A-B 1756-OF8 Analog Output Module

Product Description

Allen-Bradley 1756-OF8 is a ControlLogix 8-Point Analog Output Module manufactured by Rockwell Automation. It provides 8 configurable analog output channels supporting both current and voltage output signals, and is designed for use in ControlLogix chassis-based automation systems.

The module is commonly used to send analog control signals to devices such as variable frequency drives, control valves, actuators, and process instruments.

Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1756-OF8
• Product Type: Analog Output Module
• Series: ControlLogix
• Output Channels: 8 points
• Output Type: Voltage / Current Analog Output
• Voltage Range: ±10 VDC
• Current Range: 0…20 mA
• Resolution: 15 bit
• Data Format: IEEE 32-bit floating point / Integer mode
• Terminal Type: 20-pin removable terminal block
• Module Width: 1 slot
• Mounting: ControlLogix chassis installation
• Short Circuit Protection: Electronic current limiting
• Overvoltage Protection: 24V DC protection

Functions

• Converts digital PLC commands into analog output signals
• Controls field devices requiring voltage or current references
• Provides analog speed reference signals for drives
• Controls proportional valves and actuators
• Outputs process control signals such as 0–20mA or voltage commands
• Communicates with ControlLogix processors through the backplane

Advantages & Features

• 8-channel analog output capability
• Supports both voltage and current output modes
• High-resolution signal conversion
• Compatible with ControlLogix automation platforms
• Suitable for process control applications
• Electronic protection improves module reliability
• Compact one-slot design saves chassis space

Applications

• Industrial process control
• PLC analog signal output systems
• Variable frequency drive speed control
• Valve and actuator control
• Chemical and manufacturing equipment
• Water treatment systems
• Factory automation systems

Notes

• 1756-OF8 is an analog output module, not an input module
• Requires a compatible ControlLogix chassis and power supply
• Requires a suitable 20-pin removable terminal block (RTB) for wiring
• Verify output type configuration (voltage/current) before operation
• Confirm field device signal requirements before connection