Allen-Bradley ControlLogix 24 VDC high-speed I/O modules

The Allen-Bradley ControlLogix 24 VDC I/O modules, used with the ControlLogix 5570 family of PACs, are designed to improve total system response time (SRT) through new hardware technology and peer-to-peer communication capabilities that reduce the time it takes for modules to communicate with the controller. Since SRT equates to the time required for input module response, controller processing and output module response, reducing I/O latency results in higher machine speeds.

For further performance improvement, the modules also function in peer-to-peer mode, bypassing the controller by establishing in-chassis connections that allow I/O modules to communicate directly with each other. Shifting task management to the I/O modules can relieve a controller of the overhead required to process and direct I/O modules, helping improve reliability in program execution and throughput. In peer-to-peer mode, input to output response time can be less than 100 μs. The peer-to-peer capabilities are suitable for applications with fast detect-energise sequences, such as high-speed parts rejection.

The ControlLogix 24 VDC I/O modules can be used with the ControlLogix 5570 PAC or any other Rockwell Automation programmable controller.