Product Specification
| Manufacturer | AB |
| Product no. | 1756-IV16-A |
| Product type | Digital DC Input Module |
| Operating voltage range(1) | 79…132V AC, 47…63 Hz |
| Total backplane power | 0.58 W |
| Power dissipation, max | 4.5 W @ 60 °C (140 °F) |
| Thermal dissipation | 15.35 BTU/hr |
| Off-state voltage, max | 20V |
| Off-state current, max | 2.5 mA |
| Inrush current, max | 250 mA |
| Input impedance, max | 8.25 kΩ @ 132V AC, 60 Hz |
| Cyclic update time | 200 µs…750 ms |
| Time stamp of inputs | ±200 µs |
Product Details And Images
| Product Details | Product Images |
Description: The Allen-Bradley 1756-IV16-A is a high-performance 16-point DC digital input module specifically designed for use with the Rockwell Automation ControlLogix programmable automation controller (PAC) platform. It serves as a crucial interface, enabling the ControlLogix system to reliably acquire discrete (ON/OFF) signals from a variety of field devices in industrial environments. Key Feature: 16 Isolated DC Inputs: The module provides 16 individual input points, each capable of reading DC voltage signals (typically 10-30V DC). A significant feature is its isolation, which can be channel-to-channel or group isolation, enhancing noise immunity, preventing ground loops, and protecting the ControlLogix backplane from field faults. Fast Response Time: Engineered for rapid signal acquisition, the 1756-IV16-A offers a fast response time, critical for applications requiring quick detection of changes in input status, such as safety interlocks or high-speed machine control. Built-in Diagnostics: It incorporates advanced diagnostic capabilities, including detection of open-circuit conditions (open wire) on input lines, input status monitoring, and potentially fuse status (depending on the exact hardware revision and configuration). These diagnostics simplify troubleshooting and reduce downtime. Hot-Swappable: This module is designed for hot-swap capability, meaning it can be inserted or removed from a powered ControlLogix chassis without interrupting power to other modules in the system, enabling quicker maintenance and reducing overall system downtime. Robust Performance: Built to deliver reliable and stable performance in demanding industrial environments. Seamless ControlLogix Integration: It integrates seamlessly into the ControlLogix architecture, allowing for easy configuration using Rockwell Automation's Studio 5000 Logix Designer software. |  |
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