Abstract: A method and apparatus for a communication system for facilitating communication on the network. Identification of a network device, preferably a controller or IO device, is based on a physical location of device. Accordingly, the physical location of the network device is determined by a device locator. The physical location of each network device is used to associate a network identifier, i.e., network address, with the network device to facilitate network communication with other devices. The network identifier is associated with the network device in response to a signal transmitted from the network device requesting the network identifier. A mapping method is used to convert a map of physical locations to one or more address tables so as to allow a controlling station to associate the network identifier with the network device for routing messages to and from the device based on the physical location.

Abstract: A method for optimizing communication in a network involving wanted and unwanted network messages wherein a set of filters are configured to accept all wanted network messages and minimize the acceptance of unwanted messages in accordance with a selection criteria. A first filter is configured to receive all wanted messages. The first filter includes a defined bit and an undefined bit. Each defined bit is either in a first state or in a second state. A second filter is set equal to the first filter. The first filter and the second filter compose a first set of filters. Potential configurations of the first set of filters are determined wherein each potential configuration is capable of accepting all wanted network messages. The potential configurations are optimized wherein the optimized configuration ensures acceptance of all wanted messages and reduces the amount of accepted unwanted messages.

Abstract: A method for monitoring a factory process is disclosed. The factory process comprises a plurality of tasks. The method comprises displaying the factory process in real-time as a three-dimensional, free-camera, computer generated representation of the process as a whole, selectively displaying each of the tasks in real-time as a three-dimensional, free-camera, computer generated representation of the respective task.

Abstract: Electrical apparatus comprising a base which can accommodate a constituent member, and which can be fitted to a holding rail, in particular a top hat-type rail, via a locking device with two opposite fastening catches (30), one of which is joined to a slide (31).

Abstract: A control system includes an Internet web interface to a network of at least one programmable logic control system running an application program for controlling output devices in response to status of input devices. The Web interface runs Web pages from an Ethernet board coupled directly to the PLC back plane and includes an HTTP protocol interpreter, a PLC back plane driver, a TCP/IP stack, and an Ethernet board kernel. The Web interface provides access to the PLC back plane by a user at a remote location through the Internet. The interface translates the industry standard Ethernet, TCP/IP and HTTP protocols used on the Internet into data recognizable to the PLC. Using this interface, the user can retrieve all pertinent data regarding the operation of the programmable logic controller system.

Abstract: A system and corresponding method for communicating non-I/O data between components of an industrial control system (ICS) including control or automation devices and a programmable logic controller. The method includes the steps of: having one of the components, such as a control or automation device, transmit the non-I/O data formatted as a message frame in the same way as a I/O data is formatted as a message frame, including having a message type identifier to identify that the message frame bears non-I/O data; and having another of the components, such as the programmable logic controller, receive the encapsulated non-I/O data as a message frame, wherein the receiving component identifies the non-I/O data based on the message type identifier conveyed with the message frame and extracts the non-I/O data from the message frame. The transmitting component transmits the non-I/O data over a field bus such as a PROFIBUS, INTERBUS, DEVICENET, CAN, or CAN OPEN types of field bus.

Abstract: Analog input module for a programmable logic controller, the analog input module having an input circuit with terminals for accepting either a single voltage range or a single current range from process control sensors. The analog input module includes an analog-to-digital converter and an input circuit with an output terminal connected to the input of the analog-to-digital converter, a voltage input terminal, a current input terminal, and a common terminal. The input circuit is configured to accept a voltage input between the voltage input terminal and the common terminal, to accept a current input between the current input terminal and the common terminal, and to provide an output voltage at the output terminal dependent upon either the voltage input or the current input, without switching or configuring between them.

Abstract: A method and apparatus for assigning a permanent identifier to a client node initially having a default identifier and being operably connected to a network. A server determines a location of the client node and assigns the permanent identifier to the client node in response to the location of the client node on the network.

Abstract: A CANOpen network including a bus master and an I/O module are disclosed. Each are communicatively coupled to a common bus. The I/O module is subject to a state change. The bus master collects state information from the I/O module by sending a state signal from the I/O module to the bus master in response to a state change of the I/O module, sending a trigger signal from the bus master to the I/O module, and sending a state signal from the I/O module to the bus master in response to the trigger signal.

Abstract: A CANOpen network including a bus master and an I/O module is disclosed. Each is communicatively coupled to a common bus. The I/O module is subject to a state change. The bus master collects state information from the I/O module by determining if the bus master is prepared to receive further data from the bus and sending a trigger signal from the bus master to the I/O module if the bus master is prepared to receive further data from the bus. The I/O modules sends a state signal to the bus master in response to the trigger signal.

Abstract: A method and apparatus for improving communication throughout a network is disclosed. The network includes a module capable of transmitting messages in response to a change of state. Bit errors transmitted within network are detected and a detected bit error rate is calculated. A residual, i.e., undetected, error probability is determined in response to the detected bit error rate. Corrective action towards reducing the effects of the residual errors is taken, e.g., retransmission of messages, in response to the residual error probability exceeding a predetermined threshold.

Abstract: A mobile testing apparatus, method, and computer product that performs high speed testing of mobile pressure devices using high speed totalization, where testing of multiple devices may be done concurrently. Test results are communicated to a central console using a variety of communication methods, including wireless, and the testing apparatus and method is robust and reliable despite the occurrence of transient communication failures, because the test apparatus and method may operate independently of central control.