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1794-APB

Revisions: Ser A Ser B

Description:   The Allen-Bradley 1794-APB PROFIBUS Adapter has a 24V DC Voltage, a 8 Modules I/O Capacity, and a 19.2-31.2V DC Input Voltage Range. It also operates with a 850V DC Isolation Voltage and a 400mA max. Power Consumption.

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Warranty: 1 year DO Supply Warranty Included
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Repairs: We offer repair service for the 1794-APB.
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About 1794-APB

The Allen-Bradley 1794-APB is a FLEX I/O 12 Mbps PROFIBUS DP network adapter module. It is a redundant adapter that can power the internal logic for up to 8 input or output modules in one FLEX I/O system. The 1794-APB communicates with the FLEX I/O backplane and any PROFIBUS DP master/scanner controller within the PROFIBUS DP network. It is also a slave device to the DP master/scanner and to the master controller of the FLEX I/O system it is part of. It also has communication rates of 57.6 Kbps, 115.2 Kbps, and 230.4 Kbps. This adapter module uses a standard PROFIBUS drop cable and a 9-Pin D-shell PROFIBUS connector. It has an open-type enclosure and can mount on a panel or a DIN rail. The 1794-APB adapter module measures 3.7 x 3.6 x 3.4 inches and has two diagnostic indicators where users can check the device's status (labeled STATUS) and the communication link status (labeled PROFIBUS).

The input voltage range of the 1794-APB adapter module is 19.2 to 31.2 Volts DC, including an AC ripple of 5%. It has a maximum input current of 450 mA and 330 mA at 24 Volts DC, as well as a nominal input voltage of 24 Volts DC. The 1794-APB adapter module has a maximum FlexBus output current of 640 mA at 5 Volts DC and an inrush current of 23 Amps for 2 milliseconds. Its power consumption is 7.9 W at 24 Volts. The isolation voltage of this adapter module has been 100% tested for 1 s at 850 Volts DC between the user power and FlexBus. It also has a maximum power dissipation of 7.68 W at 19.2 Volts DC and a thermal dissipation of 26 BTU/hour at 19.2 Volts DC also. Its operating temperature range is 0 to 55 degrees Celsius, its storage temperature is -40 to 85 degrees Celsius, and its maximum surrounding air temperature is 55 degrees Celsius.

Technical specifications:

Part Number:1794-APB
Product Type:PROFIBUS Adapter
Voltage:24V DC
Input Voltage Range:19.2-31.2V DC
Flexbus Output Current:640mA max. @ 5V DC
Isolation Voltage:850V DC
Power Consumption:400mA max.
Power Dissipation:7.68W max @ 19.2V DC
Communication Rate:All rates up to 12.0Mbits
PROFIBUS Connector:9-pin D-shell

FAQ

Question: What is the communication rate for the 1794-APB PROFIBUS Adapter Module?

Answer: All communication rates can reach a maximum of 1.5 Mbits per second on the 1794-APB PROFIBUS Adapter Module. 

 

Question: What is the price of a 1794-APB PROFIBUS Adapter Module?

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

 

Question: Does DO Supply offer repair services for the 1794-APB PROFIBUS Adapter Module?

Answer: Yes, DO Supply offers repair services for a variety of Allen-Bradley products, such as the 1794-APB. For more information or to request a repair quote, please click here

Please refer to the manual for more information about the 1794-APB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-APB Ser A
1794-APB/A, Series A, Rev A Request Quote
1794-APB Ser B
1794-APB/B, Series B, Rev B Request Quote

Common misspellings: 1794APB
l794-APB
179A-APB
1794-AP8
1794-APBX