Description: The Allen-Bradley 1794-ASB is a Flex I/O communication adapter. This adapter is a DIN rail mounted device, which features One (1) Remote I/O (RIO) communication port, used for connecting Flex I/O rack to RIO capable controllers. It supports 57.6Kbps, 115.2Kbps, and 230.4kbps communication rate with an input voltage requirement of 19.2 - 31.2 VDC. It supports installation of up to Eight (8) Flex I/O modules.
Warranty: | 1 year DO Supply Warranty Included |
Shipping: | Worldwide shipping via DHL, UPS, Fedex, and TNT |
Repairs: | We offer repair service for the 1794-ASB. |
Exchange: | Exchange credit for your defective unit available. |
Manufacturer | Rockwell Automation |
Power Dissipation | 4.6 W @ 31.2V DC |
Brand | Allen-Bradley |
Product Description: | Remote I/O communication Adapter |
Programming software: | RSLogix5, RSLogix500, RSLogix5000, Studio 5000 Logix Designer |
Communication Port: | One (1) RIO port |
Supported Protocol: | RIO |
Supported topologies: | Daisy Chain |
Data Transfer speed: | 57.6Kbps, 115.2Kbps, and 230.4kbps |
Indicators: | Power; Adapter Active; Adapter Fault; Local Fault |
RIO cable: | Belden 9463 or Equivalent |
Operating Temperature: | 0 to 55 C (32 to 131 F) |
Storage Temperature: | -40 to 85 C (-40 to 185 F) |
Vibration: | Tested 5 g @ 10-500Hz per IEC 68-2-6 |
Operating Shock: | 30 g peak acceleration, 11(+1)ms pulse width |
Power Consumption: | 330 mA @ 24V DC |
Thermal Dissipation | 15.7 BTU/hr @ 24V DC |
Part Number/Catalog No. | 1794-ASB |
Product Type | Remote IO Adapter |
Series | Flex I/O |
Module Capacity | 8 Modules |
Mount | DIN Rail |
Controller Platform | FlexLogix |
Diagnostic Indicators | Status |
Enclosure | IP20, Open Type |
Series Available | 1794-ASB - A/B/C/D/E |
Communication Rate | 57.6, 115.2, 230.4 Kbps |
External Power Supply | 450 mA at 24 Volts DC |
Voltage | 24 Volts DC |
Dimensions | 4 x 2 x 4 inches |
UPC | 10662468112175 |
Manufacturer | Rockwell Automation |
Power Dissipation | 4.6 W @ 31.2V DC |
Brand | Allen-Bradley |
Product Description: | Remote I/O communication Adapter |
Programming software: | RSLogix5, RSLogix500, RSLogix5000, Studio 5000 Logix Designer |
Communication Port: | One (1) RIO port |
Supported Protocol: | RIO |
Supported topologies: | Daisy Chain |
Data Transfer speed: | 57.6Kbps, 115.2Kbps, and 230.4kbps |
Indicators: | Power; Adapter Active; Adapter Fault; Local Fault |
RIO cable: | Belden 9463 or Equivalent |
Operating Temperature: | 0 to 55 C (32 to 131 F) |
Storage Temperature: | -40 to 85 C (-40 to 185 F) |
Vibration: | Tested 5 g @ 10-500Hz per IEC 68-2-6 |
Operating Shock: | 30 g peak acceleration, 11(+1)ms pulse width |
Power Consumption: | 330 mA @ 24V DC |
Thermal Dissipation | 15.7 BTU/hr @ 24V DC |
Part Number/Catalog No. | 1794-ASB |
Product Type | Remote IO Adapter |
Series | Flex I/O |
Module Capacity | 8 Modules |
Mount | DIN Rail |
Controller Platform | FlexLogix |
Diagnostic Indicators | Status |
Enclosure | IP20, Open Type |
Series Available | 1794-ASB - A/B/C/D/E |
Communication Rate | 57.6, 115.2, 230.4 Kbps |
External Power Supply | 450 mA at 24 Volts DC |
Voltage | 24 Volts DC |
Dimensions | 4 x 2 x 4 inches |
UPC | 10662468112175 |
Question | Answer |
1: How many I/O Modules can a 1794-ASB communicate with? | One 1794-ASB adapter can communicate with up to 8 FLEX I/O modules. This module powers the internal logic for up to 8 I-O Flex modules. |
2: What are the alternate series for the 1794-ASB module? | This module's alternate series include Series A, B, C, D, and Series E adapter modules. |
3: What is the 1794-ASB communication rate? | The 1794-ASB communication rates are 57.6 Kbps, 115.2 Kbps, and 230.4 Kbps. |
4: Can this module be purchased with a warranty? | Yes, the 1794-ASB comes with a free one-year warranty from DO Supply, Inc. |
5: Does the 1794-ASB carry any indicators? | Yes, this module contains a number of Diagnostic Status indicators. |
6: Where can I send the 1794-ASB to be repaired? | DO Supply, Inc. offers a variety of repair services for the 1794-ASB. |
7: What is the supported protocol by the 1794-ASB? | The 1794-ASB supports Remote I/O (RIO) communication. |
8: What is the recommended cable to implement RIO connectivity? | Recommended Remote I/O cable is Belden 9463 or Equivalent cables. |
9: Can I use this communication adapter with legacy controller products? | Yes, the 1794-ASB is compatible with PLC2, PLC3 processors with specific cautions. It may also be used with PLC5 and SLC500 controllers. |
The 1794-ASB remote I/O adapter/power supply is a Flex I/O module that is used to communicate between connected SLC or PLC racks across an RIO Link.
