Product Summary
The Allen-Bradley 1794-IE4XOE2 operates as a high-density Flex IO combination module. This unit offers four single-ended analog inputs and two outputs. Engineers use this module for reliable signal conversion in distributed systems. Its compact size fits standard DIN rail mounts.
Product Procurement & Buyer Guide
Procurement teams require modules that match exact application needs. The 1794-IE4XOE2 delivers a precise combination of input and output channels. You get four inputs for current or voltage signals. This module also provides two configurable output channels.
Selecting the right module reduces system complexity. The 1794-IE4XOE2 features a resolution of 12 Bits for unipolar signals. Bipolar signals use 11 bits plus a sign bit. This resolution ensures accurate data capture from field sensors.
The module supports multiple signal types. Inputs accept 0-20 mA, 4-20 mA, 0-10 VDC, and +/-10 VDC. Outputs also handle these common industrial ranges. This flexibility reduces the need for extra signal converters.
Power requirements are straightforward for system planners. The 1794-IE4XOE2 needs 24 Volts DC for operation. It draws 70 milliamps of current at that voltage. The module dissipates a maximum of 4 Watts of power.
Application engineers must consider the module’s physical size. The dimensions are 1.8 x 3.7 x 2.1 inches. This compact footprint saves valuable space inside control panels. Mounting is easy on a standard 35mm DIN rail.
Compatibility with terminal bases is critical for installation. The 1794-IE4XOE2 works with several base units. Use the 1794-TB2, -TB3, -TB3S, -TB3T, or -TB3TS bases. These bases provide secure wiring and backplane connections.
Expert Technical Evaluation & Performance Review
The 1794-IE4XOE2 uses robust conversion technology for outputs. It relies on Pulse Width Modulation (PWM) for its digital-to-analog conversion. This method delivers stable and precise analog output signals.
Input accuracy meets strict industrial standards. The module achieves 0.20% Full Scale accuracy at 25°C. This absolute accuracy ensures reliable measurement of process variables. Output accuracy is also very high for control loops.
Signal processing speed meets demanding automation needs. Each input channel converts data in 256 microseconds. The step response to reach 63% is 9.4 ms for voltage. For current signals, this response time is 18.2 ms.
Environmental tolerances make this module suitable for harsh areas. The storage temperature range is -40 to 85 °C (-40…185 °F). It withstands vibration up to 5g from 10 to 500 Hz. The module also handles operating shock of 30 g.
The module offers strong noise rejection capabilities. Voltage inputs show -3 dB rejection at 17 Hertz. Current inputs provide -3 dB rejection at 9 Hertz. This performance filters out electrical interference effectively.
Impedance values match standard field devices. Voltage inputs have an impedance of 100 kiloohms. Current inputs present a 238 Ohm load. These values ensure proper signal transfer from sensors.
The power dissipation stays low for thermal management. Maximum dissipation reaches 4 Watts at 31.2 Volts DC. Thermal dissipation is 13.6 BTU/hour total. This low heat output reduces cooling needs in the cabinet.
Logistics & Standard Packaging Details
Your order includes one complete module unit. The package contains the 1794-IE4XOE2 analog I/O module. You receive the required installation documentation. Express shipping options are available for fast delivery. We ship via FedEx, UPS, and DHL carriers.
