Product Summary
The 1794-IE4XOE2 combines four analog inputs with two analog outputs in one compact module. This design saves valuable panel space and simplifies wiring. Engineers use it for precise signal acquisition and control in distributed systems. It handles both current and voltage signals with high accuracy.
Product Procurement & Buyer Guide
Why Choose This Combination Module?
The 1794-IE4XOE2 solves a common pain point for system integrators. You need both input and output channels in a single node. This module delivers exactly that. It reduces the number of required modules in your rack. This cuts procurement costs and lowers inventory complexity.
Matching Your Signal Requirements
This module accepts four single-ended input signals. You can configure them for 0-20 mA or 4-20 mA current loops. You can also select voltage ranges of 0-10 VDC or +/-10 VDC. The two output channels mirror these options. This flexibility allows one module to handle diverse field devices like transmitters and valves.
Critical Power Specifications
The module requires a 24 VDC power supply. The acceptable range is 19.2 to 31.2 Volts DC. At nominal voltage, it draws only 70 milliamps. The maximum power dissipation reaches 4 Watts at 31.2 Volts DC. This low power draw reduces strain on your system power supply.
Environmental Ruggedness
This module operates reliably in harsh conditions. The storage temperature range spans -40…85 °C (-40…185 °F). It withstands vibration up to 5g from 10 to 500 Hz. It also survives operating shocks of 30g. These ratings make it suitable for heavy industrial environments.
Terminal Base Compatibility
You must order a terminal base unit separately. The 1794-IE4XOE2 works with the 1794-TB2, -TB3, -TB3S, -TB3T, or -TB3TS bases. These bases provide the physical connection points. They also handle the backplane interface pins for communication.
Installation and Mounting
The module mounts directly onto a DIN rail. This standard mounting method simplifies installation. It also allows for quick replacement during maintenance. The module dimensions are just 1.8 x 3.7 x 2.1 inches. This compact size fits easily into crowded cabinets.
Performance Accuracy You Can Trust
The analog inputs achieve an absolute accuracy of 0.20% Full Scale @ 25°C. The output channels offer even better precision. The voltage output accuracy is 0.133% Full Scale @ 25°C. The current output accuracy is 0.425% Full Scale @ 25°C. These values ensure reliable data for your control system.
Understanding Conversion Types
The inputs use successive approximation for analog-to-digital conversion. This method provides a resolution of 12 bits for unipolar signals. The outputs use pulse width modulation for digital-to-analog conversion. Each input channel converts data in just 256 microseconds.
Thermal Management
The module dissipates a maximum of 13.6 BTU/hour. This heat output is minimal. It does not require special cooling or ventilation in most cabinets. Proper airflow around the DIN rail is still a best practice.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1794-IE4XOE2 Flex I/O Combination Analog Module
- Installation and wiring instructions reference guide
- Product is shipped in an anti-static protective package
- Express delivery shipping is available via FedEx, UPS, and DHL
- Terminal base unit is not included and must be ordered separately
