Understanding the PLC Program Scan

Understanding how the PLC will scan and update your program is critical in programming and troubleshooting your system. Typically a PLC will solve your logic from left to right, top to bottom. The status of the memory from the previous rung is available for the next rung to use. We will look at a few examples to determine how the PLC will solve logic to illustrate the above program scanning. More information can be obtained at our website. https://accautomation.ca/understanding-the-plc-program-scan/ 00:00 Understanding the PLC Program Scan 00:35 Example 1 Ladder Logic 02:58 Example 2 Ladder Logic 05:16 Start Stop Jog Circuit Example The programming examples include the inputs, outputs, and a motor start, stop, jog circuit. https://www.accautomation.ca