A system includes an industrial controller comprising a first processor. The first processor is configured to execute a substantially deterministic control process. The first processor is further configured to communicate with a second processor included in a communications interface system and communicatively coupled to the first processor, wherein the first processor is configured to communicate an asynchronous data to the second processor via an industrial communications protocol during the execution of the control process, and the second processor is configured to retrieve external data from an external system based on the asynchronous signal, and to communicate the external data to the control system via an Ethernet-based communications protocol.