The Allen Bradley 1746-NO4I is an Analog Output Module designed for use with SLC 500 PLC systems. This module features four (4) current output channels that provide a programmable output range of 0 to +20 mA, making it ideal for process control applications requiring precise current signal generation. It is compatible with both fixed and modular SLC 500 hardware configurations, providing seamless integration and accurate control over analog devices such as actuators, valves, and variable frequency drives.
Technical Specifications
- Manufacturer: Allen Bradley (Rockwell Automation)
- Model: 1746-NO4I (Alternate SKU – 1746-N04I)
- Series: SLC 500
- Module Type: Analog Output Module
- Number of Output Channels: 4 Current Outputs
- Output Signal Range: 0 to +20 mA
- Resolution: 12-bit (4,096 counts)
- Output Load Resistance: 0 to 600 Ohms
- Conversion Method: Digital-to-Analog Conversion (DAC)
- Backplane Current Draw: 60 mA at 5V DC / 195 mA at 24V DC
- Update Time: 512 microseconds for all four channels
- Isolation Voltage: 500V AC (channel-to-backplane and channel-to-channel)
- Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
- Storage Temperature Range: -40°C to 85°C (-40°F to 185°F)
- Certifications: CE, UL, C-UL, Class 1 Div 2 Hazardous Locations
Key Features
- Four independent current output channels for precise analog control
- 0 to +20 mA programmable range for compatibility with industrial devices
- 12-bit resolution ensures accurate signal generation
- Backplane-powered, reducing the need for external power sources
- Fast update time for real-time process control
- High isolation voltage for noise immunity and system protection
- Compatible with SLC 500 fixed and modular chassis configurations
Compatible Allen Bradley Components
- Allen Bradley SLC 500 Processors (1747-L532, 1747-L542, etc.)
- Allen Bradley 1746 Series I/O Modules
- Allen Bradley 1746-A4, 1746-A7, and 1746-A10 Chassis
- Allen Bradley PanelView HMIs for process monitoring
Industry Applications
- Process automation in manufacturing and industrial facilities
- Motor speed control in Variable Frequency Drives (VFDs)
- Valve positioning in fluid and pneumatic systems
- Temperature control systems using industrial heaters or coolers
- Water and wastewater treatment facilities for chemical dosing control
- Batch processing and proportional control in food and beverage production
Installation & Operational Notes
- Ensure compatibility with the SLC 500 PLC system before installation
- Properly configure the module in the RSLogix 500 software for accurate output scaling
- Connect output channels to analog control devices such as actuators or drives
- Observe wiring best practices to minimize electrical noise interference
- Regularly inspect and maintain the module to ensure optimal performance
Request a Quote now or call us at 1-800-755-2883 for expert assistance.
TCI Supply is not an authorized Allen Bradley Distributor