1794-AENT Allen Bradley


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The Allen-Bradley 1794-AENT is a Flex I/O communication adapter. This adapter is a DIN rail mounted device, which features One (1) Ethernet communication port, used for connection Flex I/O rack to a central, ethernet enabled controller. It supports 10/100 Mbps 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.

Availability: 2 in stock

GTIN: 10612598279842 SKU: 1794 AENT Categories: ,

1794-AENT Allen Bradley Rockwell Automation

Technical Specifications for 1794-AENT

Manufacturer Rockwell Automation
Ethernet cable: RJ45 Cat.5
Indicators: Mod Status; Network Status; Link Status
Data Transfer speed: 10 to 100 Mbps
Supported topologies: Linear
Supported Protocol: Ethernet I/P
Communication Port: One (1) RJ45
Product Description: Ethernet Adapter Module
Mounting: DIN Rail
Brand Allen-Bradley
Wire Size: 0.34…2.5 mm2 (22…12 AWG) stranded copper wire rated at 75 °C (167 °F) or higher, 1.2 mm (3/64 in.) insulation max
Operating Temperature: 0 to 55 C (32 to 131 F)
Power Consumption 550 mA max, 440 mA max at 24V DC
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 Dissipation 7.3 W max @ 19.2V DC
Thermal Dissipation 24.9 BTU/hr @ 19.2V DC
Part Number/Catalog No. 1794-AENT
Product Type Flex I/O Ethernet/IP Adapter
I/O Capacity 8 Modules
Communication Rate 10/100 Mbps
Input Voltage Range 19.2 to 31.2 Volts DC
Nominal Input Voltage Rating 24 Volts DC
Enclosure Type Rating None (open-style)
Isolation Voltage 50 Volts Continuous
Flexbus Current 640 mA maximum
UPC 10612598279842


About 1794-AENT

The Allen-Bradley 1794-AENT is a Flex I/O module that functions as a communication adapter. This communication adapter enables a Flex I/O rack to connect to Ethernet network and exchange data with Ethernet enabled controllers. This adapter allows installation of up to Eight (8) Flex I/O modules, specifically supporting Discrete Input and output and Analog input and output modules.

Flex I/O product family are compact and cost-effective solution for implementing Distributed I/O architecture. The 1794-AENT allows this via the single RJ45 port which supports Ethernet I/P protocol. It supports 10/100 Mbps communication rate.

The 1794-AENT is capable of linear topology. The network address is configured using the thumbwheel switches provided with the module or using a DHCP server. By default, the adapter switches are set at 999.

When establishing connections to the module such as Power connections, recommended wire size range is 0.33…3.31 sq. mm (22…12 AWG) stranded copper wire. The recommended wire insulation rating is 75 °C (167 °F) or greater, and maximum insulation thickness of 1.2 mm (3/64 in.). Recommended terminal screw torque is 0.8 Nm (7 lb-in.). The module has physical dimensions of 87 x 94 x 92 mm or 3.4 x 3.7 x 3.6 in and weighs 227 g (8.01 oz.

The 1794-AENT Flex I/O communication adapter may act as remote I/O to controllers such as PLC5, SLC500, and Logix controller platforms such as CompactLogix and ControlLogix.

It supports up to Eight I/O modules. It has a current load of 450 mA at a 24 VDC power supply and the nominal power supply input voltage is 24 Volts DC. The operating voltage range of the 1794-AENT is 19.2 to 31.2 VDC, including an AC ripple of 5%. The module’s maximum Flexbus output current is 640 mA and its maximum power consumptions are 550 mA and 440 mA at 24 Volts DC. The 1794-AENT module also has a maximum power dissipation of 7.3 W at 19.2 Volts DC and a thermal dissipation of 24.9 BTU/hour at 19.2 Volts DC. This module has a red/green module status indicator, a red/green network status indicator, and a green link status indicator. It has an open-type enclosure that can be mounted using a DIN rail mount and it uses RJ-45 category 5 cables. The entire 1794-AENT module measures 3.4 x 3.7 x 2.7 inches.

It is highly recommended that you use a zinc-plated yellow-chromate steel DIN rail mount to ground this module to the chassis ground. Using DIN rail mounts made up of other materials that are at risk of corrosion or oxidation can result in improper and intermittent grounding. This module can also be mounted on a wall. The 1794-AENT adapter module connects Ethernet/IP-enabled controllers, like CompactLogix and ControlLogix controllers, to FLEX I/O. Among the terminal base units compatible with it are the 1794-TB3G and the 1794-TB3GS units. Make sure to use a power supply that is compliant with the Protected Extra Low Voltage (PELV) or Safety Extra Low Voltage (SELV) to comply with the CE Low Voltage Directive (LVD). When on an Ethernet network, the 1794-AENT module is recommended when your application requires internet/intranet connection, a built-in switch or high availability requirement, plant management (material handling), time-critical applications with no established schedule, configuration, data collection, and control on a high-speed, single network, and data sent regularly.

FAQ for 1794-AENT

How many I/O modules can the 1794-AENT support?

The 1794-AENT can support 8 I/O.

What is the 1794-AENT’s voltage range?

The 1794-AENT’s voltage 19.2 to 31.2 Volts DC.

What is the 1794-AENT’s power dissipation?

The 1794-AENT’s power dissipation is 7.3 W.

What kind of enclosure does the 1794-AENT have?

The 1794-AENT has an open enclosure.

What is the 1794-AENT’s communication rate?

The 1794-AENT’s communication rate is 10 to 100 Mbps.

What is the 1794-AENT’s maximum output current?

The maximum 1794-AENT’s output current is 640 mA.

How many Ethernet communication ports does the 1794-AENT have?

The 1794-AENT has One (1) RJ45 port supporting Ethernet I/P Protocol.

What is the supported communication rate of the 1794-AENT?

The 1794-AENT communication rate is 10/100 Mbps.

How many Flex I/O modules does the 1794-AENT support?

The 1794-AENT supports up to Eight (8) Flex I/O modules.

Technical Description of 1794-AENT

The Allen-Bradley 1794-AENT Flex I/O Ethernet/IP Adapter has a 8 Modules I/O Capacity, a 10/100 Mbps Communication Rate, and a 19.2-31.2V DC Input Voltage Range . It also operates with a 550mA max. Power Consumption and a None(open-style) Enclosure Type Rating.
Weight 1 kg
Dimensions 100 × 100 × 100 cm
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1794 AENT1794-AENT Allen Bradley

Availability: 2 in stock