The PID function cannot be applied to the RAM area.

When the PIC/PID function is used, multiple copies of a single application can be stored in the ROM and each copy can be executed. However, copies of a single application cannot be executed at the same time because the RAM areas for them overlap each other.

The standard startup program (created by the integrated development environment as described in section 8.3 Startup Program Creation) cannot be used to start up an application without change. Create a startup program as described in 8.5.7 Application Startup.