Product Details
Overview
The Allen-Bradley 1756-OF8I is an isolated 8-point analog output module from the ControlLogix series. It provides precise voltage and current outputs for process and motion control applications. Each channel is individually isolated to ensure reliable signal integrity and reduce electrical interference.
Technical Specifications
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Manufacturer: Allen-Bradley
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Product Line: ControlLogix
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Model / Part Number: 1756-OF8I
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Product Type: Isolated Analog Output Module
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Weight: 0.50 lbs (0.23 kg)
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Number of Outputs: 8 isolated channels (current/voltage)
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Output Current Range: 0–20 mA, 4–20 mA
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Output Voltage Range: ±10V, 0–10V, 0–5V
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Resolution: 15–16 bits
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Data Format: IEEE 32-bit floating point
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Conversion Method: R-2R ladder DAC, monotonic with no missing codes
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Open Circuit Detection: Supported (current mode only)
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Short Circuit Detection: Supported (voltage mode only)
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Overvoltage Protection: ±30V DC
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Isolation Voltage: 50V DC continuous
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Current Draw (24V DC): 400 mA
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Power Dissipation: 6.5 W
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Thermal Dissipation: 22.2 BTU/hr
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Terminal Blocks Supported: 1756-TBNH, 1756-TBSH, 1756-TBCH, 1756-TBS6H
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Enclosure Type: Open-style
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Mounting: Chassis-based
Key Features
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Eight fully isolated analog output channels for high signal integrity
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Supports both voltage and current outputs
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High 16-bit resolution for precise control
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Built-in protection against open and short circuits
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±30V DC overvoltage protection for safety
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Compatible with multiple removable terminal block options
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Suitable for demanding process control applications
Application Scenarios
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Industrial process and motion control systems
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PID loop control in automation
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Control of drives, valves, and actuators
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Precision analog instrumentation
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Distributed I/O systems in ControlLogix environments
FAQs
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Q: What output types are supported?
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A: Voltage (±10V, 0–10V, 0–5V) and current (0–20mA, 4–20mA).
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Q: Are channels isolated?
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A: Yes, each of the eight channels is individually isolated.
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Q: Which terminal blocks can be used?
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A: Compatible blocks include 1756-TBNH, 1756-TBSH, 1756-TBCH, 1756-TBS6H.
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Q: How is overvoltage handled?
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A: The module provides ±30V DC overvoltage protection for both current and voltage outputs.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
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Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.