The 1794-ASB communicates with PLC, SLC, and ControlLogix models, using baud rates of 57.6k bits/s, 115.2k bits/s or 230.4k bits/s
Note: Three conditions can cause the remote I/O adapter to produce a communication fault.
no remote I/O communication for more than 100ms
no command issued to this address over the remote I/O link within the last 255 link transactions
communication is lost when the Rack Fault Select is enabled
Check dip switch settings
Ensure connecting pins are straight and aligned properly
Check settings on devices communicating directly to the 1794-ASB
Make sure the Baud rate is set correctly on all devices
Check communications cable and resistors for damage
Be sure that Line 1, Shield, Line 2 are correctly placed on the devices being used
Use the reset button to reset the module and resume communications on both modules when a communication error occurs
Check publication for additional information and configuration settings
In this example we configure our G-data to ¼ rack before downloading.
The following parts will be used :
1747-L553
1747-SN
1746-A7
1794-TB3
1794-OA8
Configure communications device
Connect RIO cable
Apply power
(This is with the ASD module on with no communications)
Download program to the 1747-L553
Active light will illuminate, letting us know we have communications
Turn on the outputs through the output table
If actuated lights turn on, the 1794-ASB is working properly
Type | Lead Time | Price | Action |
---|---|---|---|
Repair Service | 2-4 weeks | $470.99 | ![]() |
Our highly skilled technicians can repair your 1794-ASB. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.
Please refer to the manual for more information about the 1794-ASB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.
Revision Part # | Also Known as | Availability |
1794-ASB A |
1794-ASB/A, Series A, Rev A | Request Quote |
1794-ASB B |
1794-ASB/B, Series B, Rev B | Request Quote |
1794-ASB C |
1794-ASB/C, Series C, Rev C | Request Quote |
1794-ASB D |
1794-ASB/D, Series D, Rev D | Request Quote |
1794-ASB Discontinued |
1794-ASB/Discontinued, Series Discontinued, Rev Discontinued | Request Quote |
1794-ASB E |
1794-ASB/E, Series E, Rev E | Request Quote |
1794-ASB Migration |
1794-ASB/Migration, Series Migration, Rev Migration | Request Quote |
1794-ASB Obsolete |
1794-ASB/Obsolete, Series Obsolete, Rev Obsolete | Request Quote |
1794-ASB Replacement |
1794-ASB/Replacement, Series Replacement, Rev Replacement | Request Quote |
1794-ASB REV A01 |
1794-ASB/REV A01, Series REV A01, Rev REV A01 | Request Quote |
1794-ASB REV A02 |
1794-ASB/REV A02, Series REV A02, Rev REV A02 | Request Quote |
1794-ASB REV L02 |
1794-ASB/REV L02, Series REV L02, Rev REV L02 | Request Quote |
1794-ASB/A, Series A, Rev A | Request Quote | |
1794-ASB/B, Series B, Rev B | Request Quote | |
1794-ASB/C, Series C, Rev C | Request Quote | |
1794-ASB/D, Series D, Rev D | Request Quote | |
1794-ASB/E, Series E, Rev E | Request Quote | |
1794-ASB Series A |
1794-ASB/ies A, Series ies A, Rev ies A | Request Quote |
1794-ASB/ies B, Series ies B, Rev ies B | Request Quote | |
1794-ASB/ies C, Series ies C, Rev ies C | Request Quote | |
1794-ASB/ies D, Series ies D, Rev ies D | Request Quote | |
1794-ASB/ies E, Series ies E, Rev ies E | Request Quote |
"The 1794-ASB is a Remote I/O communication adapter from the Flex I/O product family. This communication adapter is compatible for use with the legacy RIO protocol which may be used with PLC2, PLC3, PLC5 and SLC500 controllers. This module supports communication speed of 57.6Kbps, 115.2Kbps, and 230.4kbps communication rate. " -DO Supply Tech
