Replace Industrial
BrandAllen-Bradley
SeriesControlLogix
Outputs8 Current
EnclosureNone
esolution16-Bit
Resolution15 bits
Data FormatIEEE 32-bit floating point
Module TypeIsoloated Analog Output Module
ManufacturerIndustrial Automation
Output Range0-20 or 4-20 milliamps
No. of OutputsEight (8) Current / Voltage
Conversion MethodR-Ladder DAC, monotonicity with no missing codes
Isolation Voltage50 Volts Continuous
Power Dissipation6.5 Watts
Output Current Range0-20 mA; 4-20 mA
Output Voltage Range10…10V; 0…10V; 0…5V
Open circuit detectionCurrent only
Overvoltage protection±30V DC (voltage/current)
Part Number/Catalog No.1756-OF8I
Short circuit detectionVoltage only
Current Draw (24 Volts DC)400 milliamps
Removable Terminal Block(s)1756-TBCH, 1756-TBS6H
Removeable Terminal Block(s)1756-TBNH, 1756-TBSH
Allen-Bradley

1756-OF8I

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PLCsControlLogix 1756

Industrial Automation offers the non-affiliated Allen-Bradley 1756-OF8I ControlLogix module, featuring eight isolated analog outputs for precise control in automation systems. It supports a range of current and voltage outputs, with high-resolution conversion and built-in protections, all requiring a minimal power draw of just 6.5 watts.

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Introduction to Allen-Bradley 1756-OF8I

The Allen-Bradley 1756-OF8I is an analog output module that belongs to the ControlLogix family of programmable automation controllers (PAC). This module is designed to provide high precision voltage or current output for industrial control systems. It offers flexibility and performance for applications requiring analog control, making it a vital component in a wide range of industrial automation projects.

Technical Specifications

The 1756-OF8I module features eight individually isolated outputs, with each channel capable of converting digital values to analog signals. The output range for voltage is typically between 0-10V or +/-10V, and for current, it is between 4-20 mA or 0-20 mA. The module's high-resolution 16-bit digital-to-analog converters ensure accurate and dependable performance in the most demanding conditions. It also includes on-board data alarming, scaling to engineering units, and real-time channel sampling.

Compatibility and Integration

Designed to integrate seamlessly with the ControlLogix chassis, the Allen-Bradley 1756-OF8I module works in conjunction with other modules in the series to provide a robust control system solution. It utilizes the common industrial protocol (CIP) for communication and is compatible with Studio 5000 Logix Designer application, previously known as RSLogix 5000. Users can configure the module parameters using this software, streamlining setup and deployment processes.

Applications

The 1756-OF8I is used in a variety of industrial applications where precise control of analog outputs is required. These applications include, but are not limited to, process control, drive control, and machine control. The module's isolation between channels allows for individual signal integrity, reducing the risk of electronic interference and ensuring that the output signal remains accurate even in electrically noisy environments.

Safety and Reliability

Allen-Bradley is known for its focus on safety and reliability, and the 1756-OF8I module is no exception. It is built to withstand harsh industrial conditions and is tested to meet stringent safety standards. The module also provides over-voltage and under-voltage detection and includes fault protection mechanisms to prevent damage and ensure continuous, reliable operation in the field.

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