Controller with agent functionality

A controller configured to operate as at least one agent, the controller comprising:

• at least one processing device;
• and at least one storage medium that is in communication with the at least one processing device, wherein the at least one storage medium stores a plurality of program portions that are executed by the at least one processing device, and wherein the plurality of program portions includes a first program portion capable of generating first signals that are commands to be provided to a controlled device;
• and a second program portion capable of governing standard agent-type functionality;
• and a third program portion capable of governing application-specific agent-type functionality,
• wherein the second program portion includes a planner that governs at least a portion of the standard agent-type functionality including creating and interpreting bid request messages and bid messages, and
• wherein the second program portion is in communication with base firmware, wherein the bid request messages and bid messages that are created by the planner are provided to the base firmware, which is capable of formatting at least some of the bid request messages and bid messages for transmission onto a network according to a network protocol selected from the group consisting of Ethernet, ControlNet and DeviceNet.

A controller configured to operate as at least one agent, the controller comprising:

• at least one processing device;
• and at least one storage medium that is in communication with the at least one processing device, wherein the at least one storage medium stores a plurality of program portions that are executed by the at least one processing device, and wherein the plurality of program portions includes a first program portion capable of generating first signals that are commands to be provided to a controlled device;
• and a second program portion capable of governing standard agent-type functionality;
• and a third program portion capable of governing application-specific agent-type functionality,
• wherein the second program portion includes at least one directory facilitator,
• wherein each directory facilitator is capable of accessing a first data portion in which addresses corresponding to a first plurality of agents are listed, and a second data portion in which capabilities corresponding to a second plurality of agents are listed,
• wherein the second program portion includes both a local directory facilitator and a global directory facilitator, wherein the directory facilitators are permanent and generic components, and wherein the controller has employs any of a variety of protocols to organize intercommunications among the directory facilitators,
• wherein the third program portion includes at least one of application-specific agent scripts portion, a diagnostics portion and an equipment model portion, and
• wherein the third program portion includes each of the application-specific agent scripts portion, the diagnostics portion and the equipment model portion, wherein the diagnostics portion is in communication with the first program portion, wherein each of the application-specific agent scripts portion, the diagnostics portion and the equipment model portion is in communication with a planner portion of the second program portion, and wherein the application-specific agent scripts portion is further in communication with an execution controller portion of the second program portion.

A distributed control system for controlling a process performed by a plurality of controllable devices including first and second controllable devices, the distributed control system comprising:

• a network;
• and first and second controllers coupled to the network, wherein the first and second controllers include first and second processors, respectively, and first and second storage media, respectively;
• wherein first and second application-specific control programs are stored on the first and second storage media, respectively, the first and second control programs enabling the respective first and second controllers to generate commands to be provided to the first and second controllable devices, respectively;
• and wherein first and second agent-related programs are additionally stored on the first and second storage media, respectively, the first and second agent-related programs each including agent-type programming to enable the first and second controllers to operate as agents, to communicate with one another via the network, and to interact with the first and second control programs to govern operations of the first and second controllable devices, wherein the each of the first and second agent-related programs includes a first portion that provides for generalized agent functionality and a second portion that is specifically configured for operation in relation to at least one of a characteristic of the process, a characteristic of the first and second control programs, respectively, and a characteristic of the first and second controllable devices, respectively.