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
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.
Mastering Modern Industrial Joystick Controls in Heavy Automation
Industrial joysticks play a pivotal role in human-machine interaction across heavy material handling and mobile hydraulics. These tactile controllers translate complex operator movements into precise electrical signals for PLCs, motion controllers, and DCS networks. Consequently, selecting and installing the right joystick architecture ensures operator safety, reduces fatigue, and optimizes equipment performance.