About 1794-AENTR

The Allen-Bradley module 1794-AENTR is a component module of the Flex I/O product family. This module is a redundant Ethernet communication adapter, typically used to implement high-availability Ethernet network as it supports implementation of Device Level Ring (DLR) topology.

Ethernet connectivity is achieved via the Dual RJ45 ports that supports Ethernet I/P protocol. These ports support Linear for simple communication network and Ring topology for High availability network. It supports 10/100 Mbps communication rate and capable of interfacing up to Eight (8) Flex I/O modules to the controller connected in the network.

The 1794-AENTR is directly mounted to a DIN rail. Inspect installation point for excessive vibration and shock. Operating vibration and shock acceptable for the module is 5g and 30g respectively. An external power supply with nominal supply voltage of 24VDC must be connected to the power terminals of the 1794-AENTR to energize the module. Acceptable voltage supply range is 19.2…31.2V DC, including 5% AC ripple. Conductor wire size recommended when establishing connections to the module is 0.33...3.31 sq. mm or 22...12 AWG, stranded copper wire with insulation rating of 75 °C or 167 °F or higher and maximum insulation thickness of 1.2 mm or 3/64 in.

This module is provided with status indicators that may help users in troubleshooting and monitoring the module. It has bi-color LED indicators that provide status regarding Module, Network, Ethernet Link1 and Ethernet Link2. Module and Network status LED are lit Green when normal and Red when experiencing problems. Link 1 and Link 2 status lit flashing yellow for 10 Mbps connections and green for 100 Mbps connection.

The Allen-Bradley 1794-AENTR is a Flex I/O dual-port EtherNet/IP redundant media adapter module. It can handle up to 8 I/O modules and it has a communication rate of 10 to 100 Mbps. It comes with an inrush current of 18 Amps for 2 milliseconds. It has a nominal input voltage of 24 Volts DC and an input voltage range of 19.2 to 31.2 Volts DC, which includes the 5% AC ripple. This module has a maximum power consumption of 500 mA and one of 400 mA at 24 Volts DC and a maximum Flexbus output of 640 mA at 5 Volts DC.

Ethernet adapter modules like the 1794-AENTR connect Ethernet/IP-enabled controllers like the ControlLogix and CompactLogix. It comes with status indicators that allow the users to monitor the conditions of the network (red/green), the module (red/green), and both links (yellow/green). The isolation voltage of this module is continuous at 50 Volts and it has a basic isolation type. It has been type-tested from power to Flexbus and to Ethernet at 1000 Volts AC for 60 seconds. It has a maximum power dissipation of 7.1 W at 19.2 Volts DC and a thermal dissipation of 24.2 BTU/hour at 24 Volts DC.
Installing and removing this module should not be done when it is powered on. The power source of this module should be Safety Extra Low Voltage (SELV)-compliant or Protected Extra Low Voltage (PELV)-compliant to comply with the CE Low Voltage Directive (LVD). Mounting is done with a DIN rail. I/O configuration is done by using the RSLogix 5000 software. No network scheduling and no routing tables are required for this module. The 1794-AENTR module can communicate with FLEX I/O modules on the same DIN rail. Note that users need to configure the IP address and the optional gateway address and subnet mask before using this module. The entire 1794-AENTR module measures 3.4 x 3.7 x 2.7 inches. This adapter is suitable for certain application requirements that use an Ethernet network. These include when there is a need for data to be sent regularly or for plant management. There is a built-in switch for high levels of availability and for drive configuration, data collection, and process control on a single, high-speed network, with internet/intranet connections. It uses the Control and Information Protocol (CIP).

FAQ for 1794-AENTR

Question	Answer
1: How many I/O modules can the 1794-AENTR handle?	The 1794-AENTR can handle up to 8 I/O modules.
2: Can the 1794-AENTR use the CIP?	Yes, the 1794-AENTR can use the CIP.
3: Does the 1794-AENTR have status indicators?	Yes, the 1794-AENTR has 3 status indicators.
4: Does the 1794-AENTR have an AC ripple?	Yes, the 1794-AENTR has a 5% AC ripple.
5: Can the 1794-AENTR be mounted on a DIN rail?	Yes, the 1794-AENTR can be mounted on a DIN rail.
6: Can the 1794-AENTR use Ethernet?	Yes, the 1794-AENTR can use Ethernet.
7: What is the supported mounting of the 1794-AENTR?	The 1794-AENTR supports DIN Rail mounting.
8: Does this module come with status indicator LED lights?	Yes, the module has Module status, Network status, Link 1status and Link 2 status indicators.
9: What is the enclosure rating of the 1794-AENTR?	The 1794-AENTR has an open type enclosure. This module must be installed inside an enclosure that offers adequate protection.

Repair Services for 1794-AENTR

Type	Lead Time	Price	Action
Repair Service	2-4 weeks	$384.81	Add to Cart

Our highly skilled technicians can repair your 1794-AENTR. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1794-AENTR

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

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

Reviews for 1794-AENTR

Product Review

"The 1794-AENTR is an Ethernet I/P communication adapter from the Flex I/O product family. This module is ideally used in application where communication network requires an increased availability. It supports ring and linear topology and communication rate of 10/100 Mbps. " -DO Supply Tech

Dimensions For 1794-AENTR

Dimensions For 1794-AENTR

Resolutions For 1794-AENTR