1794-IE4XOE2 | Allen-Bradley Flex I/O Analog Module 4-In/2-Out Single-Ended

Description 

The Allen-Bradley 1794-IE4XOE2 is a Flex IO combination analog I/O module. This module features Four (4) single-ended, non-isolated Current and voltage analog input channels configurable for 0-20 and 4-20 mA and +/-10VDC and 0-10 VDC, respectively. It also has Two (2) single-ended non-isolated analog output channels configurable for 0-20 and 4-20 mA and +/- 10VDC. This module requires use of 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS Terminal Base Units.

Technical Specifications 

Information About 1794-IE4XOE2

The Allen-Bradley 1794-IE4XOE2 is a combination I/O module. This module is part of the Flex I/O product family that is popularly used to implement distributed I/O architecture. The 1794-IE4XOE2 features the combined capability of analog and input channels as this module comes with Four (4) single-ended, non-isolated analog input channels and Two (2) single-ended, non-isolated analog output channels.

The analog input channels are configurable to receive analog input signals such as 0-20 mA and 4-20 mA signals and 0-10VDC and +/- 10VDC voltage signals. It has a built-in Analog to Digital converter (ADC) using the successive approximation method. Each channel has a conversion rate of 256μs with step response to 63% of 9.4 ms for voltage and 18.2 ms for current. It has an absolute accuracy of 0.20% Full Scale @ 25°C. This module saves the converted data into left justified, 16 bit 2s complement data format.

The analog output channels are capable of providing 0-20 mA and 4-20 mA signals as well as 0-10VDC and +/- 10VDC. The analog circuitry of the 1794-IE4XOE2 combination analog I/O module features a built-in Digital to Analog converter (DAC) using Pulse width modulation conversion method. The converted data is provided with an accuracy of 0.133% Full Scale @ 25°C and 0.425% Full Scale @ 25°C.

The 1794-IE4XOE2 requires use of a terminal base unit. This terminal base provide the terminal connection points as well as the backplane interface pins. Appropriate terminal base unit for use with the 1794-IE4XOE2 are 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS Terminal Base Units.

The 1794-IE4XOE2 module contains 4 single-ended and non-isolated inputs. The resolution for unipolar inputs is 12 bits while the resolution for bipolar inputs is 11 bits. The data format is left-justified 16-bits 2’s complement. The conversion type supported by the 1794-IE4XOE2 module is successive approximation conversion. The input current terminal is selectable between 4 to 20 milliamps or 0 to 20 milliamps. The input voltage terminal is selectable between ±10 Volts and 0 to 10 Volts. The normal mode rejection ratio for the voltage terminal is -3 dB at 17 Hertz and -10 dB at 50 Hertz. The normal mode rejection ratio for the current terminal is -3 dB at 9 Hertz and -15.3 dB at 50 Hertz. The input impedance for the voltage terminal is 100 kiloohms and for the current terminal, it is 238 Ohms. The 1794-IE4XOE2 module contains 2 single-ended and non-isolated outputs. The conversion type is pulse width modulation. The current load on the voltage output is 3 milliamps (maximum). The dimensions of the 1794-IE4XOE2 module are 1.8 x 3.7 x 2.1 inches. The power required is 24 Volts DC (19.2 to 31.2 Volts DC) with 70 milliamps of current at 24 Volts DC. The maximum thermal dissipation is 13.6 BTU/hour and the maximum power dissipation is 4 Watts at 31.2 Volts DC.

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.