Rockwell Automation Technologies Incorporated

Gregory A Majcher

John Patrick Caspers

Steven P Blech

Wayne H Wielebski

Robert J Kretschmann

Kendal R Harris

Edward C Korsberg

Kenwood H Hall

Gregg M Sichner

Sivaram Balasubramanian

Anthony Gerard Gibart

Scott A Pierce

Raymond R Husted

Jonathan D Bradford

Patrick D Telljohann

Gregory J Svetina

Tao Song

Zhen Wei

Harsh Shah

Chandresh R Chaudhari

Qing Jia

Jian Feng

James Edward Joe

Sivaram Balasubramania

Jiang Feng

A method and system for interacting with data frames passing through a module connected to an industrial network is disclosed. Each module includes an aggregation unit located on the network interface above the physical layer. To transmit data, the aggregation unit reads a header from a dynamic data packet to determine if the module is a participant module for the packet. If so, the aggregation unit inserts data from the module into the data packet and transmits the packet to another module. To receive data, the aggregation unit reads a header from the data packet to determine whether the data packet includes data for the module. If so, the aggregation unit reads the data and passes the data packet to another module. If the aggregation unit determines that a data packet is not intended for the module, the data packet is passed to another module with no further interaction.

Method and system for data aggregation in an industrial communication protocol

A method and system for assigning slot addresses to modules in an industrial control system is disclosed. The modules are set up in a daisy chain topology. On power-up, a first module in the chain reads its slot address from a user configurable input or sets its slot address to a default value. The first module communicates to its immediate right neighbor using a special, one-hop message. The neighboring modules communicate to receive each other's information. The first module then sets an enable signal between the modules and sends a slot number to the neighbor in a firmware message. The neighbor checks if the enable signal is set and verifies that the slot number is a valid slot number. If so, then the neighboring module accepts the slot and repeats the same procedure to its next immediate neighbor, and so on until the last module.

Method and system for defining slot addresses

The present invention provides techniques for encapsulating device-level embedded logic into user-defined instructions using configuration software. More specifically, the disclosed embodiments enable add-on instructions for device configuration embedded logic. Programming interfaces specific to an application or device may be combined into a single instruction as a reusable Macro component that may be reused in the same or different applications or devices.

Macro function block for encapsulating device-level embedded logic

A method and control system are provided for controlling a modular conveyor system, which may be networked together with other such systems in order to implement a control strategy for a modular conveyor system. The control system comprises a communications port for interconnection of the control system with a network for sending outgoing addressed data to other devices on the address-based network and for receiving incoming addressed data from other devices. The control system further comprises a logic system, which may receive a signal from an object sensor and provide a control signal or output adapted to control activation of a motorized roller assembly, based on an input signal from the object sensor or the communications port. The logic system may provide for single step operation whereby system troubleshooting may be facilitated, and in addition may provide situation aware and output value source selection functionality.

Driver board control system for modular conveyor with address-based network for inter-conveyer communication

A method and apparatus are provided which allow a user to define an output device behavior in a variety of status and/or event circumstances via creating a binding or logical connection between a logic function and one or more status/event indicators. The method provides for user-defined output behavior through linking a logical function with system and module status/event indicators, whereby the output value may be determined according to the status/event indicators and user-defined function blocks. Also disclosed is an output device with an output providing an output signal according to an output value, a communication interface adapted to receive messages from a network, an indicator adapted to receive message information from a network and providing indicator data, and a logic unit which receives message information from the network, indicator data from the indicator, and which performs a logic function. The logic unit selectively provides the output value to the output according to one of the message information and the logic function.

Situational aware output configuration and execution

An electrical communications architecture for implementation in a conveyor system, and a method of communicating information among components of a conveyor system, are disclosed. The electrical communications architecture includes a central control device, first and second conveyor modules, and an address-based network. The conveyor modules respectively support first and second control devices and associated first and second sensors. The network couples all of the control devices, and each control device has a respective address on the network. Information is communicated between the associated sensors and control devices by way of respective dedicated connections, and information is communicated among the control devices by way of the network. The first control device operates based upon a program including instructions from the central control device indicative of the address of the second control device with which the second sensor is associated, from which the first control device is to receive sensor information.

Electrical communications architecture

A method and system are provided for executing a control function or program which minimizes or overcomes the shortcomings of conventional systems. The invention allows a user of a distributed control system to place one or more control devices into a step mode, wherein the devices will execute a specified number of iterations of their internal logic or control programs, or execute such programs for a specified time period, and then stop or suspend execution. The user may then perform system diagnostics, for example, by interrogating certain modules to obtain output and input values, etc. The system may then be further iterated and the method repeated, so as to enable the identification of logic programming and/or hardware problems in a system.

Strobed synchronization providing diagnostics in a distributed system

Driver board control system for modular conveyer with address-based network for inter-conveyor communication

A method and system for selecting an output value source for an industrial control device are disclosed. The invention avoids the problems associated with conventional output devices by allowing a user to define one or more attributes associated with the output device, as well as defining a binding to local logic. The user may thereby determine or select the output value source which will be used by the output device under a variety of system conditions, depending on configuration of the output device or module, the current state of the module, and the state of a network. The method provides associating the output device with a logic function, providing the output value according to the logic function, ignoring explicit messages from the network, ignoring value messages from the network, selectively ignoring fault messages according to an override attribute, and selectively ignoring idle messages according to the override attribute. In addition, a system is provided for implementing the output value source selection for an output device, and an output module is provided which allow a user to define the source of the output value.

Method and system for selecting controller output value source

Driver board control system for modular conveyor with address-based network for inter-conveyor communication

Growing community of inventors

Broadview Heights, OH, United States of America

Gregory A Majcher