1791-24A8 are PLC2, PLC3, PLC5 and SLC500 controllers.

What connection topology does the 1791-24A8 support?


As the 1791-24A8 supports Remote I/O protocol, the topology it supports is Daisy- chain.

Technical Description of 1791-24A8

This Allen Bradley Discrete AC Block I/O Module has an I/O mix of 24 output points and 8 input points.  This Block I/O modules has an input voltage of 79 - 132 VAC and uses Remote I/O communication.  The outputs of this modules are 3 groups of 8 while the inputs of this module is 1 group of 8 inputs.

Repair Services for 1791-24A8

Type Lead Time Price Action
Repair Service 2-4 weeks $3127cartAdd to Cart

Our highly skilled technicians can repair your 1791-24A8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1791-24A8

Please refer to the manual for more information about the 1791-24A8 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1791-24A8 Ser A
1791-24A8/A, Series A, Rev A Request Quote
1791-24A8/B, Series B, Rev B Request Quote
Common misspellings:
  • l791-24A8
  • 179l-24A8
  • 1791-2AA8
  • 1791-24Ab
  • 179124A8

Reviews for 1791-24A8

Product Review

"The 1791-24A8 is an Allen-Bradley Block I/O module. This module connects to a PLC2, PLC3, PLC5 and SLC500 controllers via a Remote I/O scanner. This configuration of Block I/O boasts of Twenty-Four (24) 120VAC input channels and Eight (8) 120VAC output channels. This module has the highest no. of input channels compared to other Block I/O products. " -DO Supply Tech

Dimensions For 1791-24A8

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1791-24A8

Resolutions For 1791-24A8

About

Technical Specifications for 1791-24A8

ManufacturerRockwell Automation
Thermal Dissipation, maximum:63.97 BTU/Hr
Power Dissipation, maximum:18.76 Watts
Mounting:Vertical / Horizontal
External Power, Current:150 mA
External Power, Voltage:85-132VAC
No. of output Groups:1 group of 8
Output Voltage Range20-123VAC
No of outputs:Eight (8
On-state Voltage range:79-132VAC
BrandAllen-Bradley
No. of Groups:3 groups of 8
No. of Inputs:Twenty-Four (24)
Product Type:Block I/O
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
ManufacturerRockwell Automation
Thermal Dissipation, maximum:63.97 BTU/Hr
Power Dissipation, maximum:18.76 Watts
Mounting:Vertical / Horizontal
External Power, Current:150 mA
External Power, Voltage:85-132VAC
No. of output Groups:1 group of 8
Output Voltage Range20-123VAC
No of outputs:Eight (8
On-state Voltage range:79-132VAC
BrandAllen-Bradley
No. of Groups:3 groups of 8
No. of Inputs:Twenty-Four (24)
Product Type:Block I/O
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

*The Allen Bradley 1791-24A8 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791-24A8 units instead of migration.

About 1791-24A8

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.

When connecting this module to the appropriate controller, recommended cable for use is Belden 9463 cable, a Three- wire cable with Blue, Clear and Shield wire. This cable is sometimes referred to as the Belden Blue Hose wire.

When connected in daisy-chain topology, the last node must be installed with a terminating resistor. This resistor closes the Remote I/O loop and signals the last node of the network. It not installed; intermittent communication can be experienced. Resistor values vary in Two (2) values, 82 Ohm and 150 Ohm terminating resistor.

FAQ for 1791-24A8

What is the voltage of the 1791-24A8 Discrete AC Block I/O Module?


The 1791-24A8 has a voltage of 120V ac.

How many inputs are there on the 1791-24A8?


There are 24 inputs on the 1791-24A8.

How many outputs are there on the 1791-24A8?


The 1791-24A8 has 8 outputs on it.

What is the price of a 1791-24A8 Allen Bradley Discrete I/O Block AC Module?


Submit quote request, send us an email, or call 800-730-0292 for our best price.

Does DO Supply offer repair services for the 1791-24A8 Allen Bradley Discrete I/O Block AC Module?


Yes, DO Supply offers repair services for a variety of Allen-Bradley products, such as the 1791-24A8. For more information or to request a repair quote, please click here.

How many Input and output channels does this Block I/O module have?


The 1791-24A8 has 24 120VAC input and 8 120 VAC output channels.

What are the controllers that I can use with the 1791-24A8?


Compatible controllers for use with the 1791-24A8 are PLC2, PLC3, PLC5 and SLC500 controllers.

What connection topology does the 1791-24A8 support?


As the 1791-24A8 supports Remote I/O protocol, the topology it supports is Daisy- chain.

Technical Description of 1791-24A8

This Allen Bradley Discrete AC Block I/O Module has an I/O mix of 24 output points and 8 input points.  This Block I/O modules has an input voltage of 79 - 132 VAC and uses Remote I/O communication.  The outputs of this modules are 3 groups of 8 while the inputs of this module is 1 group of 8 inputs.
Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $3127cartAdd to Cart

Our highly skilled technicians can repair your 1791-24A8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks $3127cartAdd to Cart

Our highly skilled technicians can repair your 1791-24A8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 1791-24A8 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1791-24A8 Ser A
1791-24A8/A, Series A, Rev A Request Quote
1791-24A8/B, Series B, Rev B Request Quote

Common misspellings:
  • l791-24A8
  • 179l-24A8
  • 1791-2AA8
  • 1791-24Ab
  • 179124A8
PDF
Reviews

Reviews for 1791-24A8

Product Review

"The 1791-24A8 is an Allen-Bradley Block I/O module. This module connects to a PLC2, PLC3, PLC5 and SLC500 controllers via a Remote I/O scanner. This configuration of Block I/O boasts of Twenty-Four (24) 120VAC input channels and Eight (8) 120VAC output channels. This module has the highest no. of input channels compared to other Block I/O products. " -DO Supply Tech