1756-dhrio_e_communication_module

Status: In Stock

Product Overview

The 1756-DICAM Digitax Digital Cam Switch Unit​ is a high-performance, programmable electronic cam controller designed as a direct replacement for traditional mechanical cam switches in demanding industrial automation applications. Manufactured by Allen-Bradley (Rockwell Automation), this module integrates seamlessly into the ControlLogix 1756 platform, offering unparalleled precision and flexibility for motion control tasks. It functions by converting real-time position feedback from encoders into precisely timed output sequences, eliminating the physical wear and mechanical adjustment headaches associated with conventional systems. The 1756-DICAM​ is engineered for applications requiring high-speed, repetitive switching operations, such as packaging, printing, and converting machinery, where timing accuracy is critical to product quality and throughput.At the heart of the 1756-DICAM​ is its ability to store and execute complex cam profiles digitally. It supports a vast library of programmable cams and sequences, allowing engineers to define intricate switching patterns that can be modified on-the-fly without any physical intervention. This digital approach not only enhances reliability but also introduces advanced features like speed compensation, which dynamically adjusts switch points to account for variations in machine velocity, ensuring consistent performance across different operating speeds. The module’s robust design, featuring galvanic isolation on I/O channels and a dedicated backplane interface, makes the 1756-DICAM​ a cornerstone for building resilient and easily maintainable automation systems in harsh industrial environments.

1756-dhrio_e_communication_module插图

 

Technical Specifications

Parameter Name Parameter Value
Product Model 1756-DICAM​ (Digitax Digital Cam Switch)
Manufacturer Allen-Bradley (Rockwell Automation)
Product Type Digital Cam Switch Module
Compatible Platform ControlLogix 1756 I/O Rack
Number of Inputs 8 (Galvanically Isolated)
Number of Outputs 24 (Galvanically Isolated, Expandable)
Programmable Cams Up to 1200 (Expandable to 10,000)
Program Storage 32,768 Programs
Cycle Time Adjustable, typically 70 µs
Delay Compensation 0 to 9999.9 ms
Power Supply 24V DC via Backplane
Power Consumption 450 mA @ 24V DC
Output Current 0.2 A per output (0.4 A at 50% duty cycle)
Operating Temperature 0 °C to 55 °C
Enclosure Rating IP20

 

Main Features and Advantages

High-speed precision control: The 1756-DICAM​ operates with an exceptionally fast cycle time, enabling microsecond-level accuracy in output switching. This high-speed processing is crucial for synchronizing actuators, solenoids, and tools with the exact position of a machine shaft, ensuring operations like cutting, sealing, or filling occur at the precise moment required. The module’s ability to handle high-resolution encoder inputs and execute complex cam profiles with minimal latency makes it ideal for high-throughput production lines where even minor timing errors can lead to significant waste or downtime.Advanced speed compensation: Unlike mechanical cams, which have fixed profiles that can lead to timing drift at different speeds, the 1756-DICAM​ features sophisticated speed compensation algorithms. This technology automatically adjusts the actuation points of the digital cams based on real-time machine velocity. This means that a packaging machine can maintain perfect registration and timing whether it is running at slow jog speed or at full production rate, eliminating the need for manual recalibration and ensuring consistent product quality across the entire speed range.Unmatched flexibility and diagnostics: The module replaces an entire bank of mechanical cams and switches with a single, software-configurable unit. Engineers can create, modify, and optimize cam profiles using dedicated software (such as CamCon DC1756) without ever touching a physical component. This drastically reduces changeover times and allows for rapid prototyping of new machine sequences. Furthermore, the 1756-DICAM​ offers extensive diagnostic capabilities through its front-panel status LEDs and software interface, providing clear visibility into input states, output activity, and system faults, which simplifies troubleshooting and reduces mean time to repair (MTTR).

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