Engineering apparatus, control method, and program for executing a control application

A control method of an engineering apparatus for generating executable code from a control application, created in a first programming language, for controlling target hardware, the executable code causing the target hardware to operate, the control method comprising:

• generating, when the control application is edited while the engineering apparatus and the target hardware are connected online, a list for control application switching and a program for control application switching, wherein the list for control application switching and the program for control application switching are generated from the control application and expressed in a second programming language;
• and
• generating the executable code based on the list for control application switching, the program for control application switching, and a control service program;
• wherein when the executable code is downloaded onto the target hardware, the control service program causes the program for control application switching to be executed on the target hardware, and
• wherein the list for control application switching comprises:
• an instance list including size information of function block instances included in the control application;
• and
• an edit instance list including information related to a changed function block instance among the function block instances included in the control application.

A non-transitory computer-readable storage medium with an executable program stored thereon, wherein the executable program controls an engineering apparatus for generating executable code from a control application, created in a first programming language, for controlling target hardware, the executable code causing the target hardware to operate, the executable program causing the engineering apparatus to:

• generate, when the control application is edited while the engineering apparatus and the target hardware are connected online, a list for control application switching and a program for control application switching, wherein the list for control application switching and the program for control application switching are generated from the control application and expressed in a second programming language;
• and
• generate the executable code based on the list for control application switching, the program for control application switching, and a control service program;
• wherein when the executable code is downloaded onto the target hardware, the control service program causes the program for control application switching to be executed on the target hardware, and
• wherein the list for control application switching comprises:
• an instance list including size information of function block instances included in the control application;
• and
• an edit instance list including information related to a changed function block instance among the function block instances included in the control application.