ISPSoft User Manual If the POU is not protected by a POU password, there will be two boxes used to set a POU password in the Protection section. If the users want to set a POU password, they have to type the same password in the two boxes. The users can only type English letters, numerical digits, and marks in the window. A POU password is case-sensitive. After the setting of a POU password is complete, the users can click O K. If the POU is protected by a POU password, there will be one box used to unlock the POU password in the Protection section. If the users want to unlock the POU password, they can type the correct password in the box, and click OK .
19.5 Subroutine Password * Currently. DVPxxMC series does not support subroutine password . 19.5.1 Introduction of a Subroutine Passwords After the program in a project for a DVP series PLC is compiled, the object code produced by the system may include a main program, a general subroutine, and an interrupt subroutine. The subroutine is transformed from the source code in the POUs of the function block type in the project.
If the Program checkbox in the Transfer Setup window is not selected, and the Object Code checkbox in the Transfer Setup window is selected, the general subroutine which is a part of the object code will be transformed into POUs of the function blocks type in ISPSoft after the object code is uploaded. Owing to the fact that a POU password protects the source code in a POU, the POUs transformed from the object code are not protected by POU passwords. Users can open the POUs of the function block type at will, and analyze the contents of the POUs. Do not select program. 19-10