Description
Allen-Bradley 1794-OF4I Flex I/O Isolated Analog Output Module | 4-Channel
The Allen-Bradley 1794-OF4I delivers precision analog control with complete channel isolation. This advanced Flex I/O module from Rockwell Automation ensures reliable performance in critical industrial applications.
Technical Specifications & Performance Data
- Brand: Allen-Bradley / Rockwell Automation
- Model: 1794-OF4I
- Output Channels: 4 fully isolated analog outputs
- Voltage Outputs: ±10VDC, 0-10VDC, ±5VDC, 0-5VDC
- Current Outputs: 4-20mA, 0-20mA configurable ranges
- Resolution: 15 bits + sign (0.320 mV/count, 0.656 μA/count)
- Update Rate: 2.5ms or 5.0ms for all channels
- Step Response: <25 μs to 63% of full scale
- Accuracy: 0.1% full scale @ 25°C with minimal drift
- Isolation: 120V continuous (250V with 1794-TBN base)
- Power Supply: 19.2-31.2V DC (24V DC nominal)
Environmental Ratings & Durability
- Operating Temperature: 0°C to 55°C (32°F to 131°F)
- Storage Temperature: -40°C to 85°C (-40°F to 185°F)
- Vibration Resistance: 5g @ 10-500 Hz operating
- Shock Tolerance: 30g operating shock rating
- Humidity Range: 5-95% non-condensing relative humidity
- Enclosure Type: Open-style (requires protective housing)
Packaging & Shipping Details
- Includes one 1794-OF4I isolated analog output module
- Professional protective packaging ensures safe delivery
- Global express shipping via FedEx, UPS, and DHL
- 12-month quality warranty against manufacturing defects
Frequently Asked Questions
- What are the benefits of channel isolation?
Isolation prevents ground loops and noise interference between channels, ensuring signal integrity. - Can I mix different output types on the same module?
Yes, each channel independently configures for voltage or current output signals. - What is the maximum load for current outputs?
The module supports 0-750 ohm resistive loads for current output operation. - How does the update rate affect system performance?
The fast 2.5ms update rate ensures rapid response for critical control applications. - What safety certifications does this module have?
The module carries approvals for use in hazardous industrial environments.
Alternative Module Comparisons
- For AC output applications, consider the 1794-OA8I
- The 1794-OB16 provides digital DC output capabilities
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