Siemens Aktiengesellschaft

Siemens Industry, Inc.

William Keith Bryant

Temple Luke Fulton

Steven Michael Hausman

James W Cornett

Gregory J Karklins

Lothar Trapp

Galen Freemon

Thomas Brian Hartley

Steven M Hausman

Jeffrey Howe

A Functional Safety Counter Module is provided and it comprises input circuitry, test circuitry, a first microcontroller including a first hardware counter, a second hardware counter, a first storage device that stores a first firmware algorithm code to execute a counter pattern test in order to detect a short open input signal and/or a failure in counting capability of the first microcontroller and a second microcontroller including a third hardware counter, a fourth hardware counter, a second storage device that stores a second firmware algorithm code. The first and second firmware algorithm codes are configured to resynchronize and restore respectively a first counter or a second counter after the counter pattern test and are configured to detect an offset and adjust during a resynchronization process to account for the offset such that to successfully resynchronize two separate resynchronization algorithm codes are used depending on an input frequency of counter signals input to four hardware counters.

Functional safety high-speed counter module including diagnostics circuitry for performing counter pattern test

Methods, apparatus, and systems are provided for a web browser accessible data file system on a programmable logic controller (PLC). The invention includes a PLC which includes a controller module; a file system module coupled to the controller module and adapted to persistently store archive data files; a memory module that stores binary data coupled to the controller module; and a user program module that stores instructions adapted to be executed by the controller module. The instructions may include creating an archive file in a user application format in the file system module; storing binary data in the memory module; converting the binary data to the user application format of the archive file; and storing the converted binary data as an entry in the archive file in the file system module. Numerous additional aspects are disclosed.

Methods and apparatus for a file system on a programmable logic controller

Certain exemplary embodiments comprise a system. The system can comprise a user interface renderer, which can be adapted to render a plurality of distinct user interfaces. Each user interface from the plurality of distinct user interfaces can be adapted to configure a corresponding software application from a plurality of software applications associated with operating a programmable logic controller (PLC).

Devices, systems, and methods for configuring a programmable logic controller

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.

Systems, devices, and/or methods for managing communications

Growing community of inventors

Johnson City, TN, United States of America

William Keith Bryant