Downloading Source Code to and from the PLC CODESYS provides the capability of loading project source code to a PLC as a project archive. You can then transfer this project archive back to the develop

Distributing Application Code to Different Memory Areas CODESYS provides the capability of storing application code in different memory areas on the controller. The requirement is that you are using a

Testing and Debugging CODESYS provides various options for testing your application and detecting errors. You can start your application in simulation mode, even without connecting any hardware. Using

Testing in Simulation Mode Use simulation mode for testing and debugging your program when you do not have a physical target device. In this mode, the application is started on a simulated device. The

Stepping Through a Program You can step through an application and navigate the code. This is useful to check the status of your code at runtime. You can examine the call process, track variable value

compiler version 3.5.11.x or 3.5.12.x, enable

:= 0; END_VAR VAR [...] :=0; END_VAR VAR [...] VarPersistent : INT:= 0; END

Flow Control With flow control, you can monitor the processing of the application program. Flow control is provided for the ST, FBD, LD, and CFC language editors. With an activated flow control, CODES

Determining the Current Processing Position with the Call Stack You can use the call stack for determining the current position of the program flow. This function is very useful when stepping into pro

Checking the task list The Task List tab of the device editor indicates in an overview the tasks that process the individual inputs and outputs of the I/O mapping of your application and the priority