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Sample Ladder Logic LD Program: Basic Motion (Power, Home, Cycle)

Here's a simple sample Ladder Logic LD program. It starts when the PLC application starts. It enables the motor (MC_Power), homes the axis (MC_Home), and then extends and retracts repeatedly with a time delay after each move.

Here's a video of it running within the PAC IDE software:


Note a PAC320 hardware controller isn't necessary to run this. You can use an application with a CODESYS SoftMotion Win V3. This is launched from Start > All Programs > Parker Hannifin > Parker Automation Manager > CODESYS SoftMotion Win V3

Under Online > Simulation. Then you can after Build (F11), click Online > Login. This will create a virtual PLC and allow you to run PLC simulation (Play or F5). Here's a screen capture of the program online and the visualization and project archive:



Note the CODESYS SoftMotion Win V3 will launch a DOS window allowing simulation of motion and will run for two hours before disabling. This window can be minimized but motion simulation is disabled when this window is closed.
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