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 |
Manufacturer | Rockwell Automation |
Power Dissipation | 4.6 W @ 31.2V DC |
Brand | Allen-Bradley |
Product Description: | Remote I/O communication Adapter |
Programming software: | RSLogix5, RSLogix500, RSLogix5000, Studio 5000 Logix Designer |
Communication Port: | One (1) RIO port |
Supported Protocol: | RIO |
Supported topologies: | Daisy Chain |
Data Transfer speed: | 57.6Kbps, 115.2Kbps, and 230.4kbps |
Indicators: | Power; Adapter Active; Adapter Fault; Local Fault |
RIO cable: | Belden 9463 or Equivalent |
Operating Temperature: | 0 to 55 C (32 to 131 F) |
Storage Temperature: | -40 to 85 C (-40 to 185 F) |
Vibration: | Tested 5 g @ 10-500Hz per IEC 68-2-6 |
Operating Shock: | 30 g peak acceleration, 11(+1)ms pulse width |
Power Consumption: | 330 mA @ 24V DC |
Thermal Dissipation | 15.7 BTU/hr @ 24V DC |
Part Number/Catalog No. | 1794-ASB |
Product Type | Remote IO Adapter |
Series | Flex I/O |
Module Capacity | 8 Modules |
Mount | DIN Rail |
Controller Platform | FlexLogix |
Diagnostic Indicators | Status |
Enclosure | IP20, Open Type |
Series Available | 1794-ASB - A/B/C/D/E |
Communication Rate | 57.6, 115.2, 230.4 Kbps |
External Power Supply | 450 mA at 24 Volts DC |
Voltage | 24 Volts DC |
Dimensions | 4 x 2 x 4 inches |
UPC | 10662468112175 |
Manufacturer | Rockwell Automation |
Power Dissipation | 4.6 W @ 31.2V DC |
Brand | Allen-Bradley |
Product Description: | Remote I/O communication Adapter |
Programming software: | RSLogix5, RSLogix500, RSLogix5000, Studio 5000 Logix Designer |
Communication Port: | One (1) RIO port |
Supported Protocol: | RIO |
Supported topologies: | Daisy Chain |
Data Transfer speed: | 57.6Kbps, 115.2Kbps, and 230.4kbps |
Indicators: | Power; Adapter Active; Adapter Fault; Local Fault |
RIO cable: | Belden 9463 or Equivalent |
Operating Temperature: | 0 to 55 C (32 to 131 F) |
Storage Temperature: | -40 to 85 C (-40 to 185 F) |
Vibration: | Tested 5 g @ 10-500Hz per IEC 68-2-6 |
Operating Shock: | 30 g peak acceleration, 11(+1)ms pulse width |
Power Consumption: | 330 mA @ 24V DC |
Thermal Dissipation | 15.7 BTU/hr @ 24V DC |
Part Number/Catalog No. | 1794-ASB |
Product Type | Remote IO Adapter |
Series | Flex I/O |
Module Capacity | 8 Modules |
Mount | DIN Rail |
Controller Platform | FlexLogix |
Diagnostic Indicators | Status |
Enclosure | IP20, Open Type |
Series Available | 1794-ASB - A/B/C/D/E |
Communication Rate | 57.6, 115.2, 230.4 Kbps |
External Power Supply | 450 mA at 24 Volts DC |
Voltage | 24 Volts DC |
Dimensions | 4 x 2 x 4 inches |
UPC | 10662468112175 |
Question: How many I/O Modules can a 1794-ASB communicate with?
Answer: One 1794-ASB adapter can communicate with up to 8 FLEX I/O modules. This module powers the internal logic for up to 8 I-O Flex modules.
Question: What are the alternate series for the 1794-ASB module?
Answer: This module's alternate series include Series A, B, C, D, and Series E adapter modules.
Question: What is the 1794-ASB communication rate?
Answer: The 1794-ASB communication rates are 57.6 Kbps, 115.2 Kbps, and 230.4 Kbps.
Question: Can this module be purchased with a warranty?
Answer: Yes, the 1794-ASB comes with a free one-year warranty from DO Supply, Inc.
Question: Does the 1794-ASB carry any indicators?
Answer: Yes, this module contains a number of Diagnostic Status indicators.
Question: Where can I send the 1794-ASB to be repaired?
