Patent 8195844 was granted and assigned to Siemens Aktiengesellschaft on June, 2012 by the United States Patent and Trademark Office.
Certain exemplary embodiments can provide a system, which can comprise a programmable logic controller (PLC). The system can comprise a serial communications port connected to the PLC. In certain exemplary embodiments, the system can comprise a controller adapted to enable a customer application program to access and control the serial communications port.