Description:

The Allen-Bradley 1746-NO4I SLC 500 Analog Output Module is an industrial PLC expansion module designed to provide four isolated analog output channels for process control and automation systems. Built for use with SLC 500 programmable controllers, this module converts digital control signals from the PLC into precise analog outputs for controlling field devices. Maintenance teams, OEM machine builders, and system integrators use this module for system upgrades, I/O expansion, control panel retrofits, and replacement of existing analog output modules in industrial automation environments.

Applications:

The 1746-NO4I analog output module is widely used in industrial automation systems requiring accurate control of analog field devices. Typical installations include process control systems, HVAC equipment, water and wastewater treatment plants, batching and dosing systems, and manufacturing lines where PLCs regulate valves, drives, actuators, and other devices requiring variable analog signals for operation.

Technical Specifications:

• Manufacturer: Allen-Bradley
• Part Number: 1746-NO4I
• Series: SLC 500 I/O
• Number of Channels: 4 analog outputs (isolated)
• Output Types: Voltage or current selectable per channel
• Supported Signals: 0–10 V, ±10 V, 0–20 mA, 4–20 mA
• Resolution: 16-bit analog resolution
• Isolation: Channel-to-channel and backplane isolation
• Mounting Type: Rack-mounted module
• Communication Interface: SLC 500 backplane connection
• Compatible Controllers: Allen-Bradley SLC 500 PLC systems
• Operating Temperature: 0°C to 60°C

Common Replacements:

• Allen-Bradley 1746-NO4V
• Allen-Bradley 1769-OF4
• Siemens 6ES7 332-5HF00-0AB0