A-B 1794-ADN control module

A-B 1794-ADN FLEX I/O DeviceNet Adapter Overview

The Allen-Bradley 1794-ADN is a FLEX I/O DeviceNet adapter module. It serves as the communication interface between FLEX I/O modules and a DeviceNet network. It allows a DeviceNet master controller to communicate with and control various FLEX I/O modules connected to it.

Product Detailed Description

• Function:

• Provides a communication interface between FLEX I/O modules and a DeviceNet network.

• Acts as a slave device on the DeviceNet network.

• Supports various DeviceNet communication services for data exchange with the master controller.

• Allows configuration of network parameters such as node address and baud rate.

• Provides power distribution to the connected FLEX I/O modules.

• Offers status indicators for network communication and module health.

• Features:

• Connects up to eight FLEX I/O modules.

• Supports DeviceNet baud rates of 125 kbps, 250 kbps, and 500 kbps.

• Features a 5-pin DeviceNet connector.

• Offers electronic keying to prevent incorrect module insertion.

• Provides local fault indication.

• Compact and modular design of the FLEX I/O system allows for flexible configuration.

Product Parameters

• DeviceNet Interface:

• Connector Type: 5-pin open-style connector

• Baud Rates Supported: 125 kbps, 250 kbps, 500 kbps

• Maximum Number of Modules Supported: 8 FLEX I/O modules

• EDS File Available: Yes

• Power Supply:

• Input Voltage: 24V DC nominal (provided through the DeviceNet network)

• Current Consumption: Typically around 100 mA (plus the current required by the connected I/O modules)

• Power Distribution to I/O Modules: Internally bused

• Environmental:

• Operating Temperature: -20 to +70 °C (-4 to +158 °F)

• Storage Temperature: -40 to +85 °C (-40 to +185 °F)

• Relative Humidity: 5 to 95% noncondensing ¹

• Vibration: 5 g peak, 10 to 500 Hz

• Shock: 30 g operational, 50 g nonoperational

• Dimensions (H x W x D):

• Typically around 94 mm (3.7 in) x 94 mm (3.7 in) x 56 mm (2.2 in) (varies slightly based on specific series)

• Weight:

• Typically around 170 g (6 oz)

• Certifications:

• CE, UL, cUL, KC, etc. (refer to the specific product datasheet)

Product Advantages

• Seamless DeviceNet Integration:

• Provides a reliable interface for connecting FLEX I/O to DeviceNet networks.

• Flexibility and Scalability:

• Allows for a modular approach to I/O configuration, easily adding or removing modules as needed.

• Cost-Effective:

• Offers a cost-efficient solution for distributed I/O on a DeviceNet network.

• Ease of Installation and Configuration:

• Simple to mount and configure using standard DeviceNet tools.

• Robust and Reliable:

• Designed for industrial environments with a wide operating temperature range and high tolerance to vibration and shock.

• Electronic Keying:

• Prevents accidental insertion of incompatible I/O modules, reducing potential errors.

• Local Diagnostics:

• Status indicators provide quick visual feedback on network and module status.

Precautions

• Correct Installation:

• Mount the adapter securely on a DIN rail according to the manufacturer's instructions.

• Proper Wiring:

• Ensure correct wiring of the DeviceNet cable and power connections. Follow DeviceNet cabling guidelines.

• DeviceNet Addressing:

• Configure a unique and valid DeviceNet node address for the adapter.

• Baud Rate Setting:

• Set the baud rate of the adapter to match the DeviceNet network.

• Power Requirements:

• Ensure the DeviceNet power supply meets the current requirements of the adapter and connected I/O modules.

• Environmental Limits:

• Operate the adapter within its specified temperature, humidity, vibration, and shock limits.

• ESD Precautions:

• Observe electrostatic discharge (ESD) precautions when handling the adapter and I/O modules.

• EDS File Usage:

• Use the correct EDS (Electronic Data Sheet) file for configuration in the DeviceNet master controller.

Product Applications

The Allen-Bradley 1794-ADN FLEX I/O DeviceNet adapter is commonly used in various industrial automation applications where distributed I/O is required on a DeviceNet network, including:

• Material Handling:

• Controlling sensors and actuators on conveyors and sorting systems.

• Automotive Manufacturing:

• Connecting I/O devices on assembly lines and robotic cells.

• Food and Beverage Processing:

• Interfacing with sensors and control elements in processing and packaging equipment.

• Packaging Machinery:

• Integrating I/O for various functions in packaging lines.

• General Industrial Automation:

• Providing distributed I/O for a wide range of machinery and equipment controlled by a DeviceNet master.

• Machine Building:

• Offering a flexible and modular I/O solution for custom-built machines.

Shipping Port: Xiamen, China

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