Control device with second processing unit that accesses variable via first processing unit

A control device comprising a memory storing a first program that is executable according to a first executable form in which the first program is executed in its entirety in each execution and a second program that is executable according to a second executable form in which the second program is sequentially executed, the control device comprising:

• a first processing unit configured to execute the first program in its entirety to calculate a first command value for controlling a first controlled object in each control cycle determined in advance;
• a second processing unit configured to execute the second program to calculate a second command value for controlling a second controlled object in the each control cycle according to an intermediate code generated by an interpreter interpreting at least a part of the second program;
• and
• an output unit configured to output the first command value and the second command value in the each control cycle, wherein
• the first processing unit is configured to retain a predetermined variable used in both a calculation by the first processing unit and a calculation by the second processing unit, and the second processing unit is configured to access the predetermined variable via the first processing unit.