Allen-Bradley 1756-OB16IS CIPSync Isolated Output Module

Allen-Bradley ControlLogix 1756-OB16IS Scheduled Isolated Output Module

The 1756-OB16IS is a scheduled isolated output module from the Allen-Bradley ControlLogix series. Rockwell Automation designed this module for precision timing applications requiring CIPSync compatibility. It features 16 isolated DC outputs with 8 synchronized scheduled outputs and ±16.7μs CST synchronization accuracy.

Key Features

• 16 isolated DC outputs (10-30V)
• 8 synchronized scheduled outputs for precision timing
• 1ms ON / 2ms OFF switching speed
• CIPSync architecture compatible
• Individual channel isolation for enhanced safety
• Single-slot module saves chassis space

Technical Specifications

• Brand: Allen-Bradley / Rockwell Automation
• Series: ControlLogix
• Model: 1756-OB16IS
• Type: Scheduled Isolated Output Module
• Output Type: Sinking/Sourcing DC
• Outputs: 16 total (8 synchronized)
• Voltage Range: 10-30V DC
• Current Rating: 2A @ 30°C / 1A @ 60°C
• Leakage Current: 0.5mA per point
• Switching Speed: 1ms ON / 2ms OFF
• Backplane Power: 1.8W
• Isolation: 250V (output-to-output)
• Sync Accuracy: ±16.7μs CST
• Operating Temp: 0°C to 60°C

Synchronization Features

• 8 time-coordinated outputs for precision applications
• CIPSync compatible with system-wide clock alignment
• Precise event sequencing with ±16.7μs accuracy
• Direct backplane synchronization

Compatibility

• All ControlLogix chassis sizes supported
• Programmed with Studio 5000 Logix Designer
• Requires CIPSync architecture for scheduled outputs

Package Contents

• 1x Allen-Bradley 1756-OB16IS scheduled isolated output module
• 1x installation guide
• 1x configuration manual

Ordering Information

• In stock - ready to ship
• FedEx/UPS/DHL options
• 1-year manufacturer warranty
• 24/7 technical support available

Technical Documentation

📥 Download Product Datasheet PDF

FAQ

1. How many synchronized outputs does the 1756-OB16IS have?

The module features 8 synchronized scheduled outputs out of 16 total isolated outputs.

2. What is the synchronization accuracy of this module?

It provides ±16.7μs CST accuracy with CIPSync architecture.

3. What is the current rating at different temperatures?

The 1756-OB16IS is rated 2A at 30°C and 1A at 60°C per output.