Excellent PLC
Product Introduction
The Allen-Bradley 1756-IH16I ControlLogix DC Isolated Input Module is a high-density digital input module designed for ControlLogix automation systems that require reliable monitoring of high-voltage DC input signals. It provides 16 isolated DC input points, enabling secure and stable signal acquisition from field devices operating at elevated voltage levels.
Supporting 125 VDC input signals, the module is well suited for industrial applications where electrical isolation is critical to protect control systems from voltage transients and electrical noise. Each input channel is electrically isolated, helping to improve system reliability and reduce the risk of interference or false signal detection.
The 1756-IH16I integrates seamlessly into ControlLogix architectures, offering dependable digital input performance for automation systems that demand robust isolation, high input density, and consistent signal integrity.
Product Specifications
| Parameter | Details |
|---|---|
| Model | 1756-IH16I |
| Series | ControlLogix |
| Type | DC Isolated Input Module |
| Input Points | 16 |
| Input Voltage | 125 VDC |
| Input Type | Digital DC |
| Isolation | Channel-to-channel and channel-to-backplane isolation |
| Connector Type | 20-pin |
| Application Voltage Class | High-voltage DC inputs |
| Dimensions | 145.2 × 34.6 × 139.6 mm |
| Weight | 0.181 kg |
Applications
• Industrial Control Systems: Monitors high-voltage DC signals from switches, relays, and control devices.
• Process Automation: Provides reliable digital input acquisition for DC-based field instrumentation.
• Electrical Isolation Applications: Suitable for systems requiring strong isolation to protect controllers and backplane electronics.
• Machine Safety and Interlocking: Reads status signals from interlock circuits and control relays.
• ControlLogix-Based Architectures: Integrates directly into ControlLogix racks for centralized digital input management.
Advantages
• High-Voltage DC Input Support: Designed specifically for 125 VDC input signals, expanding application flexibility.
• Fully Isolated Inputs: Each channel provides electrical isolation, improving system safety and signal reliability.
• High Input Density: Offers 16 input points in a single module, reducing rack space requirements.
• Improved Noise Immunity: Isolation helps minimize electrical interference and false signal detection.
• Reliable ControlLogix Integration: Engineered for stable operation within ControlLogix control systems.
• Industrial-Grade Design: Suitable for continuous operation in demanding industrial environments.
