Allen Bradley AB Rockwell Automation Analog Output Module 1771-OFE1 /B

The Allen-Bradley 1771-OFE1/B Analog Output Module is a versatile component designed for the PLC-5 series, providing precise analog voltage outputs for various industrial applications.

Key Features

• Four Isolated Differential Outputs: Each channel offers 1000V isolation, ensuring reliable and interference-free signal transmission.
• Selectable Voltage Ranges: Supports output ranges of +1 to +5 VDC, 0 to +10 VDC, and -10 to +10 VDC, accommodating diverse application requirements.
• High Resolution: 12-bit digital-to-analog conversion provides accurate signal representation.
• Data Format Flexibility: Compatible with both Binary-Coded Decimal (BCD) and natural binary formats.
• Efficient Power Usage: Draws 1.5 Amperes from the backplane, eliminating the need for external power sources.
• Compact Design: Occupies a single slot in the 1771 I/O chassis, optimizing space utilization.

Technical Specifications

• Accuracy: ±0.1% of full scale; ±1/2 Least Significant Digit (LSD) in BCD mode; ±1/2 Least Significant Bit (LSB) in binary mode.
• Converter Setting Time: 0.8 milliseconds.
• Internal Scan Rate: 8.0 milliseconds for BCD data with scaling; 1.6 milliseconds for binary data without scaling.
• Power Dissipation: 7.9 Watts.
• Thermal Dissipation: 26.9 BTU/hr.
• Operating Temperature: 0 to 60°C (32 to 140°F).
• Storage Temperature: -40 to 85°C (-40 to 185°F).
• Vibration Resistance: 2g at 10-500 Hz.
• Shock Resistance: 30g operating.

Applications

The 1771-OFE1/B module is ideal for controlling devices such as motor speed controllers, valve positioners, signal converters, and recorders. Its precise voltage outputs and robust design make it suitable for demanding industrial environments.

Installation and Compatibility

Designed for seamless integration into the 1771 I/O chassis, this module requires no external power supply, drawing all necessary power from the backplane. Its compact form factor allows for efficient use of space within the control system.

Conclusion

The Allen-Bradley 1771-OFE1/B Analog Output Module offers reliable and accurate analog voltage outputs, making it a valuable addition to any PLC-5 system requiring precise analog control capabilities.