Module interface

A method in a process control system, comprising:

• defining, by a control module software interface, a set of interface parameters for a control module based on a strategy type associated with a control strategy of the control module;
• linking, by the control module software interface, each interface parameter of the set of interface parameters to a respective internal parameter of one or more internal parameters of the control module, wherein the control module is configured to operate on the one or more internal parameters to execute the control strategy in order to generate control signals for controlling one or more field devices positioned in a process control plant;
• allowing, by the control module software interface, at least one of:
• one or more other control modules, and one or more external applications that are external to the control module, to access the set of interface parameters for the control module to one or more of:
• (i) write to or (ii) read to the set of interface parameters for the control module, wherein the one or more other control modules are configured to generate control signals for controlling the one or more field devices, and wherein the one or more external applications include one or more of a configuration application or a display application;
• and
• denying, by the control module software interface, the one or more other control modules, and the one or more external applications that are external to the control module, access to the one or more internal parameters of the control module.