Answer: DO Supply, Inc. offers a variety of repair services for the 1794-ASB.
What is the supported protocol by the 1794-ASB?
The 1794-ASB supports Remote I/O (RIO) communication.
What is the recommended cable to implement RIO connectivity?
Recommended Remote I/O cable is Belden 9463 or Equivalent cables.
Can I use this communication adapter with legacy controller products?
Yes, the 1794-ASB is compatible with PLC2, PLC3 processors with specific cautions. It may also be used with PLC5 and SLC500 controllers.
The 1794-ASB remote I/O adapter/power supply is a Flex I/O module that is used to communicate between connected SLC or PLC racks across an RIO Link.
The 1794-ASB communicates with PLC, SLC, and ControlLogix models, using baud rates of 57.6k bits/s, 115.2k bits/s or 230.4k bits/s
Note: Three conditions can cause the remote I/O adapter to produce a communication fault.
no remote I/O communication for more than 100ms
no command issued to this address over the remote I/O link within the last 255 link transactions
communication is lost when the Rack Fault Select is enabled
Check dip switch settings
Ensure connecting pins are straight and aligned properly
Check settings on devices communicating directly to the 1794-ASB
Make sure the Baud rate is set correctly on all devices
Check communications cable and resistors for damage
Be sure that Line 1, Shield, Line 2 are correctly placed on the devices being used
Use the reset button to reset the module and resume communications on both modules when a communication error occurs
Check publication for additional information and configuration settings
In this example we configure our G-data to ¼ rack before downloading.
The following parts will be used :
1747-L553
1747-SN
1746-A7
1794-TB3
1794-OA8
Configure communications device
Connect RIO cable
Apply power
(This is with the ASD module on with no communications)
Download program to the 1747-L553
Active light will illuminate, letting us know we have communications
Turn on the outputs through the output table
If actuated lights turn on, the 1794-ASB is working properly
Type | Lead Time | Price | Action |
---|---|---|---|
Repair Service | 2-4 weeks | $470.99 | ![]() |
Our highly skilled technicians can repair your 1794-ASB. 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 | $470.99 | ![]() |
Our highly skilled technicians can repair your 1794-ASB. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.
Please refer to the manual for more information about the 1794-ASB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.
Revision Part # | Also Known as | Availability |
1794-ASB A |
1794-ASB/A, Series A, Rev A | Request Quote |
1794-ASB B |
1794-ASB/B, Series B, Rev B | Request Quote |
1794-ASB C |
1794-ASB/C, Series C, Rev C | Request Quote |
1794-ASB D |
1794-ASB/D, Series D, Rev D | Request Quote |
1794-ASB Discontinued |
1794-ASB/Discontinued, Series Discontinued, Rev Discontinued | Request Quote |
1794-ASB E |
1794-ASB/E, Series E, Rev E | Request Quote |
1794-ASB Migration |
1794-ASB/Migration, Series Migration, Rev Migration | Request Quote |
1794-ASB Obsolete |
1794-ASB/Obsolete, Series Obsolete, Rev Obsolete | Request Quote |
1794-ASB Replacement |
1794-ASB/Replacement, Series Replacement, Rev Replacement | Request Quote |
1794-ASB REV A01 |
1794-ASB/REV A01, Series REV A01, Rev REV A01 | Request Quote |
1794-ASB REV A02 |
1794-ASB/REV A02, Series REV A02, Rev REV A02 | Request Quote |
1794-ASB REV L02 |
1794-ASB/REV L02, Series REV L02, Rev REV L02 | Request Quote |
1794-ASB/A, Series A, Rev A | Request Quote | |
1794-ASB/B, Series B, Rev B | Request Quote | |
1794-ASB/C, Series C, Rev C | Request Quote | |
1794-ASB/D, Series D, Rev D | Request Quote | |
1794-ASB/E, Series E, Rev E | Request Quote | |
1794-ASB Series A |
1794-ASB/ies A, Series ies A, Rev ies A | Request Quote |
1794-ASB/ies B, Series ies B, Rev ies B | Request Quote | |
1794-ASB/ies C, Series ies C, Rev ies C | Request Quote | |
1794-ASB/ies D, Series ies D, Rev ies D | Request Quote | |
1794-ASB/ies E, Series ies E, Rev ies E | Request Quote |
"The 1794-ASB is a Remote I/O communication adapter from the Flex I/O product family. This communication adapter is compatible for use with the legacy RIO protocol which may be used with PLC2, PLC3, PLC5 and SLC500 controllers. This module supports communication speed of 57.6Kbps, 115.2Kbps, and 230.4kbps communication rate. " -DO Supply Tech